自从20世纪90年代以来，各种单片 开关电源 集成电路竟相问世，现已形成TOPSwitch、TOPSwitch-2、TOPSwitch-FX、TOPSwitch-GX、TinySwitch和TinySwitch-2六大系列近百种型号。它们具有高集成度、高性价比、最简外围电路、最佳性能指性等显著优点，现已成为国际上开发250W以下中、小功率开关电源、精密开关电源及电源模块的优选集成电路。目前，单片开关电源已被应用到测温系统和温度控制系统中。
The monolithic switching power supply operates in a high-frequency, high-voltage, high-current switching state. The electromagnetic interference generated is divided into common-mode interference and series-mode interference, and is transmitted to the outside in the form of conduction or radiation. The electromagnetic compatibility design of the monolithic switching power supply is to attenuate the electromagnetic interference to within the allowable limit so that it does not affect the normal operation of electronic equipment.
1. Basic circuit of monolithic switching power supply
2. Filtering analysis of electromagnetic interference of monolithic switching power supply
3. Circuit Model Causing Electromagnetic Interference
1. Circuit model of common mode interference
2. Circuit model of series mode interference
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