Digital direct tuning DC voltage stabilizing and regulating power source
A technology of voltage regulating power supply and switching regulated power supply, which is applied in the direction of regulating electrical variables, converting DC power input to DC power output, electrical components, etc. , to achieve the effect of light weight, stable voltage and large input voltage range
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[0011] Now image 3 The embodiment illustrates the specific implementation of the digital direct-regulated DC voltage-stabilized power supply:
[0012] It is a PWM switching power supply. In addition to the external input terminal and output terminal (+), (-) terminal, the main circuit is set between the two internal terminals: power switch, power supply Filter circuit, power frequency rectifier filter circuit, PWM power inverter, high frequency rectifier filter circuit, DC output switch. The control circuits are: central controller and protection circuit. There is also a working power supply for the normal operation of each circuit. The connection between the above circuits is: the input terminal is connected to the AC power grid, after the power switch (S), the power filter circuit, the power frequency rectifier filter circuit obtains the DC high voltage, and the PWM power inverter is connected to the center Under the control of the controller, the DC / AC power conversion is ...
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