Switching mode voltage-regulated device with energy-saving circuit and energy-saving control method

A switching, energy-saving technology, applied in control/regulating systems, regulating electrical variables, instruments, etc., can solve the problems of switching voltage regulators such as audio noise
CN1920726AInactive Publication Date: 2007-02-28SYST GEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SYST GEN
Publication Date
2007-02-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a switching stabilizer for saving electricity, to improve the system efficiency at light load, wherein the first controller, based on the change of feedback signal, outputs one oscillating signal and one energy-saving signal; the second controller receives said oscillating signal and feedback signal, to output switching signal to control switch; the stop time of switching signal will increased along the decrease of load; when the switching signal is stopped, the energy-saving signal can stop the switch, and close not needed circuit in the stabilizer, to save energy.
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Description

technical field

[0001] The invention relates to an energy-saving switching voltage regulator, a power supply and a power converter. Background technique

[0002] Switching regulators use control switching signals to provide adjustable output voltage and current. Based on the demand for energy saving, the power utilization rate in electronic products must comply with power management and energy saving specifications.

[0003] Please refer to Figure 1, which is a schematic diagram of an existing switching regulator, a switching switch Q 1 is an input terminal V coupled to the switching regulator IN . Through a magnetic component T 1 , the toggle switch Q 1 transmits power to an output terminal V of the switching regulator O . An auxiliary switch Q 2 is used to provide synchronous rectification or half-bridge circuit architecture, the auxiliary switching switch Q 2 is selectable as enabled or disabled. A coupler (coupler) 50 is coupled to the output terminal V of the ...

Claims

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