CN209016705U

CN209016705U - A kind of voltage-suppressing circuit of ballast

Info

Publication number: CN209016705U
Application number: CN201821921649.7U
Authority: CN
Inventors: 陈祖盛; 何铭泰; 陈仪
Original assignee: Xirong Electrical Appliances (shenzhen) Co Ltd
Current assignee: Xirong Electrical Appliances (shenzhen) Co Ltd; Century Concept Ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2019-06-21
Anticipated expiration: 2028-11-21

Abstract

The utility model discloses a kind of voltage-suppressing circuits of ballast, including power supply, the positive pole is connected with triode Q1 by conducting wire, the side the triode Q1 is connected with capacitor C2 by conducting wire, the side the triode Q1 is connected with resistance wire R2 by conducting wire, the side of the resistance wire R2 far from triode Q1 is connected with transformer T4D by conducting wire, side of the transformer T4D far from resistance wire R2 is connect by conducting wire with capacitor C2, rectifier diode D2 is parallel on the resistance wire R2, the side the capacitor C2 is connected with triode Q2, the side the triode Q2 is connect with power cathode by conducting wire, transformer T3B is parallel on the capacitor C2, RCD circuit is parallel on the transformer T3B, the RCD circuit includes transformer T3A , the utility model relates to electroporation fields.A kind of voltage-suppressing circuit of ballast, it is easy to operate, the switching tube of low level voltage can be used, the compatibility of switch tube is strong.

Description

A kind of voltage-suppressing circuit of ballast

Technical field

The utility model relates to electroporation field, specially a kind of voltage-suppressing circuit of ballast.

Background technique

Ballast (ballast resistor) is the equipment for playing metering function on fluorescent lamp and generating instantaneous pressure, it is It twines enameled wire on the iron core of silicon steel production to be made, the coil of such ribbon core will when moment, ON/OFF powered on Self-induction generates high pressure, is added on the electrode (filament) at the both ends of fluorescent tube.This movement is alternately, to work as starter When (jump bubble) is closed, the filament of fluorescent tube passes through the conducting fever of ballast current limliting；When starter open circuit, ballast will self-induction It generates high pressure to be added on the both ends filament of fluorescent tube, the phosphor powder that filament launching electronics bombard tube wall shines, and starter is repeated several times On-off will be repeated several times such movement, to get through fluorescent tube.When fluorescent tube normal luminous, internal resistance becomes smaller, and starter just begins Open-circuit condition is kept eventually, and such electric current is just stable to be worked by fluorescent tube, ballast, makes fluorescent tube normal luminous.General work In push-pull ballast, can be produced on its switching tube Q2 in starting moment since work does not enter normal oscillation work also Raw some peak voltages, it is high more when than working normally, so to select the higher switching tube of pressure resistance.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of voltage-suppressing circuit of ballast, solve by In work do not enter also normal oscillation work, some peak voltages can be generated on its switching tube Q2, than work normally when it is high compared with It is more, the problem of needs using high pressure resistant switching tube.

(2) technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of voltage suppression of ballast Circuit processed, including power supply, the positive pole are connected with triode Q1 by conducting wire, and the side the triode Q1 is connected by conducting wire It is connected to capacitor C2, the side the triode Q1 is connected with resistance wire R2 by conducting wire, and the resistance wire R2 is far from triode Q1's Side is connected with transformer T4D by conducting wire, and side of the transformer T4D far from resistance wire R2 is connected by conducting wire and capacitor C2 It connects, rectifier diode D2 is parallel on the resistance wire R2, the side the capacitor C2 is connected with triode Q2, the triode The side Q2 is connect with power cathode by conducting wire, and transformer T3B, parallel connection on the transformer T3B are parallel on the capacitor C2 There is RCD circuit；

The RCD circuit includes transformer T3A, and the side the transformer T3A is connected with capacitor C4, the change by conducting wire Depressor side is connected with rectifier diode D4 by conducting wire, and the side the rectifier diode D4 is connect by conducting wire with capacitor C4, Resistance wire R4 is parallel on the capacitor C4.

Preferably, the side the transformer T3B is connected with transformer T4A by conducting wire, and side is simultaneously on the transformer T4A It is associated with capacitor C3, the side the transformer T4A is connected with capacitor C6 by conducting wire, and the side the capacitor C6 passes through conducting wire and power supply Cathode connection, the positive pole side are connected with capacitor C5 by conducting wire, and the side the capacitor C5 passes through conducting wire and capacitor C6 Connection.

Preferably, the side the transformer T4A is parallel with indicating circuit, and the indicating circuit includes transformer T4A, described The side transformer T4B is connected with capacitor C7 by conducting wire, and the capacitor side is connected with light bulb LAMP1, the light bulb LAMP1 mono- Side is connect by conducting wire with transformer T4B.

Preferably, the positive pole side is connected with resistance wire R1, and the side the resistance wire R1 is connected with capacitor C1, institute It states the side capacitor C1 to connect with power cathode, the side the resistance wire R1 is connected with rectifier diode D1, the rectifier diode The side D1 is connect with triode Q2, and the side the triode Q2 is connected with resistance wire R3, the side the resistance wire R3 by conducting wire It is connected with transformer T4C by conducting wire, the side the transformer T4C is connect by conducting wire with power cathode.

Preferably, rectifier diode Q3 is parallel on the resistance wire R3.

(3) beneficial effect

The utility model provides a kind of voltage-suppressing circuit of ballast, have it is following the utility model has the advantages that

A kind of voltage-suppressing circuit of ballast, by a RCD circuit in parallel in its current-limiting inductance, as shown in figure 1 D4, R4, C4, for high-pressure energy being absorbed due to capacitor charging when booting moment inductive drop will increase, thus Make triode or metal-oxide-semiconductor start voltage to be close with normal working voltage, the switching tube of low level voltage can be used.

