Typical working principle diagram of HY8040 circuit
Source: InternetPublisher:王达业 Updated: 2014/09/17
![HY8040电路典型工作原理图](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/63accac0-3c64-11ec-8721-086126841eb8.jpg)
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