Output circuit for peripheral nerve injury regeneration rehabilitation therapeutic instrument

Abstract

The invention discloses an output circuit for a peripheral nerve injury regeneration rehabilitation therapeutic instrument. The output circuit comprises a digital control circuit and a voltage stabilizer, wherein the digital control circuit is connected with a controller of the rehabilitation therapeutic instrument, and the voltage stabilizer is connected with the digital control circuit; the digital control circuit is used for sequentially performing photoelectric coupling, signal selection, signal reversing and resistance selection on a control signal of the controller, so that the current to ground of the adjusting end of the voltage stabilizer is adjusted; and the voltage stabilizer is used for generating an output voltage according to the adjusted current to ground and a reference current of the voltage stabilizer. Compared with a traditional output circuit, a contact potentiometer is replaced with the digital control circuit, the problem that the output of the output circuit is unstable due to resistance drift of the contact potentiometer and contact aging of the contact potentiometer is solved, and the stability of output voltage is improved.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to an output circuit for a peripheral nerve injury regenerative rehabilitation treatment instrument. Background technique [0002] In daily life, people will inevitably suffer from a large number of accidental injuries, such as car accidents, fractures, cuts, extrusions and other traumas. In addition to causing damage to human tissue, these conditions will also cause damage to the peripheral nerves of the human body. . At present, surgery has been developed to effectively treat most of these traumas, and even replant severed fingers. However, peripheral nerve injuries in these parts cannot be recovered in a short time, and the regeneration rate is very slow. Compared with skin, bone, muscle tissue, etc., the recovery period of nerves is very long. Peripheral nerve damage can cause sensory and motor dysfunction. If it is not repaired and treated in a timely and effective ...

AI Technical Summary

Problems solved by technology

[0003] However, when the output circuit of the traditional rehabilitation therapy instrument for peripheral nerve injury regeneration uses a contact potentiometer to control the adjustment terminal of the adjustable three-terminal voltage regulator LM317HVT, because the resistance value drift of the contact potentiometer itself and the contact potential The output of the output circuit is unstable due to the aging of the contacts of the device

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