为满足空空导弹引战系统对电源的要求，根据引战系统各供电电压的特点，设计了一种低纹波DC/DC开关电源。开关电源模块电路采用单端反激式的隔离型DC/DC变换器，通过外围电路的多重滤波技术及PCB板的布局设计将电压纹波减小到10 mV以内，有效地降低了噪声对引战系统的影响，满足了设计要求。%In order to meet the requirements of air-to-air missile fuze to power , a low ripple DC/DC switch power is designed .The module circuit of switch power bases on isolated single end flyback DC /DC converter .The ripple of voltage is decreased to less 10 mV by ways of multi-filter technology in peripheral circuit and PCB layout design , which can reduce the noise in fuze system effectively and can reach the de-sign requirements .
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