Custom UPC1237 speaker/speaker protection PCB board can use OMRON relay for startup delay

Function introduction:

There is no need to use a 3-second delay when turning on and closing after a 1-second delay. DC monitoring protection, real-time protection of speakers. Turn off the speaker instantly.

Design features:

1. The UPC1237 with the best performance is used as the core component, which has functions such as startup delay, DC protection, and power outage shock prevention

2. Using OMRIN's original high current relay as the core device is not afraid of contact sparking and oxidation

3. Using 7812 as a voltage regulator, with a wide power supply range, capable of reaching any range from AC12V to AC24V

4. The circuit is simple and reliable. It is very easy to make and does not require debugging

5. Size: 76x43mm. High precision CNC double-sided tinned circuit board with small volume and convenient installation