Frequency and voltage convertor

A technology of voltage converter and voltage memory, which is applied in the direction of logic circuit connection/interface layout, logic circuit coupling/interface using field effect transistors, etc. It can solve the problems affecting the accuracy of frequency conversion to voltage conversion, and achieve the elimination of switch overshoot Effect

Active Publication Date: 2014-11-19
SAMSUNG SEMICON CHINA RES & DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently used frequency-to-voltage converters are easily affected by the process, power supply voltage, and ambient temperature during operation, which affects the conversion accuracy of converting frequency to voltage.

Method used

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  • Frequency and voltage convertor

Examples

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Embodiment Construction

[0023] Various example embodiments will now be described more fully with reference to the accompanying drawings, in which some example embodiments are shown, wherein like numerals refer to like parts throughout.

[0024]figure 1 A circuit diagram of a frequency-to-voltage converter according to an exemplary embodiment of the present invention is shown.

[0025] like figure 1 As shown, the circuit 100 of the frequency-to-voltage converter according to the present invention includes: a constant current source Ic, a first switch SW1, a second switch SW2, a third switch SW3, a fourth switch SW4, a fifth switch SW5, a first voltage storage C1, the second voltage storage C2, and the third voltage storage C3.

[0026] The first connection end of the first switch SW1 is connected to the constant current source Ic, the second connection end of the first switch SW1 is grounded, the first connection end of the second switch SW2 is connected to the constant current source Ic, and the sec...

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PUM

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Abstract

The invention provides a frequency and voltage convertor. The frequency and voltage convertor comprises a constant-current source, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a first voltage storage, a second voltage storage and a third voltage storage, wherein the first switch, the second switch, the third switch, the fourth switch and the fifth switch are switched on or switched off under the control of a first clock signal, a second clock signal, a third clock signal, a fourth clock signal and a fifth clock signal, so that voltages corresponding to the input clock signals are generated.

Description

technical field [0001] The present invention relates to a converter, and more particularly to a frequency-to-voltage converter. Background technique [0002] Frequency-to-voltage converters are widely used in the control process of control equipment such as speed sensors, tachometers, and cruise control. Therefore, the conversion accuracy of the frequency-to-voltage converter directly affects the control accuracy of the control equipment. However, currently used frequency-to-voltage converters are easily affected by process, power supply voltage, and ambient temperature during operation, thereby affecting the conversion accuracy of converting frequency to voltage. [0003] Therefore, there is a need for a frequency-to-voltage converter with high conversion accuracy. Contents of the invention [0004] The object of the present invention is to provide a frequency-to-voltage converter, thereby improving the conversion accuracy of converting frequency into voltage. [0005]...

Claims

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Application Information

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IPC IPC(8): H03K19/0185
Inventor 朱军
Owner SAMSUNG SEMICON CHINA RES & DEV
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