{"id":2348,"date":"2026-02-21T09:13:47","date_gmt":"2026-02-21T09:13:47","guid":{"rendered":"https:\/\/www.qinx-power.com\/?post_type=news&p=2348"},"modified":"2026-02-21T09:13:47","modified_gmt":"2026-02-21T09:13:47","slug":"switching-power-supplies-revolutionized-modern-electronics","status":"publish","type":"news","link":"https:\/\/www.qinxpower.com\/vi\/news\/bo-nguon-chuyen-mach-da-tao-nen-cuoc-cach-mang-trong-nganh-dien-tu-hien-dai\/","title":{"rendered":"C\u00e1ch b\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a ng\u00e0nh \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i: Nguy\u00ean l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng."},"content":{"rendered":"

\"\"<\/h1>\n

C\u00e1ch b\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a ng\u00e0nh \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i: Nguy\u00ean l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng.<\/h1>\n

T\u00f3m t\u1eaft<\/h2>\n

B\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch (SMPS) l\u00e0 c\u00f4ng ngh\u1ec7 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng chi\u1ebfm \u01b0u th\u1ebf trong ng\u00e0nh \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i, \u0111\u1ea1t hi\u1ec7u su\u1ea5t 70-95% so v\u1edbi 30-50% \u1edf c\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh tuy\u1ebfn t\u00ednh truy\u1ec1n th\u1ed1ng. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y xem x\u00e9t c\u00e1c nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng, c\u00e1c bi\u1ebfn th\u1ec3 ki\u1ebfn tr\u00fac v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng c\u1ee7a ch\u00fang trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p.<\/p>\n

Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i: Truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c<\/h2>\n

Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh tuy\u1ebfn t\u00ednh ti\u00eau t\u00e1n \u0111i\u1ec7n \u00e1p d\u01b0 th\u1eeba d\u01b0\u1edbi d\u1ea1ng nhi\u1ec7t, b\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch (SMPS) s\u1eed d\u1ee5ng chuy\u1ec3n m\u1ea1ch t\u1ea7n s\u1ed1 cao (th\u01b0\u1eddng l\u00e0 50kHz-1MHz) \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra th\u00f4ng qua \u0111i\u1ec1u ch\u1ebf \u0111\u1ed9 r\u1ed9ng xung (PWM). Qu\u00e1 tr\u00ecnh c\u01a1 b\u1ea3n bao g\u1ed3m:<\/p>\n

    \n
  1. S\u1eeda ch\u1eefa<\/strong>: Chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u th\u00e0nh ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u xung nh\u1ecbp<\/li>\n
  2. Chuy\u1ec3n m\u1ea1ch t\u1ea7n s\u1ed1 cao<\/strong>Chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u th\u00e0nh s\u00f3ng vu\u00f4ng b\u1eb1ng c\u00e1c transistor MOSFET\/IGBT.<\/li>\n
  3. S\u1ef1 bi\u1ebfn \u0111\u1ed5i<\/strong>\u0110i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111i\u1ec7n \u00e1p th\u00f4ng qua c\u00e1c bi\u1ebfn \u00e1p t\u1ea7n s\u1ed1 cao nh\u1ecf g\u1ecdn.<\/li>\n
  4. L\u1ecdc<\/strong>T\u00e1i t\u1ea1o t\u00edn hi\u1ec7u \u0111\u1ea7u ra DC \u1ed5n \u0111\u1ecbnh th\u00f4ng qua b\u1ed9 l\u1ecdc LC.<\/li>\n<\/ol>\n

    C\u00e1c c\u1ea5u tr\u00fac v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/h2>\n

