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Amplified circuit capable of dynamic regulating supply voltage

A technology for supplying voltage and amplifying circuits, which is applied in the field of amplifying circuits that dynamically adjust the supply voltage, can solve the problems of energy waste and low efficiency of amplifier energy use.

Active Publication Date: 2010-10-27
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Amplifiers are commonly used circuit components, however, typical amplifiers do not use energy efficiently
Generally speaking, the energy provided by the supply voltage cannot and will not be fully used to drive the amplifier to output the required output signal according to the input signal, and a lot of energy will be wasted

Method used

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  • Amplified circuit capable of dynamic regulating supply voltage
  • Amplified circuit capable of dynamic regulating supply voltage
  • Amplified circuit capable of dynamic regulating supply voltage

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Embodiment Construction

[0017] In order to have a further understanding and recognition of the present invention, a detailed description will now be given in conjunction with the accompanying drawings.

[0018] figure 1 It is a block diagram of a preferred embodiment of the amplifying circuit of the present invention. Such as figure 1 As shown, the amplifying circuit 1 includes an amplifier 10 , a switched capacitor voltage converter 11 and a control device 12 . The switched capacitor voltage converter 11 is coupled to the amplifier 10, and can receive a voltage source V dd , converted into a supply voltage and sent to the amplifier 10. If the gain of the switched capacitor voltage converter 11 is G, the supply voltage is G*V dd ,as the picture shows. The switched capacitor voltage converter 11 can also dynamically adjust its gain G according to a control signal, which will be described in more detail later.

[0019] The control device 12 can generate the control signal to the switched capacito...

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PUM

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Abstract

An amplifying circuit enabling to dynamically regulate supply voltage consists of a switching over capacity voltage converter for selecting size of supply voltage by switching - over , a control unit being coupled on input end or output end of amplifier and being used to generate a control signal to voltage converter on switching over capacity according to amplifier input signal to output signal .

Description

technical field [0001] The invention relates to an amplifying circuit, in particular to an amplifying circuit which utilizes a switched capacitor voltage converter to dynamically adjust the supply voltage. Background technique [0002] Amplifiers are commonly used circuit components, however, typical amplifiers do not use energy efficiently. Generally speaking, the energy provided by the supply voltage cannot and will not be fully used to drive the amplifier to output the required output signal according to the input signal, and a lot of energy will be wasted. [0003] In view of this, the focus of the present invention is to propose an amplifying circuit that can dynamically adjust the supply voltage of the amplifier by using a switched-capacitor voltage converter (switched-capacitorvoltage converter) according to the input or output signal of the amplifier, so as to improve the energy Use efficiency. Contents of the invention [0004] One of the objectives of the prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03G3/20
Inventor 李朝政陈宗明冯介民
Owner REALTEK SEMICON CORP