Current-extending constant-current circuit voltage divided direct-current auxiliary power supply

Abstract

The invention discloses a current-extending constant-current circuit voltage divided direct-current auxiliary power supply. The current-extending constant-current circuit voltage divided direct-current auxiliary power supply comprises M constant-current modules and N voltage stabilizing modules which are sequentially connected in series, wherein the head ends and the tail ends of the modules are respectively connected with a direct-current power supply positive end HV+ and a direct-current power supply negative end HV-, M = {1, 2,..., i,..., m}, N = {1, 2,..., j,..., n}, and m >= n >= 1. During design and use, due to the fact that any one constant-current module has a constant-current work voltage range, any one voltage stabilizing module has a voltage stabilizing work voltage range, the specific number of the M constant-current modules and the specific number of the N voltage stabilizing modules are determined within a dynamic range, the sum of produced accumulated voltage differences cannot be greater than the voltage difference of the direct-current power supply positive end HV+ and the direct-current power supply negative end HV-. The current-extending constant-current circuit voltage divided direct-current auxiliary power supply is simple in design, reasonable in structure, convenient to construct and good in universality, can overcome the shortcoming of high-voltage adaptability of an existing direct-current auxiliary power supply and can effectively achieve direct conversion of high and low voltage direct-current power supplies.

Description

technical field [0001] The invention relates to a DC auxiliary power supply, more specifically, to a DC auxiliary power supply with a current expansion type constant current circuit for voltage division. Background technique [0002] The current DC auxiliary power supply is mostly used in the low-voltage field, and the technology is relatively mature. However, due to the characteristics of the device and the insufficient withstand voltage performance of the circuit structure, if it is directly applied to a high-voltage circuit, there will inevitably be defects such as complex structure, high manufacturing cost, and poor versatility. Contents of the invention [0003] In view of this, the present invention aims to provide a DC auxiliary power supply with a current expansion type constant current circuit voltage division, which can not only overcome the lack of high voltage adaptability of the existing DC auxiliary power supply, but also effectively realize the direct connec...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the device and the lack of withstand voltage performance of the circuit structure, if it is directly applied to a high-voltage circuit, there must be defects such as complex structure, high production cost, and poor versatility.

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