    1.\u00a0B\u1ed9 chuy\u1ec3n \u0111\u1ed5i Buck (gi\u1ea3m \u00e1p)<\/strong><\/h3>\n
      \n
    • Hi\u1ec7u qu\u1ea3<\/strong>: 85-95%<\/li>\n
    • \u1ee8ng d\u1ee5ng<\/strong>: \u0110i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p b\u1ed9 x\u1eed l\u00fd (12V\u21921.8V), thi\u1ebft b\u1ecb ch\u1ea1y b\u1eb1ng pin<\/li>\n
    • L\u1ee3i th\u1ebf ch\u00ednh<\/strong>S\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n t\u1ed1i thi\u1ec3u, \u0111\u00e1p \u1ee9ng t\u1ee9c th\u1eddi tuy\u1ec7t v\u1eddi<\/li>\n<\/ul>\n

      2.\u00a0B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u0103ng \u00e1p (T\u0103ng \u00e1p)<\/strong><\/h3>\n
        \n
      • Hi\u1ec7u qu\u1ea3<\/strong>: 80-90%<\/li>\n
      • \u1ee8ng d\u1ee5ng<\/strong>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED, t\u0103ng \u0111i\u1ec7n \u00e1p pin (3.7V\u21925V)<\/li>\n
      • Th\u1eed th\u00e1ch thi\u1ebft k\u1ebf<\/strong>: Gi\u1edbi h\u1ea1n \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra do \u1ee9ng su\u1ea5t c\u1ee7a c\u00f4ng t\u1eafc<\/li>\n<\/ul>\n

        3.\u00a0B\u1ed9 chuy\u1ec3n \u0111\u1ed5i Buck-Boost<\/strong><\/h3>\n
          \n
        • Hi\u1ec7u qu\u1ea3<\/strong>: 75-85%<\/li>\n
        • \u1ee8ng d\u1ee5ng<\/strong>H\u1ec7 th\u1ed1ng pin v\u1edbi d\u1ea3i \u0111i\u1ec7n \u00e1p r\u1ed9ng<\/li>\n
        • \u0110\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt<\/strong>\u0110\u1ea3o c\u1ef1c \u0111\u1ea7u ra trong c\u1ea5u h\u00ecnh c\u01a1 b\u1ea3n<\/li>\n<\/ul>\n

          4.\u00a0B\u1ed9 chuy\u1ec3n \u0111\u1ed5i Flyback<\/strong><\/h3>\n
            \n
          • Hi\u1ec7u qu\u1ea3<\/strong>: 70-85%<\/li>\n
          • \u1ee8ng d\u1ee5ng<\/strong>: B\u1ed9 chuy\u1ec3n \u0111\u1ed5i AC\/DC c\u00f4ng su\u1ea5t th\u1ea5p (<100W), h\u1ec7 th\u1ed1ng nhi\u1ec1u \u0111\u1ea7u ra<\/li>\n
          • \u0110\u1eb7c bi\u1ec7t<\/strong>M\u00e1y bi\u1ebfn \u00e1p v\u1eeba c\u00f3 ch\u1ee9c n\u0103ng c\u00e1ch ly v\u1eeba c\u00f3 ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n

            5.\u00a0B\u1ed9 chuy\u1ec3n \u0111\u1ed5i ti\u1ebfn<\/strong><\/h3>\n
              \n
            • Hi\u1ec7u qu\u1ea3<\/strong>: 80-90%<\/li>\n
            • \u1ee8ng d\u1ee5ng<\/strong>H\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p c\u00f4ng su\u1ea5t trung b\u00ecnh (100W-500W)<\/li>\n
            • L\u1ee3i th\u1ebf<\/strong>: T\u1eadn d\u1ee5ng m\u00e1y bi\u1ebfn \u00e1p t\u1ed1t h\u01a1n so v\u1edbi c\u1ea5u tr\u00fac flyback<\/li>\n<\/ul>\n

