Switch power supply system
A switching power supply and control system technology, applied in the field of electricity, can solve the problems of difficult to achieve intelligent control, real-time performance needs to be strengthened, etc., to achieve the effect of convenient real-time monitoring and intelligent improvement
Inactive Publication Date: 2017-05-10
纪新辉
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Problems solved by technology
However, the existing switching power supply is still difficult to achieve intelligent control in terms of control, and the real-time performance of ordinary control systems needs to be strengthened
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[0009] Such as figure 1 As shown, a switching power supply system includes a display circuit, a control module, a TL494PWM control module, a high-frequency change module, a rectification filter module, a voltage output module, a terminal signal module, a voltage sampling module, and a current sampling module, and is characterized in that: control The output terminal of the module is connected to the display circuit, the output voltage of the control module is sent to the TL494PWM control module, and the TL494PWM control module is connected to the voltage sampling module and the current sampling module through the high frequency change module, the rectification filter module and the voltage output module in turn , the voltage sampling module and the current sampling module are connected to the interrupt signal module, and the interrupt signal module is connected to the input terminal of the control system.
[0010] As a preferred solution, the control system is an 89C51 single-...
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The invention belongs to the electricity field, particularly relates to the switch power supply system and aims to realize properties of strong timeliness and high control precision. The switch power supply system comprises a display circuit, a control module, a TL494PWM control module, a high frequency change module, a rectification filtering module, a voltage output module, a terminal signal module, a voltage sampling module and a current sampling module. The switch power supply system is characterized in that an output end of the control module is connected with the display circuit, the control module outputs a voltage presetting voltage stabilization reference setting signal to the TL494PWM control module, the TL494PWM control module is connected with the voltage sampling module and the current sampling module sequentially through the high frequency change module, the rectification filtering module and the voltage output module, the voltage sampling module and the current sampling module are connected with an interrupt signal module, and the interrupt signal module is connected with an input end of a control system.
Description
technical field [0001] The invention belongs to the field of electricity, and in particular relates to an improvement of a switching power supply system. Background technique [0002] Switching power supply is a new type of regulated power supply that uses modern power electronics technology to control the time ratio of power switch (MOSFET, IGBT) turn-on and turn-off to stabilize the output voltage. Switching power supplies have been widely used in various electronic and electrical equipment fields, computers, program-controlled switches, communications, electronic testing equipment power supplies, and control equipment power supplies. However, the existing switching power supply is still difficult to achieve intelligent control in terms of control, and the real-time performance of ordinary control systems needs to be strengthened. Contents of the invention [0003] The present invention aims at the above problems and provides a switching power supply system with strong ...
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IPC IPC(8): H02M1/00H02H7/12
Inventor 纪新辉
Owner 纪新辉