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Reset time-adjustable reset circuit and equipment

A reset circuit, reset time technology, applied in electrical components, electronic switches, pulse technology and other directions, can solve the problem of unadjustable reset time

Pending Publication Date: 2021-08-31
LEEDARSON IOT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a reset circuit and device with adjustable reset time to solve the problem that the reset time of the reset circuit in the prior art is not adjustable

Method used

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  • Reset time-adjustable reset circuit and equipment
  • Reset time-adjustable reset circuit and equipment
  • Reset time-adjustable reset circuit and equipment

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Embodiment Construction

[0021] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0022] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0023] An embodiment of the present invention provides a reset circuit with adjustable reset time. A reset circuit with adjustable reset time in this embodiment includes:

[0024] When the reset pin RST is active at low level, the reset circuit includes: RC loop, comp...

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Abstract

The invention is suitable for the technical field of integrated circuit design, and provides a reset circuit and equipment with adjustable reset time. The reset circuit comprises an RC loop, a comparator, a fourth resistor, a fifth resistor, an NPN type triode, a CPU, a power supply, a switch button, a first resistor, a second resistor, a third resistor and a capacitor; the positive electrode of the power supply is connected with the fourth resistor, the second resistor and the switch button, the fourth resistor is further connected with the CPU and the NPN type triode, the second resistor is connected with the third resistor and the comparator, the switch button is connected with the first resistor, the first resistor is further connected with the capacitor and the comparator, and the capacitor, the third resistor and the NPN type triode are all connected with the negative electrode of the power supply. The comparator is connected with a fifth resistor, and the fifth resistor is also connected with the NPN-type triode. According to the reset circuit, the comparator, the LC loop and the MOS tube are combined, so that the reliability of the reset circuit is effectively improved, and the ESD resistance is high.

Description

technical field [0001] The invention belongs to the technical field of integrated circuit design, and in particular relates to a reset circuit and equipment with adjustable reset time. Background technique [0002] In integrated circuit design, in order to ensure the certainty of the entire circuit state, it is necessary to reset the internal circuit. Therefore, reset circuits are an indispensable part of integrated circuit design. [0003] At present, the existing reset circuit generally charges the capacitor through a PMOS tube. Using the principle that the voltage at both ends of the capacitor cannot change suddenly, the voltage of the capacitor is zero when the power is turned on, and the time for the power supply to charge the capacitor through the PMOS tube is the reset time. Or use the integrated reset IC directly. [0004] However, the above reset circuit cannot solve the problem of adjustable reset time. Contents of the invention [0005] In view of this, embod...

Claims

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Application Information

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IPC IPC(8): H03K17/22
CPCH03K17/22
Inventor 孙海滨张文聪
Owner LEEDARSON IOT TECH INC
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