              C\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t quan tr\u1ecdng<\/h2>\n\n\n\n\n\n\n\n\n\n
              Tham s\u1ed1<\/th>\nPh\u1ea1m vi \u0111i\u1ec3n h\u00ecnh<\/th>\nTi\u00eau chu\u1ea9n ng\u00e0nh<\/th>\n<\/tr>\n<\/thead>\n
              Hi\u1ec7u qu\u1ea3<\/td>\n70-95%<\/td>\n80 Plus Platinum (\u226594%)<\/td>\n<\/tr>\n
              T\u1ea7n s\u1ed1 chuy\u1ec3n m\u1ea1ch<\/td>\n50kHz-2MHz<\/td>\n100-500kHz (c\u00e2n b\u1eb1ng t\u1ed1i \u01b0u)<\/td>\n<\/tr>\n
              M\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t<\/td>\n10-50W\/in\u00b3<\/td>\n30W\/in\u00b3 (thi\u1ebft k\u1ebf ti\u00ean ti\u1ebfn)<\/td>\n<\/tr>\n
              Ti\u1ebfng \u1ed3n g\u1ee3n s\u00f3ng<\/td>\n10-100mVpp<\/td>\n<50mVpp (\u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m)<\/td>\n<\/tr>\n
              Ph\u1ea3n \u1ee9ng tho\u00e1ng qua<\/td>\n50-200\u03bcs<\/td>\n<100\u03bcs (hi\u1ec7u n\u0103ng cao)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb<\/h2>\n

              C\u00e1c thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch (SMPS) hi\u1ec7n \u0111\u1ea1i ph\u1ea3i gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 sau:<\/p>\n

                \n
              • Ph\u00e1t x\u1ea1 d\u1eabn<\/strong>Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n FCC Ph\u1ea7n 15\/EN 55032 Lo\u1ea1i B<\/li>\n
              • Ph\u00e1t x\u1ea1 b\u1ee9c x\u1ea1<\/strong>K\u1ef9 thu\u1eadt che ch\u1eafn v\u00e0 b\u1ed1 tr\u00ed ph\u00f9 h\u1ee3p<\/li>\n
              • Hi\u1ec7u ch\u1ec9nh h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t<\/strong>: B\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi ngu\u1ed3n \u0111i\u1ec7n >75W (IEC 61000-3-2)<\/li>\n<\/ul>\n

                \u1ee8ng d\u1ee5ng v\u00e0 y\u00eau c\u1ea7u trong ng\u00e0nh<\/h2>\n

                \u0110i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/strong><\/h3>\n
                  \n
                • \u01afu ti\u00ean m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng<\/strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i USB-C PD si\u00eau nh\u1ecf g\u1ecdn<\/li>\n
                • Ti\u00eau chu\u1ea9n hi\u1ec7u qu\u1ea3<\/strong>: C\u1ea5p \u0111\u1ed9 VI c\u1ee7a B\u1ed9 N\u0103ng l\u01b0\u1ee3ng, B\u1eadc 2 c\u1ee7a Quy t\u1eafc \u1ee9ng x\u1eed<\/li>\n
                • Ch\u1ee9ng nh\u1eadn an to\u00e0n<\/strong>: UL\/IEC 62368-1<\/li>\n<\/ul>\n

                  T\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/strong><\/h3>\n
                    \n
                  • \u0110\u1ed9 b\u1ec1n<\/strong>Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng (-40\u00b0C \u0111\u1ebfn +85\u00b0C)<\/li>\n
                  • T\u00ednh n\u0103ng b\u1ea3o v\u1ec7<\/strong>: OVP, OCP, OTP v\u1edbi ch\u1ee9c n\u0103ng ng\u0103n ng\u1eeba kh\u00f3a m\u1ea1ch<\/li>\n
                  • Y\u00eau c\u1ea7u c\u00e1ch ly<\/strong>: C\u00e1ch ly t\u0103ng c\u01b0\u1eddng theo ti\u00eau chu\u1ea9n IEC 61800-5-1<\/li>\n<\/ul>\n

                    Vi\u1ec5n th\u00f4ng<\/strong><\/h3>\n
                      \n
                    • Ph\u1ea1m vi \u0111\u1ea7u v\u00e0o<\/strong>\u0110i\u1ec7n \u00e1p: 36-75V DC (\u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c 48V)<\/li>\n
                    • S\u1ef1 d\u01b0 th\u1eeba<\/strong>Kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng song song N+1<\/li>\n
                    • MTBF<\/strong>>500.000 gi\u1edd (Bellcore\/Telecordia)<\/li>\n<\/ul>\n

