Power supply module

By using a combination of inductor circuit, switch circuit and detection drive circuit in the power module, the feedback circuit is simplified, solving the problem of complex feedback circuits in traditional power modules, reducing the circuit area and the number of metal layers, improving production efficiency and applicability.

CN101567627AInactive Publication Date: 2009-10-28STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO
Filing Date
2008-04-21
Publication Date
2009-10-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The feedback circuitry in traditional power modules is complex, resulting in a complex motherboard layout, long production time, and unsuitable for small computer devices. The feedback circuitry needs to be simplified to reduce the circuit area and the number of metal layers.

Method used

Using a combination of inductor circuit, switch circuit, detection drive circuit and controller, the voltage feedback line is fed back to the detection drive circuit, and a current feedback signal is generated and controlled by the controller. This simplifies the feedback line to the controller and reduces the circuit area and Number of metal layers.

Benefits of technology

The feedback circuit of the power module is simplified, the circuit area and the number of metal layers are reduced, the production efficiency and applicability are improved, and it is suitable for small computer devices.

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Abstract

The invention relates to a power supply module which comprises an inductance circuit, a switch circuit, a check driving circuit and a controller, wherein the inductance circuit is provided with an inductor and a voltage feedback line, and the voltage feedback line feeds back the end voltage of the inductor. The switch circuit is electrically connected with the inductance circuit to drive the inductance circuit. The check driving circuit is electrically connected with the switch circuit and the voltage feedback line, and the check driving circuit controls the switch circuit and generates a current feedback signal according to the end voltage of the inductor. The controller is electrically connected with the check driving circuit, and controls the check driving circuit according to the current feedback signal.
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Citation Information

Cited By

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