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Multi-output voltage-reduction type conversion device with controllable energy release function

A technology for energy release and conversion devices, which is applied in the direction of output power conversion devices and electrical components, and can solve problems such as main output voltage jumping up and failure to shut down normally

Inactive Publication Date: 2011-07-20
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] How to design a multi-output step-down conversion device with a controllable energy release function under the use of multiple output power supplies provided by the power supply. When the multi-output step-down conversion device is shut down, it can effectively eliminate the The problem that the main output voltage of the multi-group output step-down conversion device bounces up and solves the situation that cannot be shut down normally is the technical problem to be overcome and solved by the present invention

Method used

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  • Multi-output voltage-reduction type conversion device with controllable energy release function
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  • Multi-output voltage-reduction type conversion device with controllable energy release function

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Embodiment Construction

[0054] Relevant technical content and detailed description of the present invention, cooperate accompanying drawing to illustrate as follows:

[0055] See Figure 1A and Figure 1B, respectively are the circuit diagram of the first embodiment of the multi-output step-down conversion device with controllable energy release function of the present invention and the shutdown timing diagram of the multi-output step-down conversion device of the first embodiment. The multi-output step-down conversion device includes a main step-down converter 80 and at least one auxiliary step-down converter for providing multiple sets of output power. In this embodiment, two sets of auxiliary step-down converters are taken as an example for illustration. That is, the multi-set output step-down conversion device includes a first auxiliary step-down converter 10 and a second auxiliary step-down converter 20 . The main buck converter 80 has a main output terminal Vo1 for providing a main output vol...

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Abstract

The invention relates to a multi-output voltage-reduction type conversion device with a controllable energy release function. The multi-output voltage-reduction type conversion device comprises a main voltage-reduction type converter and at least one auxiliary voltage-reduction type converter for offering a plurality of output power supplies. The multi-output voltage-reduction type conversion device further consists of an energy release unit and an abnormal voltage signal generation unit. When the multi-output voltage-reduction type conversion device shuts down, the abnormal voltage signal generation unit can generate a control signal for controlling a switching element of the energy release unit to close, so as to release energy stored by the auxiliary voltage-reduction type converter via the energy release unit, and prevent the stored energy from returning to the main voltage-reduction type converter to result in sudden rise of a main output voltage.

Description

technical field [0001] The invention relates to a step-down conversion device, especially a multi-output step-down conversion device with a controllable energy release function. Background technique [0002] In the computer system application technology, due to the load requirements of the computer system, there is usually not only a single output. Therefore, in order to provide multiple sets of output power, the power supply usually uses a step-down converter to reduce the original single output voltage to the required output. The voltage value, in order to achieve the requirements of multiple sets of output. When the power supply provides multiple sets of stable outputs and cooperates with the timing actions that meet the requirements of the motherboard, the computer system can operate normally. However, due to the natural characteristics of the step-down converter, the roles played by the input terminal and the output terminal will be reversed when the power is turned of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32
Inventor 罗正益林国荣
Owner DELTA ELECTRONICS INC
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