Apparatus and method for adjusting decompression change-over circuit working frequency by detection temperature

A technology of step-down conversion and operating frequency, which is applied in the direction of measuring devices, data processing power supplies, and measurement flow/mass flow, etc., can solve the problem of large power consumption of step-down conversion circuits, and achieve the effect of avoiding energy waste and controlling power consumption

Inactive Publication Date: 2009-05-27
INVENTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] One of the purposes of the present invention is to provide a device for adjusting the operating frequency of the step-down conversion circuit by detecting the temperature, so as to solve the above-mentioned shortcoming of excessive power consumption of the step-down conversion circuit

Method used

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  • Apparatus and method for adjusting decompression change-over circuit working frequency by detection temperature
  • Apparatus and method for adjusting decompression change-over circuit working frequency by detection temperature
  • Apparatus and method for adjusting decompression change-over circuit working frequency by detection temperature

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Embodiment Construction

[0021] See figure 1 , which is a structural diagram of a device for adjusting the operating frequency of a step-down conversion circuit by detecting temperature according to an embodiment of the present invention.

[0022] The device 101 for adjusting the operating frequency of a step-down conversion circuit by detecting temperature in this embodiment includes a temperature control module 103 , a variable module 107 and a controller 105 . The temperature control module 103 is used to detect the temperature of the CPU (Central Processing Unit) 111, judge the current output load state of the VRD 109 through the obtained current CPU 111 temperature, and output a control signal according to the output load state. The variable module 107 is coupled to a VRD (voltage-reducing conversion circuit) 109 to provide an external resistor for the VRD 109 . The controller 105 is coupled to the temperature control module 103 and the variable module 107 to receive the control signal, and adju...

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Abstract

The invention discloses a device for adjusting working frequency of a step down converting circuit through detecting temperature, which comprises a temperature control module, a variable module and a controller. The temperature control module is used for detecting the temperature of a central processor, judging the current output load state of the step down converting circuit according to the acquired current temperature of the central processor, and outputting control signals according to the load state. The variable module is coupled to the step down converting circuit for providing an external resistor for the step down converting circuit. The controller is coupled to the temperature control module and the variable module respectively for receiving the control signals and adjusting the resistance value of the variable module according to the control signals in order to adjust the working frequency of the step down converting circuit. The device can reduce the loss of the step down converting circuit.

Description

technical field [0001] The present invention relates to a device and method for adjusting the operating frequency of a step-down conversion circuit, and in particular to a device and method for adjusting the operating frequency of a step-down conversion circuit by detecting temperature and reducing the loss of the step-down conversion circuit. Background technique [0002] Many electronic products now have high power requirements, and it is often necessary to convert the power supply voltage into a higher or lower output voltage and then provide it to the electronic product. VRD (voltage regulator down, step-down conversion circuit) is currently used in general power supplies as a basic voltage regulation circuit. The role of VRD is to output an output voltage smaller than the input voltage and play a role in stabilizing the voltage. VRD is usually used to supply power to the CPU, such as general servers and commonly used home computers. [0003] VRD generally fixes the pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26G06F1/32
Inventor 曾理刘士豪
Owner INVENTEC CORP
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