Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Energy-saving environment protection type power IC with overshoot output prevention

An energy saving, environmental protection, integrated circuit technology, applied in the output power conversion device, energy industry, electrical components and other directions, can solve the problems of large output overshoot, strong electromagnetic radiation and electromagnetic interference, shock oscillation, etc., to achieve the speed of opening and closing Fast, strong output driving ability, small electromagnetic interference effect

Active Publication Date: 2006-11-15
WUXI CRYSTAL SOURCE MICROELECTRONICS CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a large overshoot, which leads to serious shock oscillation, relatively strong electromagnetic radiation and electromagnetic interference, large output overshoot, and easy damage to the switch tube, which reduces the reliability of the system.
Some foreign companies reduce the overshoot by reducing the output driving capability of PFC and PWM, so that the opening and closing speed of the output tube is low, which greatly reduces the conversion efficiency of the system

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
  • Energy-saving environment protection type power IC with overshoot output prevention
  • Energy-saving environment protection type power IC with overshoot output prevention

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The circuit is composed of a control signal input module 1, an output push module 2, an output module 3, an output detection module 4, and a push control module 5.

[0010] A schematic circuit diagram is given here ( figure 2 ), where the regulated voltage values ​​of Zener diodes Z1, Z2, and Z3 are all 5.0V. The resistor R1 is 2.0KΩ, R2 is 20KΩ, R3 is 6KΩ, R4 is 12KΩ, the β of the NPN tube is 100, and the β of the PNP tube is 45.

[0011] The output end of the pulse wave shaper 11 in the control signal input module 1 is respectively connected to the input end of the inverter 21 and the lower pipe pusher 23, the output end of the lower pipe pusher 23 is connected to the input end of the lower output pipe 32, and the upper pipe pusher 23 is connected to the input end of the lower output pipe 32. The output end of the pusher 22 is connected to the input end of the upper output tube 31, and the output ends of the upper output tube 31 and the lower output tube 32 are conn...

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 overshoot output prevention power supply circuit with power factor correction (PFC) and the pulse width modulation (PWM), relates to the output driving, it belongs to the PFC and the PWM output domain of the environmental protection power. It has many merits such as the little output overshoot (or without the over clash), the little disturb of the electromagnetism radiate, the high system switching efficiency, the stabilization of the output and the high reliability. The output of the outputting module (3) connect the first measuring machine (41), the second output measuring machine (42), the third output measuring machine (43) of the output measuring module (4), the output of the first output measuring machine (41) connects the pushing controlling module (5) to close the process controlling machine(51), the second output measuring machine (42) connects the unlocking process controlling machine(52) of the pushing controlling module (5), the output of the third output measuring(43) connects the unlocking fulfilling controlling machine(53) of the pushing controlling module(5), shutting the output of the process controlling machine(51) connects the below duct driving machine(23) of the output pushing module(2), the output of the unlocking process machine(52) and the unlocking fulfilling controlling machine(53) are connected to connect the above duct driving machine(22) of the output pushing module(2).

Description

technical field [0001] The invention is a power supply integrated circuit with power factor correction (PFC) and pulse width modulation (PWM) output overshoot prevention. It mainly involves the output driving part, and belongs to the field of PFC and PWM output driving of energy-saving and environment-friendly power supply. Background technique [0002] At the present stage, the PFC and PWM output drivers of domestic and foreign power supply integrated circuits do not have this kind of anti-overshoot function. There is a large overshoot, which leads to serious shock oscillation, relatively strong electromagnetic radiation and electromagnetic interference, large output overshoot, and easy damage to the switch tube, which reduces the reliability of the system. Some foreign companies reduce the overshoot by reducing the output driving capability of PFC and PWM, so that the opening and closing speed of the output tube is low, which greatly reduces the conversion efficiency of t...

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
IPC IPC(8): H02M1/08H03K17/00H03K17/04H03K17/0416H03K17/042
CPCY02P80/10
Inventor 朱伟民雍广虎聂卫东陈东勤张艳丽
Owner WUXI CRYSTAL SOURCE MICROELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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