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Heating circuit

A technology of heating circuits and branch circuits, which is applied in printed circuits, electric heating devices, manufacturing tools, etc., and can solve problems such as waste of resources and high costs

Inactive Publication Date: 2015-06-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the circuit board test, it is occasionally necessary to solder the solder joints of the circuit board. In an environment with low soldering frequency, if you purchase professional soldering equipment, it will require higher costs and waste resources.

Method used

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Examples

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Embodiment Construction

[0014] Please refer to figure 1 A preferred embodiment of the heating circuit 100 of the present invention includes a power supply 200 , a driving module 300 , a first branch circuit 10 , a second branch circuit 20 and a third branch circuit 30 . The first branch circuit 10 includes a capacitor C1 and a field effect transistor Q1 , the second branch circuit 20 includes a capacitor C2 and a field effect transistor Q2 , and the third branch circuit includes a capacitor C3 and a field effect transistor Q3 .

[0015] In this embodiment, the field effect transistors Q1-Q3 are all N-channel field effect transistors.

[0016] The power supply 200 is grounded through the switch K, the resistor R and the capacitor C1, the power supply 200 is also connected to the drain of the field effect transistor Q1, the gate of the field effect transistor Q1 is connected to the driving module 300, and the The source of the field effect transistor Q1 is grounded through a heating module 400, and th...

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PUM

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Abstract

The invention provides a heating circuit. The heating circuit comprises a power source, a driving module, a first branch circuit and a second branch circuit. The driving module is used for outputting a high level signal or a low level signal; the first branch circuit comprises a first capacitor and a first field effect tube; the power source is grounded by use of the first capacitor; the power source is further connected to the drain of the first field effect tube; the gate of the first field effect tube is connected with the driving module, while the source of the first field effect tube is grounded by use of a heating module; the second branch circuit comprises a second capacitor and a second field effect tube; the power source is grounded by use of the second capacitor; the power source is further connected to the drain of the second field effect tube; the gate of the second field effect tube is connected with the driving module, while the source of the second field effect tube is grounded by use of the heating module.

Description

technical field [0001] The invention relates to a heating circuit, in particular to a heating circuit applied to a spot welding machine. Background technique [0002] In the circuit board test, it is occasionally necessary to solder the solder joints of the circuit board. In an environment with low soldering frequency, if you purchase professional soldering equipment, it will require higher costs and waste resources. Contents of the invention [0003] In view of this, it is necessary to provide a simple and effective heating circuit. [0004] A heating circuit, comprising: [0005] a power supply; [0006] A driving module, the driving module is used to output a high-level signal or a low-level signal; [0007] The first branch circuit, the first branch circuit includes a first capacitor and a first field effect transistor, the power supply is grounded through the first capacitor, and the power supply is also connected to the drain of the first field effect transistor, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/00
CPCB23K3/0478B23K2101/42
Inventor 张新萍
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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