Interference-resistant control circuit
A control circuit and circuit technology, which is applied in the direction of electrical components, high-efficiency power electronic conversion, output power conversion devices, etc., can solve the problems of rising prices, complex power supply lines, and improvement, and achieve the effect of simple lines and low cost
Pending Publication Date: 2019-11-26
SELF ELECTRONICS CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to solve the above problems, the control signal can be changed to low voltage and high current, but this setting greatly increases the power supply requirements of the main circuit, the power supply line becomes complicated, the product size becomes larger, the price rises, and it may not meet the standby function requirements. consumption requirements
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
[0019] Specific embodiments of the present invention will be described in further detail below based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention here is not intended to limit the protection scope of the present invention.
[0020] Such as figure 1 with 2 As shown, the anti-interference control circuit of this embodiment includes a control module 200 capable of detecting the AC signal of the external control input 100 and outputting different control signals, and a power supply module 300 connected to the control module 200 after stepping down the external input power And an anti-interference circuit 400 for filtering interference signals, the anti-interference circuit 400 includes a rectifying diode D1, a voltage stabilizing diode D2 and a current limiting resistor R3 connected in series in sequence, the rectifying diode D1 is connected to an external control input 100, and the current limiting resisto...
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 discloses an interference-resistant control circuit. The interference-resistant control circuit comprises a control module, a power supply module and an interference-resistant circuit, wherein the control module can be used for detecting an AC signal input by an external controller and outputting different control signals, the power supply module is connected to the control module after voltage drop of an external input power supply, the interference-resistant circuit comprises a rectification diode D1, a voltage stabilization diode D2 and a current-limiting resistor R3 which aresequentially connected in series, the current-limiting resistor R3 is connected to one side of the control module, one end is led out, is connected with a first filtering capacitor C3 and is then connected with ground, and the first filtering resistor C3 is connected with a charging resistor R4 and then is connected to the power supply module. In the interference-resistant control circuit, multi-switch parallel control can be achieved by an external control line, the distance interval can be set to be very large, the signals still can be accurately identified, the circuit is simple and is lowin cost, and the requirement of standby power consumption is met.
Description
technical field [0001] The invention relates to the technical field of circuit control, in particular to an anti-interference control circuit. Background technique [0002] The input terminal of the ordinary control circuit is low voltage and small current. If the control switch used as the external control input is connected to a position far away from the control circuit, that is, when the external line is too long, the line will sense and receive signals of various frequencies. The interference signal causes the control circuit to fail to detect the effective level of the input terminal, thus making the circuit function out of control. The interference will be more serious when the external control input is incorporated into multiple control switches. [0003] In order to solve the above problems, the control signal can be changed to low voltage and high current, but this setting greatly increases the power supply requirements of the main circuit, the power supply line b...
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 Applications(China)
IPC IPC(8): H02M1/14
CPCH02M1/14Y02B70/10
Inventor 王其明
Owner SELF ELECTRONICS CO LTD