                      Thi\u1ebft b\u1ecb y t\u1ebf<\/strong><\/h3>\n
                        \n
                      • D\u00f2ng r\u00f2 r\u1ec9<\/strong>: <100\u03bcA (thi\u1ebft b\u1ecb lo\u1ea1i BF\/CF)<\/li>\n
                      • S\u1ef1 c\u00e1ch ly<\/strong>: 2\u00d7MOPP (Ph\u01b0\u01a1ng ti\u1ec7n b\u1ea3o v\u1ec7 b\u1ec7nh nh\u00e2n)<\/li>\n
                      • Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/strong>Ti\u00eau chu\u1ea9n IEC 60601-1 phi\u00ean b\u1ea3n th\u1ee9 3<\/li>\n<\/ul>\n

                        Chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf<\/h2>\n

                        H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn linh ki\u1ec7n<\/strong><\/h3>\n
                          \n
                        1. Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch<\/strong>: MOSFET SiC cho ho\u1ea1t \u0111\u1ed9ng >100kHz, GaN cho ho\u1ea1t \u0111\u1ed9ng >500kHz<\/li>\n
                        2. Linh ki\u1ec7n t\u1eeb t\u00ednh<\/strong>L\u00f5i ferrite t\u1ed5n hao th\u1ea5p (PC95, N49) v\u1edbi d\u00e2y Litz<\/li>\n
                        3. T\u1ee5 \u0111i\u1ec7n<\/strong>M\u1ea3ng MLCC d\u00f9ng cho \u0111i\u1ec7n dung kh\u1ed1i, polymer d\u00f9ng cho l\u1ecdc \u0111\u1ea7u ra.<\/li>\n<\/ol>\n

                          Qu\u1ea3n l\u00fd nhi\u1ec7t<\/strong><\/h3>\n
                            \n
                          • B\u1ed1 c\u1ee5c m\u1ea1ch in (PCB Layout)<\/strong>: T\u1ea5m t\u1ea3n nhi\u1ec7t chuy\u00ean d\u1ee5ng v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u<\/li>\n
                          • Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n<\/strong>Kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u 2mm cho c\u00e1c thi\u1ebft k\u1ebf 100V tr\u1edf l\u00ean<\/li>\n
                          • T\u1ea3n nhi\u1ec7t<\/strong>\u0110\u01b0\u1ee3c t\u00ednh to\u00e1n d\u1ef1a tr\u00ean gi\u00e1 tr\u1ecb \u03b8JA x\u1ea5u nh\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh.<\/li>\n<\/ul>\n

                            Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t<\/strong><\/h3>\n
                              \n
                            • Ch\u1ebf \u0111\u1ed9 \u0111i\u1ec7n \u00e1p<\/strong>: Tri\u1ec3n khai \u0111\u01a1n gi\u1ea3n, hi\u1ec7u n\u0103ng trung b\u00ecnh<\/li>\n
                            • Ch\u1ebf \u0111\u1ed9 hi\u1ec7n t\u1ea1i<\/strong>Kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf nhi\u1ec5u \u0111\u01b0\u1eddng d\u00e2y v\u01b0\u1ee3t tr\u1ed9i, gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n v\u1ed1n c\u00f3.<\/li>\n
                            • \u0110i\u1ec1u khi\u1ec3n k\u1ef9 thu\u1eadt s\u1ed1<\/strong>: H\u1ec7 th\u1ed1ng b\u00f9 th\u00edch \u1ee9ng, kh\u1ea3 n\u0103ng \u0111o t\u1eeb xa<\/li>\n<\/ul>\n

