BOOST drive circuit, drive device and LED (light emitting diode) liquid crystal module

BOOST drive circuit, drive device and LED (light emitting diode) liquid crystal module

The utility model is applicable to the power supply field and provides a BOOST drive circuit, a drive device and an LED (light emitting diode) liquid crystal module, wherein the BOOST drive circuit comprises a boost inductor L, a Schottky diode D, a filter capacitor C1, a filter capacitor C2, a work...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: BI QUANWU
Format: Patent
Sprache:chi ; eng
Schlagworte:
ADVERTISING
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRICITY
GENERATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:The utility model is applicable to the power supply field and provides a BOOST drive circuit, a drive device and an LED (light emitting diode) liquid crystal module, wherein the BOOST drive circuit comprises a boost inductor L, a Schottky diode D, a filter capacitor C1, a filter capacitor C2, a working resistor R1, a working resistor R2, a high-voltage drive MOS tube Q21 and an MOS (metal oxide semiconductor) tube Q22. For the utility model, two common MOS tubes with more mature technology are used for replacing a low-voltage drive MOS tube, firstly, one MOS tube boosts input signals from being in low voltage, and then the signals after being boosted are used for driving the high-voltage MOS tube. Compared with the BOOST drive circuit directly using the low-voltage to drive the high-voltage MOS tube as a switching tube, the BOOST drive circuit can achieve the same effect with less technical risk and lower cost.