Method for reducing standby power consumption of resonant plasma display power supply
A technology for plasma display and standby power consumption, applied in static indicators, instruments, etc., can solve the problems of limited output power, inability to meet the power supply requirements of plasma displays, and large standby power consumption of plasma displays.
Inactive Publication Date: 2008-02-20
四川世纪双虹显示器件份有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At present, most plasma display power supplies generally adopt forward and flyback output schemes when the display screen is small. The structure is simple and the performance is reliable, but the output power is limited, which cannot meet the power supply requirements of plasma displays with larger screens.
For a few resonant topology structures adopted to meet the power supply requirements of large-screen plasma displays, the scheme that the standby circuit supplies power to the main output circuit control chip is adopted. These schemes make the standby power consumption of the plasma display relatively large. The schematic block diagram is as follows Figure 1
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] As shown in Figure 2, the power supply part includes the commonly used main output control chip of the power supply, which is interconnected with the main output circuit of the power supply, and also includes the standby circuit of the power supply. The standby circuit of the power supply is not connected with the main output control chip of the power supply. The chip and the interface standby circuit are connected. In standby mode, the control relay K is disconnected, the main output control part of the power supply, including the PWM Controller, is in a non-powered state, and does not work, and the main output part, including the transformer T1 and the three-terminal regulator 7815, do not work, so that the There is no fundamental electrical connection in the standby part of the power supply, and the power consumption of any standby circuit will not be consumed when the main circuit of the power supply is not working. When the main output is required to work, the cont...
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
Login to View More Abstract
The disclosed method to reduce resonance-type plasma display power standby consumption comprises: adding an auxiliary output coiling to original output loop to lead input voltage after adjusted by PFC power factor and generate working power for a PWM controller through a T-shape stabilizer; thereby, on standby state, reducing power to zero; when need to provide power, attracting the relay, conducting circuit, using the SCR to provide soft-startup voltage for PWM control chip, and providing the voltage VCC from an auxiliary coiling to the control chip, and turning off the SCR. This invention has better energy-saving effect.
Description
technical field [0001] The method belongs to the technical field of gas discharge and relates to a plasma display power supply, in particular to a method for reducing the standby power consumption of a resonant plasma display power supply, which can reduce the standby power consumption of the plasma display. Background technique [0002] Plasma display is a display device that uses ultraviolet light generated by gas discharge in the display unit to excite phosphor powder coated in the display unit to emit light to display information. [0003] At present, most plasma display power supplies generally adopt forward and flyback output schemes when the display screen is small. The structure is simple and the performance is reliable, but the output power is limited, which cannot meet the power supply requirements of plasma displays with larger screens. For a few resonant topology structures adopted to meet the power supply requirements of large-screen plasma displays, the scheme ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G3/20
Inventor 孙攀峰唐蕾刘汉那威
Owner 四川世纪双虹显示器件份有限公司