High-voltage power supply system with enable control

A high-voltage power supply, high-voltage startup technology, applied in high-efficiency power electronic conversion, power reduction through control/clock signals, electrical components, etc. Standby power consumption, increased application flexibility, the effect of ultra-low standby input power consumption

Inactive Publication Date: 2016-07-27
WUXI CHIPOWN MICROELECTRONICS
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nevertheless, the power supply system using this high-voltage startup circuit has the problem of high standby input power consumption (higher than 50mW) or high standby input current (higher than 300uA) because the high-voltage startup circuit and the power supply are in the working state during standby.
Wastes energy and is not suitable for applications that require very little standby input power consumption or very little standby input current

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-voltage power supply system with enable control
  • High-voltage power supply system with enable control
  • High-voltage power supply system with enable control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Such as image 3 As shown, the high-voltage power supply system with enable control includes a high-voltage start-up circuit 1, a PWM control module 2 and a drive module 3. The high-voltage start-up circuit 1 includes a first transistor M1, a third transistor M3, a fourth transistor M4, a resistor R1, Diode D1, VDD detection unit 101 and I / O interface unit 102, the drain of the first transistor M1 is connected to the first end of the resistor R1 and the HV pin, the gate of the first transistor M1 is connected to the second end of the resistor R1, and the cathode of the diode D1 , the drain of the third transistor M3, and the drain of the fourth transistor M4 are connected, the source of the first transistor M1 is connected to the input terminal of the VDD detection unit 101, the VDD pin and the VDD capacitor C1, and the anode of the diode D1 is connected to the third transistor The source of M3 and the source of the fourth transistor M4 are connected and connected to th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-voltage power supply system with enable control. The high-voltage power supply system comprises a high-voltage starting circuit, a PWM control module and a drive module, wherein the high-voltage starting circuit comprises a first transistor, a third transistor, a fourth transistor, a resistor, a diode, a VDD detection unit and an I/O interface unit; the high-voltage starting circuit is controlled by an input of an EN pin; when the EN pin is set, the working state of the high-voltage starting circuit is shielded and the power supply system is shut down, is not restarted and enters a zero stand-by state; and when the EN pin is reset, the high-voltage starting circuit returns to work and the power supply system is restarted and enters a normal working state. The high-voltage starting circuit power supply system with enable control has the characteristic that standby input power consumption and input current of the system are close to zero.

Description

technical field [0001] The invention relates to a high-voltage power supply system with enabling control, which is suitable for switching power supply chips and belongs to the technical field of power semiconductors. Background technique [0002] Currently, high-voltage start-up circuits such as figure 1 As shown, it includes a transistor M1, a resistor R1, a diode D1 and a VDD detection unit. The connection relationship is: the drain of transistor M1 is connected to the first end of resistor R1 and the HV pin, the gate of transistor M1 is connected to the second end of R1, the cathode of diode D1, and the drain of transistor M3, and the source of transistor M1 is connected to VDD detection The input end of the unit 101 is connected to the VDD pin and the VDD capacitor C1, and the anode of the diode D1 is connected to the source of the transistor M3 and connected to the power ground. The gate of the transistor M3 is connected to the output terminal of the VDD detection uni...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/08
CPCH02M1/08H02M1/0032H02M1/36H03K17/223H03K19/0016H02M1/0006Y02B70/10H03K3/02337H03K7/08H03K2217/0036
Inventor 李海松赵倡申刘文亮吴之俊易扬波
Owner WUXI CHIPOWN MICROELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap