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Joint Peace Lighting Co., Limited

ADD:No.4, Lane9, Tongpai East,Tianan Park Bantian,Longgang District´╝îShenzhen China 518129.

Contact:Annie (Sales Director)

Mobile:86-13423745087

E-mail: annie@joinpeled.com

www.joinpeled.com

www.jopeled.com


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Learning A LED Power Supply Switching Circuit

The LED power supply switching circuit comprising transistors Q1, Q2, Q3, Q4, resistors R1, R2, R3, R4, R5, R6, Figure we can see: the base of transistor Q2 is coupled via a resistor R2 and the collector of transistor Q1 emitting transistor Q2 is via a resistor R3 is connected to its base, and base of the transistor Q4 is connected to the collector of transistor Q3 via a resistor R5, the emitter electrode of transistor Q4 is connected to its base via a resistor R6, transistor Q2 and transistor Q4 the emitter is connected to the power supply, then tri manifold Q1 is connected through a resistor R1 and a control circuit, connected to the base of transistor Q3 through a resistor R4 to the control circuit, then the transistor Q1 and the emitter of the transistor Q3 is grounded, and transistor Q2 and the collector of the transistor Q4 are connected with the LED dimming module. The circuit has a seemingly simple way to achieve at least two different LED drive power output to control at least two LED rotation modules to achieve different light effects.