Detailed description of the invention

Fig. 1 is schematic diagram after the utility model structure is improved；

Fig. 2 is that the utility model improves pre-structure schematic diagram.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of voltage-suppressing circuit of ballast, including Power supply, positive pole are connected with triode Q1 by conducting wire, and the side triode Q1 is connected with capacitor C2, triode Q1 by conducting wire Side is connected with resistance wire R2 by conducting wire, and resistance wire R2 is connected with transformer by conducting wire far from the side of triode Q1 The side of T4D, transformer T4D far from resistance wire R2 is connect by conducting wire with capacitor C2, and two poles of rectification are parallel on resistance wire R2 The side pipe D2, capacitor C2 is connected with triode Q2, and the side triode Q2 is connect with power cathode by conducting wire, in parallel on capacitor C2 There is transformer T3B, RCD circuit is parallel on transformer T3B；

RCD circuit includes transformer T3A, and the side transformer T3A is connected with capacitor C4 by conducting wire, and transformer side is logical It crosses conducting wire and is connected with rectifier diode D4, the side rectifier diode D4 is connect with capacitor C4 by conducting wire, is parallel on capacitor C4 Resistance wire R4.

The side transformer T3B is connected with transformer T4A by conducting wire, and side is parallel with capacitor C3, transformation on transformer T4A The side device T4A is connected with capacitor C6 by conducting wire, and the side capacitor C6 is connect by conducting wire with power cathode, and positive pole side is logical It crosses conducting wire and is connected with capacitor C5, the side capacitor C5 is connect by conducting wire with capacitor C6.

The side transformer T4A is parallel with indicating circuit, and indicating circuit includes transformer T4A, and the side transformer T4B is by leading Line is connected with capacitor C7, and capacitor side is connected with light bulb LAMP1, and the side light bulb LAMP1 is connect by conducting wire with transformer T4B.

Positive pole side is connected with resistance wire R1, and the side resistance wire R1 is connected with capacitor C1, the side capacitor C1 and power supply Cathode connection, the side resistance wire R1 are connected with rectifier diode D1, and the side rectifier diode D1 is connect with triode Q2, three poles The side pipe Q2 is connected with resistance wire R3 by conducting wire, and the side resistance wire R3 is connected with transformer T4C, transformer T4C by conducting wire Side is connect by conducting wire with power cathode.

Rectifier diode Q3 is parallel on resistance wire R3.

In use, by a RCD circuit in parallel in its current-limiting inductance, D4, R4, C4 as shown in figure 1, for opening When machine moment inductive drop will increase, high-pressure energy is absorbed due to capacitor charging, so that triode or metal-oxide-semiconductor be made to start Voltage is close with normal working voltage, and the switching tube of low level voltage can be used.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element ".

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of voltage-suppressing circuit of ballast, including power supply, it is characterised in that: the positive pole is connected with by conducting wire Triode Q1, the side the triode Q1 are connected with capacitor C2 by conducting wire, and the side the triode Q1 is connected with by conducting wire Resistance wire R2, the side of the resistance wire R2 far from triode Q1 are connected with transformer T4D, the transformer T4D by conducting wire Side far from resistance wire R2 is connect by conducting wire with capacitor C2, and rectifier diode D2 is parallel on the resistance wire R2, described The side capacitor C2 is connected with triode Q2, and the side the triode Q2 is connect with power cathode by conducting wire, on the capacitor C2 It is parallel with transformer T3B, is parallel with RCD circuit on the transformer T3B；

The RCD circuit includes transformer T3A, and the side the transformer T3A is connected with capacitor C4, the transformer by conducting wire Side is connected with rectifier diode D4 by conducting wire, and the side the rectifier diode D4 is connect by conducting wire with capacitor C4, described Resistance wire R4 is parallel on capacitor C4.

2. a kind of voltage-suppressing circuit of ballast according to claim 1, it is characterised in that: the transformer T3B mono- Side is connected with transformer T4A by conducting wire, and side is parallel with capacitor C3 on the transformer T4A, and the side the transformer T4A is logical It crosses conducting wire and is connected with capacitor C6, the side the capacitor C6 is connect by conducting wire with power cathode, and the positive pole side passes through Conducting wire is connected with capacitor C5, and the side the capacitor C5 is connect by conducting wire with capacitor C6.

3. a kind of voltage-suppressing circuit of ballast according to claim 2, it is characterised in that: the transformer T4A mono- Side is parallel with indicating circuit, and the indicating circuit includes transformer T4A, and the side the transformer T4B is connected with electricity by conducting wire Hold C7, the capacitor side is connected with light bulb LAMP1, and the side the light bulb LAMP1 is connect by conducting wire with transformer T4B.

4. a kind of voltage-suppressing circuit of ballast according to claim 1, it is characterised in that: the positive pole side It is connected with resistance wire R1, the side the resistance wire R1 is connected with capacitor C1, and the side the capacitor C1 is connect with power cathode, described The side resistance wire R1 is connected with rectifier diode D1, and the side the rectifier diode D1 is connect with triode Q2, the triode The side Q2 is connected with resistance wire R3 by conducting wire, and the side the resistance wire R3 is connected with transformer T4C, the transformation by conducting wire The side device T4C is connect by conducting wire with power cathode.

5. a kind of voltage-suppressing circuit of ballast according to claim 4, it is characterised in that: on the resistance wire R3 simultaneously It is associated with rectifier diode Q3.