Flyback light emitting diode (LED) switching voltage stabilization driving power supply based on power factor correction circuit
A technology for power factor correction and driving power supply, applied in the field of electronics, can solve the problems of low power factor, low efficiency, low current control accuracy, etc., and achieve the effects of improving power factor, reducing power consumption, and high driving efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0022] Such as figure 1 As shown, the present invention mainly consists of a control chip U2, a diode rectifier U1, a transformer T, a triode VT1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a thermistor RT, a polar capacitor C1, a polar capacitor C2, and a diode D1 , A power factor correction circuit, an operational amplifier circuit, a first-stage flyback circuit, and a constant current drive circuit.
[0023] During implementation, the anode of the polarity capacitor C1 is connected to the negative output terminal of the diode rectifier U1, and its negative terminal is connected to the positive output terminal of the diode rectifier U1. One end of the resistor R1 is connected to the base of the triode VT1, and the other end is connected to the negative electrode of the polarity capacitor C1. The anode of the polarity capacitor C2 is connected to the anode output terminal of the diode rectifier U1 through the resistor R2, and its cathode is connected to the ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com