Isolated High Frequency Switching Constant Current Converter

Abstract

The invention belongs to the technical field of power electronic conversion, and particularly relates to an isolation type high-frequency switch constant-current converter. The isolation type high-frequency switch constant-current converter comprises a high-frequency switch constant-current conversion module, a constant-voltage power supply module, a driving module which can output stable pulse wave forms and a control module. The high-frequency switch constant-current conversion module comprises a high-frequency constant-current conversion circuit and a rectifying filtering circuit. The control module comprises a starting circuit and a protection circuit. The constant-voltage power supply module is connected with the driving module, the high-frequency constant-current conversion circuit and the starting circuit. The driving module is connected with the high-frequency constant-current conversion circuit, the high-frequency constant-current conversion circuit is connected with the rectifying filtering circuit, the rectifying filtering circuit is connected with the protection circuit and the starting circuit is connected with the high-frequency constant-current conversion circuit. The isolation type high-frequency switch constant-current converter is simple and effective in design, simple in constant-voltage / constant-current conversion process, high in efficiency and capable of achieving the purposes of constant current outputting, constant current conversion, constant current branching and constant current circuit networking, and is provided with no high-loss device.

Description

technical field [0001] The invention belongs to the technical field of power electronic conversion, and in particular relates to an isolated high-frequency switch constant current converter. Background technique [0002] The DC converter in the prior art is a device that converts one voltage of direct current into another or several voltages of direct current. It is only suitable for the occasion of constant voltage power supply, and can only complete the conversion between constant voltages, but cannot complete constant voltage. The conversion between currents, that is, the constant current of one current cannot be converted into the constant current of another or several currents, and at the same time, it does not have the multi-channel branching capability of constant current, which cannot meet the networking needs of constant current circuits. . Therefore, in applications such as constant current power supply systems, such as remote power supply systems based on constan...

AI Technical Summary

Problems solved by technology

[0002] The DC converter in the prior art is a device that converts one voltage of direct current into another or several voltages of direct current. It is only suitable for the occasion of constant voltage power supply, and can only complete the conversion between constant voltages, but cannot complete constant voltage. The conversion between currents, that is, the constant current of one current cannot be converted into the constant current of another or several currents, and at the same time, it does not have the multi-channel branching capability of constant current, which cannot meet the networking needs of constant current circuits.

Therefore, in applications such as constant current power supply systems, such as remote power supply systems for submarine observation networks based on constant current power supply methods, traditional DC / DC converters do not have practical application value

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