Protection circuit using uPC1237 chip
Source: InternetPublisher:拳制龙 Keywords: UPC protection circuit audio channel Updated: 2021/03/20
Shown is a protection circuit using the pPC1237 chip . Only the electrical principle of the left channel is shown in the figure. The structure of the right channel is the same.
The circuit has speaker output protection, power output stage overload protection, AC open circuit detection protection, and power on/off. Squelch protection and other protection functions.
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