Capacitive switch power supply with low power consumption standby function
A technology of micro power consumption and power supply, which is applied in the direction of circuits, irreversible AC power input conversion to DC power output, relays, etc., can solve the problem of high power consumption of power supply, and achieve low cost, high reliability, and extended service life. Effect
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[0046] figure 1 Shown is the structural block diagram of the open capacity power supply with micro-power consumption standby function of the present invention, the open power supply is composed of mains isolated power supply (current general electronic equipment uses high-efficiency switching power supply), capacitor step-down rectification It is composed of filter power supply and power management circuit. When the host is working normally, the mains isolated power supply provides the power required by the host. The mains isolated power supply is a switching power supply, and its working state can be controlled by the power management circuit: the mains isolated power supply provides feedback signals to the power management circuit, and the power management circuit Control the switching state of the switch tube; when the host is in standby mode, the power management circuit receives a standby signal from the host circuit or the outside, and controls the mains isolated power s...
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