CN201119055Y

CN201119055Y - A voltage reduction controller

Info

Publication number: CN201119055Y
Application number: CNU2007200558738U
Authority: CN
Inventors: 刘世全; 杨仁扣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-22
Filing date: 2007-08-22
Publication date: 2008-09-17
Anticipated expiration: 2017-08-22

Abstract

The utility model discloses a voltage reducing type controller, which comprises an electronic voltage reducing electric circuit and a lighting decoration controlling circuit. The utility model is characterized in that the integrated electronic voltage reducing electric circuit and the lighting decoration control circuit enable the commercial power to convert into stabilized low voltage direct current after through the electronic circuit rectification wave filtering, the power conversion, the driving control, the lower voltage rectification and voltage stabilization, to provide the stabilized low voltage direct current for the lighting decoration controlling circuit. The voltage reducing type controller has the advantages that the product cost is greatly reduced, the energy consumption is reduced, and the structure of the lighting products is greatly simplified.

Description

A kind of voltage-dropping type controller

[technical field]

The utility model relates to a kind of controller, is that the technology of a kind of electronics reducing transformer and lamp decoration controller is synthetic specifically.

[background technology]

External Christmas Day, festive air was very dense, has particularly used decorative lamp miscellaneous, has set off the happy expression in red-letter day more as our China traditional Spring Festival.The Landscape Lighting that emerges of various places also is by the light on and off of control light fixture in recent years, describes seven color cities one by one.For security consideration, the lamp that above-mentioned two kinds of occasions are used mostly adopts low-voltage, promptly reduces city's voltage supplied by transformer, by the light on and off of controller control lamp.Transformer and controller mostly are splits, and product cost height, transformer mostly adopt the iron core formula, use the energy consumption height, and volume are big, and be attractive in appearance inadequately.

[utility model content]

Be the reduction product cost, electrical energy saving, the utility model provides a kind of integrated step-down and two kinds of functions of control in a kind of voltage-dropping type controller of one.

The technical scheme that its technical problem that solves the utility model adopts is: integrated electronic reduction voltage circuit and lamp decoration control circuit comprise: insert civil power, through current rectifying and wave filtering circuit alternating current is converted to direct current; High voltage direct current behind rectifying and wave-filtering transfers safe low tension to through power conversion circuit; The Drive and Control Circuit of power controlling pipe break-make; The lower pressure rectifier filter circuit of DC power supply is provided for output; The voltage stabilizing feedback circuit of burning voltage is provided for output; The output control circuit of the flicker effect of control lamp.It is characterized in that: current rectifying and wave filtering circuit comprises full bridge rectifier circuit, the output of full bridge rectifier electrochemical capacitor that strobes in parallel; Power conversion circuit comprises high frequency switch transformer, the power switch pipe that plays on-off action that links to each other with the former limit of transformer winding, the high pressure that the resistance that links to each other with power switch pipe, electric capacity, diode constitute absorbs circuit, is connected across the electric capacity of the former secondary winding of transformer; The lower pressure rectifier filter circuit comprises diode and the electrochemical capacitor that links to each other with transformer secondary winding; Drive and Control Circuit comprises the circuits for triggering of being made up of triode, resistance, electric capacity that link to each other with power switch pipe, the RC oscillatory trigger circuit that is made of resistance, electric capacity that links to each other with power switch pipe with transformer secondary winding; The voltage stabilizing feedback circuit comprises the photoelectrical coupler that links to each other with Drive and Control Circuit, the voltage sample circuit that voltage-stabiliser tube that links to each other with photoelectrical coupler and resistance are formed; Output control circuit includes the circuit of two kinds of forms: a kind of circuit of form comprises the oscillating circuit of being made up of resistance, electric capacity, triode, and the circuit of another kind of form comprises the light output control circuit of being made up of button, electric group, control chip, triode.

The beneficial effects of the utility model are: since this voltage-dropping type controller integrated transformer and two kinds of circuit of controller, adopted the electronic circuit step-down, energy consumption is lower, and has saved necessary current rectifying and wave filtering circuit of original controller and shell, provides cost savings greatly.Thereby this voltage-dropping type controller has compact conformation, energy-conservation, advantage that cost is low.

[description of drawings]

Fig. 1 is a circuit principle structure block diagram of the present utility model;

Fig. 2 is embodiment one of the present utility model;

Fig. 3 is embodiment two of the present utility model.

[embodiment]

Below content of the present utility model is further described in conjunction with the accompanying drawings and embodiments:

With reference to Fig. 1, this figure is a circuit structure block diagram of the present utility model, comprises current rectifying and wave filtering circuit 1, power conversion circuit 2, Drive and Control Circuit 3, lower pressure rectifier filter circuit 4, voltage stabilizing feedback circuit 5, output control circuit 6.

