Variable voltage driving circuit

A driving circuit and voltage technology, which is applied in the field of variable voltage driving circuits, can solve the problems of changing accordingly, limiting the decorative effect of LED light strings, affecting the brightness state of LED decorative light strings, etc., and achieving the effect of ensuring safe use

Inactive Publication Date: 2017-07-11
NINGBO DIMINGSI ELECTRONICS
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The practice of full parallel or full series limits the decorative effect of LED light strings
When the LED light string made by the mixed connection method can effectively ensure the consistency of the LED brightne

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
  • Variable voltage driving circuit
  • Variable voltage driving circuit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Such as Figure 1-2 As shown, the present invention provides a variable voltage drive circuit. The drive circuit (4) includes a single-chip microcomputer (5), a boost circuit (7), a detection circuit (2) and a light string (3). (5) The output signal, the detection circuit (2) the feedback signal, and the single-chip microcomputer (5) calculate and adjust the signal to make the booster circuit (7) output the operating voltage of 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 variable voltage driving circuit comprising a single-chip microcomputer, a voltage step-up circuit, a detection circuit, a protection circuit and a lamp string. When rated power of the driving circuit is not exceeded, the driving circuit can be used for driving LED lamp strings of all kinds of power and all kinds of connection modes, and working voltage needed for driving the lamp string of the driving circuit can be provided via control of the single-chip microcomputer, a voltage transformation circuit and the detection circuit according to LED lamp string load change.

Description

technical field [0001] The invention relates to the field of lamps, in particular to a variable voltage drive circuit. Background technique [0002] With the progress of the times and the development of science and technology, the application of LED light strings has been widely used in home decoration, festive atmosphere, city lighting and entertainment places. Compared with traditional decorative lights, LED light strings have lower energy consumption, gorgeous colors, and can realize color changes, and can be arbitrarily cut according to actual decoration needs to meet people's auxiliary lighting and decoration needs. Generally speaking, the driving methods of LED light strings currently on the market are divided into two types: constant voltage drive and constant current drive; when the constant voltage is driven, the output voltage remains constant, and when the load of the LED light string changes, the loop current changes accordingly. The output voltage of the consta...

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): H05B33/08H05B44/00
CPCH05B45/00H05B45/37Y02B20/30
Inventor 贾卫国程思明
Owner NINGBO DIMINGSI ELECTRONICS
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