Direct current feedback regulation control circuit
A feedback regulation and control circuit technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve the problems of inability to flexibly change parameters, inability to quickly change current, inability to generate current waveforms, etc., to achieve low price and economic benefits , highly adjustable effect
Pending Publication Date: 2022-07-12
WUXI WABT EQUIP TECH CO LTD
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Problems solved by technology
Software adjustment is affected by the analog-to-digital conversion speed and software running speed, the response speed is slow, and the current cannot be changed quickly, thus generating complex current waveforms
Although hardware control has a fast response speed, it cannot flexibly change parameters, nor can it generate arbitrary current waveforms.
Method used
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[0031] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the following describes the specific implementation, structure, features and characteristics of the DC current feedback regulation control circuit proposed according to the present invention with reference to the accompanying drawings and preferred embodiments. Its effect is described in detail as follows. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0032] In this embodiment, a DC current feedback adjustment control circuit is provided, such as figure 1 As shown, the DC current feedback adjustment control circuit includes a MCU, a digital potentiometer, a driving modul...
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The invention relates to the technical field of current regulation, and particularly discloses a direct current feedback regulation control circuit, which comprises an MCU, a digital potentiometer, a driving module, a load, a sampling module and a feedback module, and is characterized in that the MCU is connected with the digital potentiometer and the driving module, and the driving module, the load, the sampling module and the feedback module are sequentially connected; the feedback module is also respectively connected with the digital potentiometer and the driving module; the MCU outputs a switching value control signal, converts the reference current into a digital signal and outputs the digital signal to the digital potentiometer; the driving module drives a load path after receiving the switching value control signal; the sampling module collects the current of the load path, converts the current into feedback voltage and outputs the feedback voltage; the digital potentiometer converts the digital signal into a reference voltage and outputs the reference voltage; the feedback module is used for controlling the front end of the driving module according to the reference voltage and the feedback voltage. The direct current feedback regulation control circuit provided by the invention can realize complex current control.
Description
technical field [0001] The present invention relates to the technical field of current regulation, and more particularly, to a DC current feedback regulation control circuit. Background technique [0002] There are two common ways to adjust the current: software PID adjustment and hardware feedback adjustment. The software regulation is affected by the analog-to-digital conversion speed and the software running speed, the response speed is slow, and the current cannot be changed quickly, thus generating a complex current waveform. Although the hardware control has a fast response speed, it cannot flexibly change parameters, nor can it generate arbitrary current waveforms. SUMMARY OF THE INVENTION [0003] In order to solve the deficiencies in the prior art, the present invention provides a DC current feedback regulation control circuit, which can realize complex current control. [0004] As a first aspect of the present invention, a DC current feedback adjustment control...
Claims
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Login to View More IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 沈挚诚沈祝山毛捍华孙纯琪许爱军李荣辉
Owner WUXI WABT EQUIP TECH CO LTD