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Soft-start switch circuit system

A soft start switch and circuit system technology, applied in electronic switches, electrical components, pulse technology, etc., can solve the problems of reduced service life of electric tools, increased maintenance costs, and impact on motor life, so as to prolong the service life and reduce maintenance costs Effect

Inactive Publication Date: 2016-12-21
SUZHOU LYULI ELECTRONICS SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Existing electric tools are usually powered by a power supply and controlled by a switch to start or stop the movement of the motor. When the switch is closed, a large current will be generated instantaneously, which will impact the motor and affect the life of the motor. , which leads to a reduction in the service life of the electric tool, and the need to replace the motor during maintenance, resulting in an increase in maintenance costs

Method used

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  • Soft-start switch circuit system

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] Such as figure 1 A soft-start switch circuit system shown includes a power supply, a load M connected to the power supply, and a switch K for connecting the power supply and the load M. The load M is a motor, and a soft-start unit is provided on the switch K. The soft start unit is connected to both ends of the switch K, and is divided into four circuits after passing through the first diode D1, the second diode D2 and the third diode D3 at one end of the switch K, the first The first path is connected to the ground through the first capacitor C1, the second path is connected to the collector of the third triode Q3, the third path is connected to the VCC pin of the time base circuit to provide voltage, and the fourth path is connected to the RESET pin of the time base circuit; The other end of the switch K described above is divided into two circuits, the fir...

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Abstract

The invention relates to a soft-start switch circuit system comprising a power supply, a load connected with the power supply, and a switch used for switching on the power supply and the load. The switch is equipped with a soft start unit. Through control of a time base circuit and combined use of triodes, the voltage rises steadily. By using the circuit system, the voltage applied by the power supply to the load can be well controlled, and rises slowly. The soft-start function of the whole system is realized. The load motor is well protected, the service life thereof is prolonged, and the maintenance cost is reduced. The soft-start switch circuit system is very practical.

Description

technical field [0001] The invention relates to the production and manufacturing industry of electric tools, in particular to a soft start switch circuit system. Background technique [0002] With the development of society, the use of electric tools is becoming more and more common in various fields, and there are more and more types of electric tools. The main components of electric tools are the control of electric energy through the circuit system to drive the mechanical system. Usually Design the circuit system and mechanical system as needed to meet the required requirements. Existing electric tools are usually powered by a power supply and controlled by a switch to start or stop the movement of the motor. When the switch is closed, a large current will be generated instantaneously, which will impact the motor and affect the life of the motor. , resulting in a reduction in the service life of the electric tool, and the need to replace the motor during maintenance, res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/687
CPCH03K17/687
Inventor 韦超敏
Owner SUZHOU LYULI ELECTRONICS SCI & TECH CO LTD
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