EAY62609601-LG 42PA4500-ZF SMPS and BBKLEM1961, LEM2261and LEM2961 SMPS audio output schematic

 

EAY62609601-LG 42PA4500-ZF SMPS 

Protection over Current, Under Voltage and Over Voltage conditions

The OCP test of STBY, 5.2V, M5V and 17V should setup current rise slew rate greater than 3.6A/S.
This Power Supply has above-mentioned protections.
The time for short shall be less than 10sec.
PSU should be shut down by under voltage protection when short circuit test
PSU should be wake up normally when AC off-on / Relay off-on / protection removal
Short circuit protection between different output terminals is not considered.
Trip point for over voltage indicates the operating point when the output voltage slowly increases.

AC Over-voltage Test
1) Over voltage shall test 315Vac~340Vac , Protection should be occur.
2) No fire, shock hazard or explosion shall occur.

Function of protection

Input Output PIN assignment

Schematic

BBK LEM1961 POWER BOARD schematic

Audio output schematic