Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrostatic protection circuit

A protective circuit and electrostatic protection technology, which is applied to emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve problems such as small size and mobile equipment volume burden, and achieve circuit protection. The effect of simple structure

Inactive Publication Date: 2017-03-08
邱晓霞
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small size of most mobile devices, too complex circuits will bring a burden to the size of mobile devices

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 more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An electrostatic protection circuit, characterized in that it includes a primary protection circuit and a secondary protection circuit connected in parallel with the primary protection circuit, the primary protection circuit includes a capacitor, a first diode and a second diode , the capacitor is connected in parallel with the first diode, the anode of the second diode is connected with the cathode of the first diode, and the secondary protection circuit includes a resistor, a third diode and a first diode Four diodes, the resistor is connected in series with the third diode, the anode of the fourth diode is connected to the cathode of the third diode, and the cathode of the first diode is connected to the resistor on R.

[0014] When in use, the power interface of the electrical equipment is connected to the negative pole of the first diode of the primary protection circuit, and the internal circuit of the electrical equipment is connected to the negative pole of the ...

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

PropertyMeasurementUnit
Resistanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses an electrostatic protection circuit. The electrostatic protection circuit comprises a first-stage protection circuit and a second-stage protection circuit connected with the first-stage protection circuit in parallel, wherein the first-stage protection circuit comprises a capacitor, a first diode and a second diode; the capacitor is connected with the first diode in parallel; the positive electrode of the second diode is connected with the negative electrode of the first diode; the second-stage protection circuit comprises a resistor, a third diode and a fourth diode; the resistor is connected with the third diode in series; the positive electrode of the fourth diode is connected with the negative electrode of the third diode; and the negative electrode of the first diode is connected with a resistor R. The electrostatic protection circuit is excellent in electrostatic protection effect and simple in circuit structure.

Description

technical field [0001] The invention relates to the field of integrated circuits, in particular to an electrostatic protection circuit. Background technique [0002] With the development of science and technology and the continuous updating of technology, electronic equipment is becoming more and more popular. There are more and more mobile electronic devices for ease of use. Mobile devices are mostly pocket-sized and handheld. Because many sensitive electronic components are integrated on the circuit board inside the mobile device. When a person uses a mobile device, due to the static electricity on the human body, especially in the dry winter season, the static electricity of the human body is easy to cause damage to the electronic components in the mobile device. Since most mobile devices are small in size, a circuit that is too complex will bring a burden to the size of the mobile device. Therefore, on the port of a mobile device, it is not only required to effective...

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
no application Login to View More
IPC IPC(8): H02H9/04
Inventor 邱晓霞
Owner 邱晓霞