                              Xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai<\/h2>\n
                                \n
                              1. Ch\u1ea5t b\u00e1n d\u1eabn c\u00f3 d\u1ea3i n\u0103ng l\u01b0\u1ee3ng r\u1ed9ng<\/strong>: GaN v\u00e0 SiC cho ph\u00e9p chuy\u1ec3n m\u1ea1ch trong d\u1ea3i t\u1ea7n MHz<\/li>\n
                              2. T\u1eeb t\u00ednh t\u00edch h\u1ee3p<\/strong>Bi\u1ebfn \u00e1p v\u00e0 cu\u1ed9n c\u1ea3m t\u00edch h\u1ee3p tr\u00ean m\u1ea1ch in (PCB)<\/li>\n
                              3. \u0110i\u1ec1u khi\u1ec3n t\u1ed1i \u01b0u h\u00f3a b\u1eb1ng AI<\/strong>H\u1ecdc m\u00e1y cho b\u00f9 v\u00f2ng l\u1eb7p th\u00edch \u1ee9ng<\/li>\n
                              4. T\u00edch h\u1ee3p ngu\u1ed3n \u0111i\u1ec7n kh\u00f4ng d\u00e2y<\/strong>: C\u1ea5u tr\u00fac c\u1ed9ng h\u01b0\u1edfng cho vi\u1ec7c truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng ti\u1ebfp x\u00fac<\/li>\n<\/ol>\n

                                Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n

                                C\u00f4ng ngh\u1ec7 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch (SMPS) ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi nhu c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t cao h\u01a1n, m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t l\u1edbn h\u01a1n v\u00e0 \u0111\u1ed9 tin c\u1eady \u0111\u01b0\u1ee3c n\u00e2ng cao. Vi\u1ec7c tri\u1ec3n khai th\u00e0nh c\u00f4ng \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u su\u1ea5t \u0111i\u1ec7n, c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 nhi\u1ec7t, tu\u00e2n th\u1ee7 \u0111i\u1ec7n t\u1eeb v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 chi ph\u00ed. Khi c\u00e1c quy \u0111\u1ecbnh v\u1ec1 n\u0103ng l\u01b0\u1ee3ng to\u00e0n c\u1ea7u ng\u00e0y c\u00e0ng th\u1eaft ch\u1eb7t v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n, thi\u1ebft k\u1ebf SMPS v\u1eabn l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt quan tr\u1ecdng v\u1edbi nh\u1eefng c\u01a1 h\u1ed9i \u0111\u1ed5i m\u1edbi li\u00ean t\u1ee5c.<\/p>\n\n

                                \n\n\t\t\n
                                  \n\t\t\t <\/ul>\n <\/div>","protected":false},"excerpt":{"rendered":"

