Unlock instant, AI-driven research and patent intelligence for your innovation.

Semi bridge type inversion circuit for driving dual NMOS by using push-pull control chip

A control chip, push-pull technology, used in output power conversion devices, conversion of AC power input to DC power output, electrical components, etc.

Inactive Publication Date: 2008-09-24
LIEN CHANG ELECTRONICS ENTERPRISE
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the use of the inverter circuit (Inverter Circuit) is often limited to the control chip, and the inverter circuit (Inverter Circuit) is subject to the above description, so that the control chip cannot be shared and purchased in a unified manner, or it needs to be matched. more complex circuits

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
  • Semi bridge type inversion circuit for driving dual NMOS by using push-pull control chip
  • Semi bridge type inversion circuit for driving dual NMOS by using push-pull control chip
  • Semi bridge type inversion circuit for driving dual NMOS by using push-pull control chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Please refer to Figure 5, which is a schematic circuit diagram of the present invention, wherein the present invention uses a push-pull control chip to drive a double N-MOS half-bridge commutation circuit, which is connected to the primary side of a transformer T2 to convert a DC The power supply Vcc is converted into an alternating current power supply AC, and the alternating current power supply AC passes through the transformer T2 to provide the energy required for the load to work. In the above description, the peak-to-peak value of the alternating current power supply AC is the direct current power supply Vcc.

[0034] Referring again to Fig. 5, the present invention utilizes a push-pull control chip to drive a double N-MOS half-bridge commutation circuit, including: a push-pull control chip 103, a drive circuit 304, a half-bridge switch assembly 302 and two Capacitors (C2, C3). Wherein, the push-pull control chip 103 is provided with two output terminals A and B ...

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 includes following parts: a push-pull type control chip including two output ends; a driving circuit including two input ends and two output ends, the two input ends are connected to two output ends of the push-pull type control chip to take control from the control chip; a semi bridge type switch module is composed of a field effect transistor (FEF) with a first N channel and a FEF with a second N channel; a control end is setup at each FEF with a N channel; the control ends are controlled to two output ends of the drive circuit. Drive from the drive circuit is in use for switching DC power source to AC power source, which is transferred to primary side of transformer.

Description

technical field [0001] The invention relates to a half-bridge commutation circuit driven by a push-pull control chip, in particular to a half-bridge switch component composed of two N-channel field-effect transistors that can be controlled by a push-pull type, thereby A converter circuit that drives a load. Background technique [0002] The power supply (Power Supply) of the TFT panel backlight mainly uses the inverter circuit (Inverter Circuit) to achieve energy conversion and drive the light emission of the cold cathode fluorescent lamp (CCFL). The common inverter circuit (Inverter Circuit) is different due to the circuit topology. Generally, there are half-bridge commutation circuits, full-bridge commutation circuits and push-pull commutation circuits, etc., which are commutation circuits that convert direct current into alternating current. [0003] Please refer to figure 1 , which is a circuit schematic diagram of a common push-pull commutation circuit driving a load....

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): H02M7/538H02M7/5387
Inventor 陈振刚王政雄
Owner LIEN CHANG ELECTRONICS ENTERPRISE