LED current balance driving circuit

LED current balance driving circuit

A LED current-balance driving circuit having a current-balance coil set, a switching unit, and a control circuit is provided. The current-balance coil set has at least a first coil and a second coil, which are in connection with a respective LED string for balancing the current flows on the LED stri...

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Hauptverfasser: LENG, CHUNG-MING, LI, CHIENING
Format: Patent
Sprache:chi ; eng
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ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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creator LENG, CHUNG-MING
LI, CHIENING
description A LED current-balance driving circuit having a current-balance coil set, a switching unit, and a control circuit is provided. The current-balance coil set has at least a first coil and a second coil, which are in connection with a respective LED string for balancing the current flows on the LED strings. The switching unit and the leakage inductance of current-balance coil set are utilized to facilitate voltage conversion operation for driving the LED strings. The duty cycle of the switching unit is controlled by the control circuit according to the current flows on the LED strings.
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subjects ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
title LED current balance driving circuit
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