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Power supply device with shunt control

A technology for power supply device and control circuit, which is applied to circuit devices, AC/DC network circuit layout, electrical components, etc., to achieve the effect of reducing operating temperature

Inactive Publication Date: 2008-06-25
SYST GEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention does not require additional connection terminals

Method used

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  • Power supply device with shunt control
  • Power supply device with shunt control
  • Power supply device with shunt control

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Embodiment Construction

[0045] To facilitate the description of the spirit of the present invention, a common computer architecture will be used as an example below to illustrate how to realize the shunt function of parallel power supply devices (such as power supplies) without changing the original circuit architecture. In the following embodiments, the existing serial bus interface (serial bus interface) in the computer system will be used as the control interface of the shunt, without additional interfaces or pins. Those skilled in the art can also use a parallel bus interface as a split control interface according to the spirit of the present invention.

[0046] see Figure 4 Shown is a preferred embodiment of the power supply with shunt function according to the present invention. This power supply consists of an input voltage V IN The input terminal, with output voltage V O The output terminal is coupled to the bus terminal of the bus of an external personal computer or central processing un...

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Abstract

This invention relates to power supply equipment and diverting method. The power supply device uses bus end as the diverting control medium face. The power circuit provides output voltage and output current and produces current sensing signal according to the output current. And feedback control circuit controls the power circuit according to the output of the power supply device. And the diffluence control cell produces and outputs bus signal according to the current sensing signal to the bus end, and it produces and outputs the reference signal according to the reference voltage, bus signal and output current to the feedback circuit, which make the feedback circuit adjust the power supply device's output. And the bus communication circuit is to monitor the power supply device..

Description

technical field [0001] The invention relates to a power supply device, in particular to a power supply device which can be connected in parallel with another power supply device to provide a shunt mechanism and a shunt method thereof. Background technique [0002] Power supplies are commonly used in electronic devices and other products to provide adjustable power. see figure 1 Shown is a block diagram illustrating a conventional power supply. Such as figure 1 shown, which includes the unregulated DC input voltage V IN , power circuit 10, adjustable DC output voltage V O with a resistor R A with R B the voltage divider. The power supply further includes a feedback control circuit coupled to the power circuit 10 . The feedback control circuit includes a control unit 20, an error amplifier 30 and a reference voltage V R . DC output voltage V O Connect to the feedback control circuit via a voltage divider. Resistance R A with R B connected in series to the adjusta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J4/00
Inventor 杨大勇
Owner SYST GEN