With reference to Fig. 2, this figure is embodiment one of the present utility model:

The protective tube Fuse that direct input civil power has flow through short-circuit protection is after diode D1-D4 rectification, electrochemical capacitor E1 filtering, and the input High Level AC Voltage becomes level and smooth high voltage direct current, finishes the rectifying and wave-filtering (1) from AC-DC.

Constitute a high pressure and absorb circuit with the anodal resistance R 2 that links to each other of high voltage direct current, capacitor C 3, diode D5, when power switch pipe Q1 turn-offs, be responsible for to absorb the induced voltage on the winding of the former limit of switch transformer T, thereby prevent that high pressure is added to power switch pipe Q1 and goes up and cause puncturing; Power switch pipe Q1 is used for the former limit winding of control switch transformer T and the switching between the power supply, when break-make that former limit winding does not stop, will in switch transformer T, form the magnetic field that changes, thereby in secondary winding, produce induced voltage, finish the power transfer (2) that is input to low-voltage output from high voltage.

After the anodal resistance R 5 that links to each other of high voltage direct current reduces high voltage, offer the base current of a startup usefulness of power switch pipe Q1, and power switch pipe Q1 base stage gets electric back conducting, resistance R 3, electric conducting drags down triode Q3 base potential to triode Q2 because of base stage gets, thereby the Q1 base potential is dragged down, and capacitor C 4 has postponed This move, this will cause power switch pipe to disconnect or postpone conducting, constitute a negative feedback branch road.The resistance R 8 that links to each other with the sampling winding of switch transformer T, capacitor C 1, electrochemical capacitor E2, diode D6 constitute positive feedback branch, take out induced voltage from the sampling winding, are added on the base stage of power switch pipe, to keep vibration.Positive and negative feedback branch hockets, and has realized the drive controlling (3) to power switch pipe.

After diode D7 rectification, electrochemical capacitor E3 filtering, export low-voltage DC (4) from the secondary winding out-put supply.

Photoelectrical coupler is from the anodal sampling of output low-voltage DC, when output voltage raises, voltage-stabiliser tube ZD conducting, photoelectrical coupler IC conducting, triode Q2 base potential rising conducting, triode Q3 reduces conducting because of triode Q2 conducting base potential, power switch pipe Q1 current potential reduces and turn-offs, do not have energy to be input in the switch transformer, just controlled the rising of output voltage yet, thereby realized the voltage stabilizing feedback (5) of output voltage.

Stable low-voltage dc power supply offers output control circuit, resonator triggering and conducting and shutoff that triode Q4 is made up of resistance R 11, resistance R 12, electric capacity E5, resonator triggering and conducting and shutoff that triode Q5 is made up of resistance R 9, resistance R 10, electric capacity E4, the lamp that is connected with electric capacity E4 or E5 positive terminal is because of the turn-on and turn-off light on and off of triode, thereby realized the control (6) to output.

With reference to Fig. 3, this figure is embodiment two of the present utility model: principle of rectifying and wave-filtering (1), Power Conversion (2), drive controlling (3), lower pressure rectifier circuit (4), voltage stabilizing feedback (5) circuit module and function are with embodiment one, output control (6) part adopts lamp decoration industry control chip commonly used, lamp is carried out the control of light on and off by external triode.

The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims

1, a kind of voltage-dropping type controller is made of electronics reduction voltage circuit and lamp decoration control circuit, it is characterized in that the electronics reduction voltage circuit comprises:

Alternating current is converted to direct current, the current rectifying and wave filtering circuit of dc supply is provided for reduction voltage circuit;

The power conversion circuit that will the high voltage direct current behind rectifying and wave-filtering transfers low tension to;

The break-make of power controlling switching tube, the Drive and Control Circuit of realization Power Conversion;

Low tension after the conversion is changed into the lower pressure rectifier filter circuit of the low-voltage DC of lamp decoration control circuit work;

The low-voltage DC voltage stabilizing feedback circuit that carries out voltage stabilizing to output;

The lamp decoration control circuit comprises:

The output control circuit of the flicker effect of control lamp.

2, a kind of voltage-dropping type controller according to claim 1 is characterized in that: described output control circuit comprises the vibration output control circuit that resistance, electric capacity, triode are formed.

3, a kind of voltage-dropping type controller according to claim 1, it is characterized in that: described output control circuit comprises the light output control circuit of being made up of button, resistance, control chip, triode.

4, a kind of voltage-dropping type controller according to claim 1 is characterized in that: output control circuit is one tunnel output, two-way output, three tunnel outputs or four tunnel outputs.