某前置放大器骚扰功率测试不合格整改案例

Unqualifi ed Rectifi cation Case for Disturbance Power Test of A Pre-amplifi er

介绍了某前置放大器在电子产品认证中经常遇见的骚扰功率测试项目,重点从PCB板级电路EMC设计方面进行测试不合格原因分析,并给出整改对策。并由此案例引出电子产品电磁兼容设计时的注意事项,以图能给电子产品设计工程师提供参考,使其能以较高概率一次性通过产品认证。

This paper electronics product it analyzes the test describes a certain preamplifier＇ s measurement of disturbance power during certification. Firstly, from the perspective of the PCB board-level circuit, failure causes. Then, it gives related corrective measures and verifies their effect. Finally, it summarizes the EMC design precautions in electronic product design in order to offer some references for engineers so that the products can have high probability to obtain product certification.