Suitable for power supply circuit of intermediate frequency electrotherapy instrument

A technology of power supply circuit and power circuit, which is applied in the direction of electrotherapy and treatment, can solve the problems of incapable performance of medium frequency electrotherapy apparatus, operation limitation of electronic components, influence of use effect, etc. Effect

Active Publication Date: 2016-08-24
CHENGDU TRINIDAD ELECTRONICS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the power supply voltage of each electronic component is different, in terms of power supply, if a power supply is provided directly, the operation of the electronic component is limited due to the different voltage requirements of each electronic component, so that the intermediate frequency electrotherapy instrument cannot perform well. Effect

Method used

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  • Suitable for power supply circuit of intermediate frequency electrotherapy instrument

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Effect test

Embodiment 1

[0015] Such as figure 1 A power supply circuit suitable for an intermediate frequency electrotherapy apparatus is shown, including a first power circuit, a second power circuit and a third power circuit, and the first power circuit includes an electrically connected first bridge rectifier circuit and The first three-terminal voltage regulator, the second power supply circuit includes a second bridge rectifier circuit and a second three-terminal voltage regulator that are electrically connected, and the third power supply circuit includes a third power supply circuit that is electrically connected in sequence a bridge rectifier circuit, a diode, and a third three-terminal regulator, and the voltage input terminals and voltage output terminals of the first three-terminal regulator, the second three-terminal regulator, and the third three-terminal regulator are both A decoupling circuit is connected, and the input terminals of the first bridge rectifier circuit, the second bridge...

Embodiment 2

[0017] Such as figure 1 Shown is a power supply circuit suitable for intermediate frequency electrotherapy instruments. This embodiment discloses a set of specific implementation methods on the basis of the above embodiments, that is, the first three-terminal voltage regulator is LM7912, and the first three-terminal voltage regulator is LM7912. The second three-terminal voltage regulator is LM7805, and the third three-terminal voltage regulator is LM7815.

[0018] The first capacitor is a 220 μf electrolytic capacitor, and the second capacitor is a 0.1 μf capacitor.

[0019] The electronic components inside the intermediate frequency electrotherapy instrument use operational amplifiers, controllers, and power amplifiers, which require voltages of -12V, +15V, and +5V. Using LM7912, LM7805, and LM7815 can generate -12V, +15V, and +5V respectively to meet various The operational requirements of electronic components. The self-recovery fuse can choose different models according ...

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PUM

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Abstract

The invention discloses a power supply circuit suitable for an intermediate frequency electrotherapy instrument, comprising a first power supply circuit, a second power supply circuit and a third power supply circuit, the first power supply circuit comprising a first bridge rectifier circuit electrically connected and the first three-terminal voltage regulator, the second power supply circuit includes a second bridge rectifier circuit and a second three-terminal voltage regulator electrically connected, and the third power supply circuit includes a first A three-bridge rectifier circuit, a diode and a third three-terminal regulator, the voltage input terminals and the voltage output terminals of the first three-terminal regulator, the second three-terminal regulator and the third three-terminal regulator All are connected with decoupling circuits, the input terminals of the first bridge rectifier circuit, the second bridge rectifier circuit and the third bridge rectifier circuit are all connected with resettable fuses, and the decoupling circuit includes the first A capacitor and a second capacitor, the first capacitor and the second capacitor are connected in parallel and a common terminal is grounded. It can provide a variety of voltages to optimize the performance of each electronic component of the intermediate frequency electrotherapy instrument.

Description

technical field [0001] The invention relates to the field of power supply, in particular to a power supply circuit suitable for an intermediate frequency electrotherapy apparatus. Background technique [0002] The intermediate frequency electrotherapy device is an intermediate frequency current modulated by low frequency. This not only retains the characteristics of low-frequency electricity, but also brings into play the characteristics of medium-frequency electricity. Electrotherapy has therapeutic effects such as analgesia, swelling, inflammation, desensitization, muscle spasm relief, tissue tension enhancement, and recovery of normal nerve conduction and regulation functions. . The intermediate frequency electrotherapy instrument contains a lot of electronic components, and there are many electronic components in it, and the operation of each electronic component needs to provide power, such as operational amplifiers, controllers, etc. Since the power supply voltage of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N1/32
Inventor 张文
Owner CHENGDU TRINIDAD ELECTRONICS EQUIP
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