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

A potential-pwm regulating circuit and automobile lights using the regulating circuit

A - PWM, adjusting circuit technology, applied in vehicle components, optical signals, signal devices, etc., can solve the problems of reducing product performance life, damage, large circuit current, etc., to improve performance and life, improve reliability, and avoid backflow. Effect

Active Publication Date: 2016-09-07
显亮(昆山)汽车配件有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing automotive backlight adjustments are widely used to change the output voltage by changing the resistance value. In this way, the current in the circuit is relatively large, which is easy to cause damage, and when the number of vehicle backlight switches increases, the current will be too small and the lights cannot be turned on. , thereby reducing product performance life

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
  • A potential-pwm regulating circuit and automobile lights using the regulating circuit
  • A potential-pwm regulating circuit and automobile lights using the regulating circuit
  • A potential-pwm regulating circuit and automobile lights using the regulating circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 As shown, the potential-PWM adjustment circuit of this embodiment is composed of a potential adjustment unit, a single-chip microcomputer, a PWM amplification unit and a backlight enabling unit. The single-chip microcomputer receives the potential signal output by the potential adjustment unit and the control signal of the backlight enabling unit. When the backlight When the control signal of the enabling unit is at high level, the single-chip microcomputer calculates and outputs the PWM signal to the PWM amplifying unit according to the potential signal; when the control signal of the backlight enabling unit is at low level, the single-chip microcomputer stops outputting the PWM signal to the PWM amplifying unit.

[0019] In this embodiment, the single chip microcomputer adopts STM8S003F3P6, and its power supply voltage is 5V.

[0020] Such as figure 2 As shown, the potential adjustment unit is composed of a three-terminal potentiometer RP. The two f...

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 aims to provide a potential-PWM regulating circuit and an automotive lamp with the same and solve the defects that a resistance-type regulating circuit is prone to damage, and the operation of an automotive lamp is influenced by excessively large common current. The circuit comprises a potential regulating unit, a single chip processor and a PWM amplification unit; the single chip processor receives potential signals output by the potential regulating unit and calculates and outputs PWM signals to the PWM amplification unit according to the potential signals; the PWM amplification unit amplifies the PWM to improve the lamp body drive capability. According the circuit, the backlight voltage is controlled by the single chip processor effectively, a potentiometer inputs the potential signals with small current only, damage is avoided, the normal operation of the automotive lamp is not influenced, the performance of the product is improved, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, and in particular relates to a potential-PWM adjustment circuit and an automobile lamp using the adjustment circuit. Background technique [0002] Existing automotive backlight adjustments are widely used to change the output voltage by changing the resistance value. In this way, the current in the circuit is relatively large, which is easy to cause damage, and when the number of vehicle backlight switches increases, the current will be too small and the lights cannot be turned on. , thus reducing the performance life of the product. Contents of the invention [0003] The object of the present invention is to provide a potential-PWM adjustment circuit and an automobile lamp using the adjustment circuit, so as to solve the disadvantages of the resistive adjustment circuit being easily damaged and the common current being too large which affects the operation of the lamp. [0004]...

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 Patents(China)
IPC IPC(8): B60Q1/00
Inventor 陈勇
Owner 显亮(昆山)汽车配件有限公司
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