Differential output double-path LED lamp control circuit and implementation method thereof

The invention discloses a differential output double-path LED lamp control circuit, which is characterized in that a DC/DC dimming drive circuit is connected with a first half-bridge drive circuit and a second half-bridge drive circuit, a microprocessor circuit is connected with the DC/DC dimming dr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WENG BUSHENG, YE FEI, LU QI, WU BINQIANG, CHEN XINPING, GUO XUEMEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a differential output double-path LED lamp control circuit, which is characterized in that a DC/DC dimming drive circuit is connected with a first half-bridge drive circuit and a second half-bridge drive circuit, a microprocessor circuit is connected with the DC/DC dimming drive circuit, the microprocessor circuit is connected with a signal conversion circuit, and the signal conversion circuit is connected with a power supply circuit. A PWM3 output end of the signal conversion circuit is connected with a dimming input pin of the first half-bridge driving circuit, a PWM4 output end of the signal conversion circuit is connected with a dimming input pin of the second half-bridge driving circuit, and output ends of the first half-bridge driving circuit and the second half-bridge driving circuit are respectively connected with the light source circuit; the invention further discloses an implementation method of the differential output double-path LED lamp control circuit. Compared with a tr