Direct current power supply with equipment protecting function
A protection function, a technology of DC power supply, applied in the field of power supply, can solve the problem of equipment protection that the power supply cannot be rated working power, and achieve the effect of avoiding damage to the equipment
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Example Embodiment
[0011] Example one:
[0012] Kind of like figure 1 , figure 2 The shown DC power supply with equipment protection function includes a housing 1, a display screen 2 and a control button 3 arranged on the housing 1, and a current sensor, a voltage sensor, a power switch and a power switch arranged in the housing 1. Integrated circuit board, the integrated circuit board is provided with AD conversion circuit I, AD conversion circuit II and single-chip microcomputer, the power switch is connected in series in the output circuit of the power supply; the DC power supply with equipment protection function can be based on the equipment The rated working power is used for output regulation, which provides the best protection for the equipment, and has the function of monitoring the power output power. If the power output exceeds the rated working power of the equipment, the output circuit will be automatically disconnected to protect the equipment and avoid damage to the equipment.
Example Embodiment
[0013] Embodiment two:
[0014] The above-mentioned current sensor is used to detect the current output signal of the power supply and send the signal to the AD conversion circuit II; the AD conversion circuit II is used to receive the signal sent by the current sensor, then digitize it and send it to a single-chip microcomputer; the voltage sensor Used to detect the voltage output signal of the power supply and send the signal to the AD conversion circuit I; the AD conversion circuit I is used to receive the signal sent by the voltage sensor, then digitize it, and send it to a single-chip microcomputer; the single-chip microcomputer is used to receive and control The command input by the button and the signal sent by the AD conversion circuit I and AD conversion circuit II are then judged, and then the display screen is controlled to display information or the received command, and finally the power switch is turned on and off.
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