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Oscillation circuit for realizing adjustable duty ratio and frequency based on OTA

An oscillating circuit and duty cycle technology, applied in power oscillators, electrical components, etc., can solve the problems of low power consumption, fast response, inability to adjust the duty cycle and frequency of the oscillating signal, and achieve low power consumption and fast response. , the effect of improving stability and reliability

Active Publication Date: 2015-09-16
江苏尊阳电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional oscillating circuits have the disadvantages of being unable to adjust the duty cycle and frequency of the oscillating signal, and having low power consumption and fast response

Method used

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  • Oscillation circuit for realizing adjustable duty ratio and frequency based on OTA
  • Oscillation circuit for realizing adjustable duty ratio and frequency based on OTA
  • Oscillation circuit for realizing adjustable duty ratio and frequency based on OTA

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Embodiment Construction

[0016] see figure 1 , the present invention relates to an oscillation circuit based on OTA to realize duty ratio and frequency adjustable, which includes capacitor charging and discharging circuit structure, OTA (operational transconductance amplifier referred to as OTA, Chinese is operational transconductance amplifier) ​​circuit structure and digital control circuit structure. The OTA circuit structure is used to compare the input terminals. The comparison results affect the charging and discharging of the capacitor in the capacitor charging and discharging circuit structure to obtain an oscillating output signal. The digital control circuit structure determines whether the entire oscillating circuit works and can adjust the duty cycle and frequency of the oscillating signal. .

[0017] see figure 2 , the OTA circuit structure includes PM1~PM7 (PMOS tubes) and NM1~NM4 (NMOS tubes), wherein the positive input terminal inp of the OTA circuit structure is connected to Vref, ...

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Abstract

The invention relates to an oscillation circuit for realizing adjustable duty ratio and frequency based on an OTA. The oscillation circuit comprises a capacitor charge and discharge circuit structure, an OTA circuit structure and a digital control circuit structure. Comparison of input ends is realized by utilizing the OTA circuit structure. The comparison result influences charge and discharge of a capacitor in the capacitor charge and discharge circuit structure so that an output signal of oscillation is obtained. The digital control circuit structure determines working of the whole oscillation circuit and can adjust duty ratio and frequency of an oscillation signal. The oscillation circuit for realizing adjustable duty ratio and frequency based on the OTA has advantages that duty ratio and frequency of the oscillation signal can be adjusted, power consumption is low and response is fast.

Description

technical field [0001] The invention relates to an oscillating circuit with duty cycle and frequency adjustable based on OTA. Background technique [0002] The traditional oscillating circuit has the disadvantages that the duty cycle and frequency of the oscillating signal cannot be adjusted, and the power consumption is low and the response is fast. Therefore, it is particularly important to seek an oscillator circuit that can adjust the duty cycle and frequency of the oscillating signal, has low power consumption and fast response, and realizes the duty cycle and adjustable frequency based on OTA. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide an oscillator circuit with adjustable duty cycle and frequency based on OTA that can adjust the duty cycle and frequency of the oscillation signal, has low power consumption and fast response. [0004] The purpose of the present invention is achieved like ...

Claims

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Application Information

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IPC IPC(8): H03B5/04
Inventor 吕坚周云诸伟全庆霄殷忠王辉余骏华董春
Owner 江苏尊阳电子科技有限公司