CN201444619U

CN201444619U - Power supply unit of power-saving socket

Info

Publication number: CN201444619U
Application number: CN2009200053855U
Authority: CN
Inventors: 陈勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-04
Filing date: 2009-03-04
Publication date: 2010-04-28
Anticipated expiration: 2019-03-04

Abstract

The utility model relates to a power supply unit of a power-saving socket, which consists of an alternating current input, a voltage boosting and reducing circuit, a voltage-stabilizing circuit and a direct current output, and mainly solves the problem that the prior power-saving socket has overhigh standby power consumption. By aiming at overcoming the defects of the prior art, the utility model provides the power-saving socket with extremely-high power supply conversion efficiency. Through the power supply unit, the function of reducing the standby power consumption of the power-saving socket can be realized.

Description

A kind of power supply unit of electricity-saving socket

Technical field

The utility model relates to appliance field, mainly is supply socket and plug converter etc., particularly a kind of power supply unit of electricity-saving socket.

Background technology

Existing electricity-saving socket product, power unit adopts resistance-capacitance depressurization or transformer step-down or Switching Power Supply mode, sees Figure of description 1-3.

The shortcoming of this type of electricity-saving socket is that power supply step-down autophage current ratio is higher, about 0.5W.

The utility model content

The purpose of this utility model is to provide a kind of self power consumption to approach the electricity-saving socket power supply unit of 0W, mainly solve the existing big technical problem of electricity-saving socket product self stand-by power consumption, in order to overcome the deficiencies in the prior art, the power supply unit that the utility model provides a kind of capacitance-resistance to combine with Switching Power Supply, thus realization reduces the purpose of electricity-saving socket oneself power consumption.

The technical solution of the utility model is:

The power supply unit of this electricity-saving socket is electrically connected in proper order by resistance-capacitance circuit, rectification, voltage stabilizing circuit, it is characterized in that the voltage stabilizing circuit input is made up of the capacitance three-point type self-maintained circuit, and output is made up of transformer step-down and filter circuit.

The power supply unit of described electricity-saving socket is characterized in that transformer is small-sized high frequency transformer.

Outside 220V AC power becomes tens of milliamperes electric current after by resistance-capacitance circuit, by being converted to direct current after the rectification of diode bridge heap, by being converted to low-voltage direct output behind the voltage stabilizing circuit.

The input of this voltage stabilizing circuit is the capacitance three-point type self-maintained circuit, and the direct current of importing is converted to the high-voltage alternating that frequency is not higher than 200KHz;

The output of voltage stabilizing circuit is made up of high frequency transformer and current rectifying and wave filtering circuit, and the high-frequency and high-voltage AC signal is converted to high frequency low voltage after by high frequency transformer, by diode rectification and capacitor filtering, high frequency low voltage is converted to low-voltage direct output.

Power module described in the utility model is applied on the electricity-saving socket, and the DC power supply of stablizing and approaching 0 power consumption can be provided.The electricity-saving socket of making can be applicable in the economize on electricity of products such as television set, sound equipment, DVD player, computer, printer, thereby cuts down the consumption of energy.

Description of drawings

Fig. 1 is that existing electricity-saving socket power unit adopts resistance-capacitance depressurization mode schematic diagram;

Fig. 2 is that existing electricity-saving socket power unit adopts transformer step-down mode schematic diagram;

Fig. 3 is that existing electricity-saving socket power unit adopts Switching Power Supply step-down mode schematic diagram;

Fig. 4 is a power supply reduction voltage circuit schematic diagram of the present utility model;

Fig. 5 is a kind of electricity-saving socket circuit diagram.

Embodiment

To help to understand the utility model by the following description of the embodiments, but not limit content of the present utility model.

Accompanying drawing 1 adopts the resistance-capacitance depressurization mode

Adopt the resistance-capacitance depressurization mode, produce direct current output by capacitance-resistance current limliting, the rectification of diode bridge heap, capacitor filtering.This kind mode advantage is that cost is low, and shortcoming is that power supply has tens of milliamperes current loss always, and after the circuit that connects concerning human body, have high pressure, have potential safety hazard.

Accompanying drawing 2 transformer decompression principle figure

Adopt transformer and rectifying and wave-filtering directly to transfer high-voltage alternating to low-voltage direct, volume of transformer is big in this circuit, and the oneself power consumption height;

Accompanying drawing 3 Switching Power Supply decompression principle figure

Adopt the Switching Power Supply mode to produce low-voltage direct, advantage is can export galvanic current to press, and shortcoming is the circuit cost height and self has several milliamperes current loss.

Accompanying drawing 4 power supply decompression principle figure of the present utility model

The interchange 110V or the 220V high pressure of input, by being converted to high voltage direct current behind resistance-capacitance circuit, the rectification of bridge heap, the capacitor filtering, to the capacitance three-point type circuit supply, make the capacitance three-point type self-maintained circuit produce the ac high-voltage that is not more than 200KHz and import the elementary of small-sized high frequency transformer, high frequency transformer secondary after overcoupling the output corresponding frequencies and voltage be not more than the low-tension supply of 60V, by producing stable low-voltage dc power supply behind diode rectification and the capacitor filtering.

Owing to adopt the mode of capacitance-resistance and the combination of high-frequency self-excitation oscillating phase, this reduction voltage circuit self is current sinking not substantially, when subsequent conditioning circuit at holding state, promptly do not need under the state of high-current consumption, Overall Power Consumption can reach or approach 0W.

5 one kinds of electricity-saving socket circuit diagrams of accompanying drawing

This electricity-saving socket is used for television set economize on electricity control, and inside is made up of power supply unit, voltage stabilizing circuit, relay output, current detection circuit, infrared signal testing circuit, chip intelligent control circuit, button etc.; Transfer the AC power of input to low-voltage direct by power supply unit less than 60V, produce stable low-voltage direct 24V and 5V power supply that elements such as relay and chip can be worked by voltage stabilizing circuit, chip receives waveform or the signal of button input or the current changing signal of current detection circuit input of infrared signal testing circuit input, control relay adhesive or close, thus external electrical appliance switching controlled.

Claims

1. the power supply unit of an electricity-saving socket is electrically connected in proper order by resistance-capacitance circuit, rectification, voltage stabilizing circuit, it is characterized in that the voltage stabilizing circuit input is made up of the capacitance three-point type self-maintained circuit, and output is made up of transformer step-down and filter circuit.

2. the power supply unit of electricity-saving socket according to claim 1 is characterized in that transformer is small-sized high frequency transformer.