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

A power output control circuit and a multi-layer power supply system

A power supply output and control circuit technology, applied in control/regulation systems, output power conversion devices, DC power input conversion to DC power output, etc., can solve problems such as large starting current, long starting time, and unclear starting sequence , to achieve stable output voltage, improve start-up capability, clear and reliable start-up sequence

Active Publication Date: 2017-01-04
MORNSUN GUANGZHOU SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Another technical problem to be solved by the present invention is to provide a multi-layer power supply system using the above-mentioned power output control circuit to overcome the unclear starting sequence of the front and rear power supply circuits in the multi-layer power supply system in the prior art. Big, long startup issues

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 power output control circuit and a multi-layer power supply system
  • A power output control circuit and a multi-layer power supply system
  • A power output control circuit and a multi-layer power supply system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] like Figure 5 As shown, the power supply output control circuit B of the present invention is arranged between the output end of the power supply circuit A and the load, and is composed of a switch tube and a detection control circuit with a preset voltage value, and the switch tube is connected in series with the output of the power supply circuit A. Between the terminal and the load, the detection control circuit detects the output voltage of the power supply circuit A, and controls the switch tube to turn off when the output voltage is lower than the preset voltage value, and controls the switch tube when the output voltage is above the preset voltage value. on. Among them, the load can be a current type load or a resistance type load, and a large capacitor can be connected in parallel.

[0049] Figure 7 The power output control circuit B according to the first embodiment of the present invention is shown. The switch tube is a PNP transistor Q1, the detection con...

no. 1 example approach

[0055]When the existing solution is adopted, the power supply circuit is directly connected to the load circuit, and the power supply output control circuit is not connected in the middle. Since the voltage cannot rise rapidly when the output load has a capacitor, in order to show the difference in the start-up sequence of the first embodiment of the present invention compared with the existing solution, an ordinary DC power supply with a start-up time of about 8mS is used to power the power supply circuit. The startup waveform of the existing power control scheme is as follows Figure 8 shown. The start-up waveform when the power supply control scheme of the first embodiment of the present invention is adopted is as follows Figure 9 shown. In the figure, waveform 1 is the change waveform of the power supply voltage, and waveform 2 is the change waveform of the load voltage. It can be seen from the start-up waveform diagram that in the existing solution, with the establish...

no. 1 example

[0057] In order to illustrate the startup capability of the power supply under the solution of the first embodiment of the present invention, the input voltage of the power supply is stepped up and the output voltage waveform of the power supply is tested to illustrate the difference between the first embodiment of the present invention and the existing solution. The test waveform of the existing scheme is as follows Figure 10 , the test waveform of the first embodiment of the present invention is as follows Figure 11 . In the figure, waveform 1 is the voltage change waveform of the power supply, and waveform 2 is the voltage change waveform of the power supply under test. Figure 10 In the process of establishing the load voltage of the power supply, it first rises rapidly, then slowly rises, and then rises rapidly after approaching the output voltage of the power supply. Changes in the rate of voltage rise indicate that the output current capability of the power supply i...

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 power output control circuit which is arranged between the output end of a power circuit and a load. The power output control circuit is characterized in that the power output control circuit is composed of a switch tube and a detection control circuit set with the preset voltage value, the switch tube is connected between the output end of the power circuit and the load in series, the detection control circuit detects the output voltage of the power circuit, when the output voltage is lower than the preset voltage value, the switch tube is controlled to be turned off, and when the output voltage exceeds the preset voltage value, the switch tube is controlled to be turned on. The power output control circuit has the technical advantages that the supply voltage establishing time taken to supply power to the load through the power circuit can be adjusted, and the starting capability of the self-oscillation power circuit is improved. A back-level power source can be easily and reliably started until a pre-level power source is completely started, and the accurate and reliable starting time sequence of a multi-layer power supply system starting is guaranteed. The invention further discloses the multi-layer power supply system with the power output control circuit.

Description

technical field [0001] The invention relates to a power output control circuit, and also relates to a multi-layer power supply system applying the power output control circuit. Background technique [0002] The normal operation of electronic equipment is inseparable from the stable and high-quality power supply provided by the power supply equipment. As the integration of electronic devices becomes higher and higher, the functions become more and more diverse, and the power supply system becomes more and more complex. In the design of multifunctional electronic equipment, the design method of unit circuit design and modular assembly is often used. At this time, the power supply system of the equipment also has a multi-level power supply mode following the design idea of ​​the equipment. At the same time, due to the different working voltages of the internal devices of the electronic equipment, power supply systems with multiple voltage levels will also appear within the sa...

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): H02M3/335
Inventor 贾宇锋赵庆红
Owner MORNSUN GUANGZHOU SCI & TECH