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5A regulated power supply circuit composed of LM340T integrated voltage regulator (powering TTL integrated circuits)
Source: InternetPublisher:李商隐身 Updated: 2014/05/26
![LM340T集成稳压器构成的5A稳压电源电路(给TTL集成电路供电)](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/f0644cfe-3c63-11ec-a9b8-086126841eb8.jpg)
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