LED drive circuit based on switching power supply
Source: InternetPublisher:zht24 Keywords: LED switching power supply power display power supply Updated: 2021/07/22
Rp in the picture is a variable resistor, used to adjust the LED brightness. If a power converter with adjustable output voltage is used, it will be much more convenient for series-parallel applications of LEDs. Currently, power supplies with adjustable output voltage are more expensive and larger than those with fixed voltage mode.
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