                                  How Switching Power Supplies Revolutionized Modern Electronics: Principles and Applications Executive Summary Switching power supplies (SMPS) represent the dominant power conversion technology in contemporary electronics, achieving 70-95% efficiency compared to 30-50% in traditional linear regulators. This comprehensive guide examines their operational principles, architectural variations, and critical applications across industries. Core Operating Principle: Precision-Controlled Energy Transfer […]<\/p>\n","protected":false},"author":1,"featured_media":2349,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"_excerptai":0,"_xhaitool_aitasks":false,"_xhaitool_aitasks_status":false,"_aiimage_cueword":"","_aiimage_status":0,"_xhai_excerpt":"","_joinchat":[],"footnotes":""},"news_center":[67],"class_list":["post-2348","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_center-industry-news"],"acf":[],"yoast_head":"\nHow Switching Power Supplies Revolutionized Modern Electronics<\/title>\n<meta name=\"description\" content=\"Switching power supply technology continues to evolve, driven by demands for higher efficiency, increased power density, and enhanced reliability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.qinxpower.com\/vi\/news\/bo-nguon-chuyen-mach-da-tao-nen-cuoc-cach-mang-trong-nganh-dien-tu-hien-dai\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Switching Power Supplies Revolutionized Modern Electronics: Principles and Applications\" \/>\n<meta property=\"og:description\" content=\"Switching power supply technology continues to evolve, driven by demands for higher efficiency, increased power density, and enhanced reliability.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.qinxpower.com\/vi\/news\/bo-nguon-chuyen-mach-da-tao-nen-cuoc-cach-mang-trong-nganh-dien-tu-hien-dai\/\" \/>\n<meta property=\"og:site_name\" content=\"QINXPOWER\u00ae\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/\",\"url\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/\",\"name\":\"How Switching Power Supplies Revolutionized Modern Electronics\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.qinxpower.com\\\/wp-content\\\/uploads\\\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg\",\"datePublished\":\"2026-02-21T09:13:47+00:00\",\"description\":\"Switching power supply technology continues to evolve, driven by demands for higher efficiency, increased power density, and enhanced reliability.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.qinxpower.com\\\/wp-content\\\/uploads\\\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/www.qinxpower.com\\\/wp-content\\\/uploads\\\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg\",\"width\":2560,\"height\":2000,\"caption\":\"Switching Power Supplies Revolutionized Modern Electronics\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/switching-power-supplies-revolutionized-modern-electronics\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/www.qinxpower.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u65b0\u95fb\u4e2d\u5fc3\",\"item\":\"https:\\\/\\\/www.qinxpower.com\\\/news\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"How Switching Power Supplies Revolutionized Modern Electronics: Principles and Applications\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/#website\",\"url\":\"https:\\\/\\\/www.qinxpower.com\\\/\",\"name\":\"QINXPOWER\u00ae\",\"description\":\"Power supplies Manufacturer\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/#organization\"},\"alternateName\":\"Power supplies Manufacturer | QINXPOWER\u00ae\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.qinxpower.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/#organization\",\"name\":\"( Guangdong )Shenzhen Qinx Technology Co.,Ltd.\",\"alternateName\":\"Shenzhen Qinx Technology Co.,Ltd.\",\"url\":\"https:\\\/\\\/www.qinxpower.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.qinx-power.com\\\/wp-content\\\/uploads\\\/QINXPOWER-LOGO.jpg\",\"contentUrl\":\"https:\\\/\\\/www.qinx-power.com\\\/wp-content\\\/uploads\\\/QINXPOWER-LOGO.jpg\",\"width\":800,\"height\":800,\"caption\":\"( Guangdong )Shenzhen Qinx Technology Co.,Ltd.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.qinxpower.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"description\":\"QINXPOWER\u00ae is one of the leading manufacturers in China dedicated to standard power supply products. Our headquarter in USA, global sales center in Shenzhen and production factory located in Dongguan, Guangdong Province China\",\"email\":\"info@qinxpower.com\",\"telephone\":\"+8613266660104\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"B\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a ng\u00e0nh \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i nh\u01b0 th\u1ebf n\u00e0o?","description":"C\u00f4ng ngh\u1ec7 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi nhu c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t cao h\u01a1n, m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t l\u1edbn h\u01a1n v\u00e0 \u0111\u1ed9 tin c\u1eady \u0111\u01b0\u1ee3c n\u00e2ng cao.