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dcdc电源芯片型号ichaiyang 2024-05-10 2:12 20
Filtered 36*1.4 = 50v DC. The voltage is too high, it is very easy to burn 7824 three-terminal voltage regulator. It doesn't fit. At most 24 10v = 34v or so is enough. What else to...

Input AC36V through the ballast and add capacitance, how many DC V is it? I want to add 7824 tubes directly, and I need DC24V.

Filtered 36*1.4 = 50v DC. The voltage is too high, it is very easy to burn 7824 three-terminal voltage regulator. It doesn't fit. At most 24 10v = 34v or so is enough. What else to add is to see if the working current you need is too large. If it is not large (such as 100mA level), the voltage regulator can be stepped down, otherwise, the 2-level 7824 circuit is used. The front stage has a 15v voltage regulator in the 7824 \"ground\" string.

Therefore, it is recommended to use 24v switching power supply. High efficiency.