A voltage adjustment circuit and program-controlled power supply
A technology of voltage adjustment circuit and program-controlled power supply, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of cumbersome operation and poor control accuracy, and achieve the effect of high control accuracy and simple operation
Active Publication Date: 2017-05-10
KUSN INFOVISION OPTOELECTRONICS
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] but if figure 2 The shown DC power supply needs to be manually rotated to change the resistance value of the second resistor R2, thereby changing the first DC voltage output by the DC power supply. The operation is cumbersome and the control accuracy is poor.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0022] Although the present invention uses the terms first, second, third, etc. to describe various elements, signals, ports, components or sections, these elements, signals, ports, components or sections are not limited by these terms. These terms are only used to distinguish one element, signal, port, component or section from another element, signal, port, component or section. In the present invention, an element, port, component or part is "connected" or "connected" to another element, port, component or part, which can be understood as a direct electrical connection, or can also be understood as an indirect electrical connection with an intermediate element. sexual connection. Unless otherwise defined, all terms (including techn...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a voltage regulation circuit which comprises a first operational amplifier, a first divider resistor, a second divider resistor, a second operational amplifier and a transistor. The first in-phase input end of the first operational amplifier receives reference voltage. The first divider resistor is located between the first antiphase input end of the first operational amplifier and the first output end of the first operational amplifier, and the second divider resistor is located between the first antiphase input end and the ground. The second in-phase input end of the second operational amplifier is connected with the first output end of the first operational amplifier. The first channel end of the transistor receives first direct current voltage, the first control end of the transistor is connected with the second output end of the second operational amplifier, and the second channel end of the transistor is connected with the second antiphase input end of the second operational amplifier. The invention further provides a programmable power source. The voltage regulation circuit and the programmable power source can automatically control the magnitude of the output voltage, operation is simple, and control accuracy is high.
Description
technical field [0001] The invention relates to the technical field of a power supply, in particular to a voltage adjustment circuit and a program-controlled power supply. Background technique [0002] DC power supply is a common power supply for electronic equipment. In order to adapt to electronic equipment or electronic components with different driving voltages, a DC voltage converter is generally used to change the output voltage. [0003] figure 1 It is a schematic diagram of the circuit structure of the DC power supply in the first embodiment of the prior art. Such as figure 1 As shown, the existing DC power supply includes a fuse F, a voltage conversion chip 100, a diode D, an inductor L, a first resistor R1, a second resistor R2, a third resistor R3, and a first capacitor C1. The DC power supply is used to output the first DC voltage to drive the load resistor RL. Wherein, the voltage conversion chip 100 includes an input pin IN, an enable pin EN, a feedback pin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 周永超常琳刘胜利
Owner KUSN INFOVISION OPTOELECTRONICS