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.qinxpower.com\/vi\/news\/bo-nguon-chuyen-mach-da-tao-nen-cuoc-cach-mang-trong-nganh-dien-tu-hien-dai\/","og_locale":"vi_VN","og_type":"article","og_title":"How Switching Power Supplies Revolutionized Modern Electronics: Principles and Applications","og_description":"Switching power supply technology continues to evolve, driven by demands for higher efficiency, increased power density, and enhanced reliability.","og_url":"https:\/\/www.qinxpower.com\/vi\/news\/bo-nguon-chuyen-mach-da-tao-nen-cuoc-cach-mang-trong-nganh-dien-tu-hien-dai\/","og_site_name":"QINXPOWER\u00ae","og_image":[{"width":2560,"height":2000,"url":"https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"3 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/","url":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/","name":"B\u1ed9 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a ng\u00e0nh \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i nh\u01b0 th\u1ebf n\u00e0o?","isPartOf":{"@id":"https:\/\/www.qinxpower.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/#primaryimage"},"image":{"@id":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/#primaryimage"},"thumbnailUrl":"https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg","datePublished":"2026-02-21T09:13:47+00:00","description":"C\u00f4ng ngh\u1ec7 ngu\u1ed3n chuy\u1ec3n m\u1ea1ch ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi nhu c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t cao h\u01a1n, m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t l\u1edbn h\u01a1n v\u00e0 \u0111\u1ed9 tin c\u1eady \u0111\u01b0\u1ee3c n\u00e2ng cao.","breadcrumb":{"@id":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/#primaryimage","url":"https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg","contentUrl":"https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-scaled.jpg","width":2560,"height":2000,"caption":"Switching Power Supplies Revolutionized Modern Electronics"},{"@type":"BreadcrumbList","@id":"https:\/\/www.qinxpower.com\/news\/switching-power-supplies-revolutionized-modern-electronics\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.qinxpower.com\/"},{"@type":"ListItem","position":2,"name":"\u65b0\u95fb\u4e2d\u5fc3","item":"https:\/\/www.qinxpower.com\/news\/"},{"@type":"ListItem","position":3,"name":"How Switching Power Supplies Revolutionized Modern Electronics: Principles and Applications"}]},{"@type":"WebSite","@id":"https:\/\/www.qinxpower.com\/#website","url":"https:\/\/www.qinxpower.com\/","name":"QINXPOWER\u00ae","description":"Nh\u00e0 s\u1ea3n xu\u1ea5t ngu\u1ed3n \u0111i\u1ec7n","publisher":{"@id":"https:\/\/www.qinxpower.com\/#organization"},"alternateName":"Power supplies Manufacturer | QINXPOWER\u00ae","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.qinxpower.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/www.qinxpower.com\/#organization","name":"(Qu\u1ea3ng \u0110\u00f4ng) C\u00f4ng ty TNHH C\u00f4ng ngh\u1ec7 Qinx Th\u00e2m Quy\u1ebfn.","alternateName":"Shenzhen Qinx Technology Co.,Ltd.","url":"https:\/\/www.qinxpower.com\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.qinxpower.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.qinx-power.com\/wp-content\/uploads\/QINXPOWER-LOGO.jpg","contentUrl":"https:\/\/www.qinx-power.com\/wp-content\/uploads\/QINXPOWER-LOGO.jpg","width":800,"height":800,"caption":"( Guangdong )Shenzhen Qinx Technology Co.,Ltd."},"image":{"@id":"https:\/\/www.qinxpower.com\/#\/schema\/logo\/image\/"},"description":"QINXPOWER\u00ae l\u00e0 m\u1ed9t trong nh\u1eefng nh\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng \u0111\u1ea7u t\u1ea1i Trung Qu\u1ed1c chuy\u00ean v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m ngu\u1ed3n \u0111i\u1ec7n ti\u00eau chu\u1ea9n. Tr\u1ee5 s\u1edf ch\u00ednh c\u1ee7a ch\u00fang t\u00f4i \u0111\u1eb7t t\u1ea1i Hoa K\u1ef3, trung t\u00e2m b\u00e1n h\u00e0ng to\u00e0n c\u1ea7u t\u1ea1i Th\u00e2m Quy\u1ebfn v\u00e0 nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t \u0111\u1eb7t t\u1ea1i \u0110\u00f4ng Quan, t\u1ec9nh Qu\u1ea3ng \u0110\u00f4ng, Trung Qu\u1ed1c.","email":"info@qinxpower.com","telephone":"+8613266660104"}]}},"_links":{"self":[{"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/news\/2348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/comments?post=2348"}],"version-history":[{"count":1,"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/news\/2348\/revisions"}],"predecessor-version":[{"id":2350,"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/news\/2348\/revisions\/2350"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/media\/2349"}],"wp:attachment":[{"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/media?parent=2348"}],"wp:term":[{"taxonomy":"news_center","embeddable":true,"href":"https:\/\/www.qinxpower.com\/vi\/wp-json\/wp\/v2\/news_center?post=2348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}