CN1452444A - Light-modulating ballast interface circuit - Google Patents
Light-modulating ballast interface circuit Download PDFInfo
- Publication number
- CN1452444A CN1452444A CN 03116593 CN03116593A CN1452444A CN 1452444 A CN1452444 A CN 1452444A CN 03116593 CN03116593 CN 03116593 CN 03116593 A CN03116593 A CN 03116593A CN 1452444 A CN1452444 A CN 1452444A
- Authority
- CN
- China
- Prior art keywords
- ballast
- signal
- interface circuit
- circuit
- thyristor switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
A light-modulating interface circuit for ballast contains a light modulating interface for converting the on-state voltage generated by bidirectional SCR switching light modulator to light-modulating signal, which is input to drive controller in ballast for controlling the brightness of lamp. Its advantage is no flash generated by said drive controller.
Description
Technical field
The present invention relates to the ballast (1) that a kind of employing bi-directional thyristor switch (2) carries out the lamp light modulation.This ballast comprises:
A control Driver Circuit (15) is used for according to a dim signal brightness of lamp being controlled; Be used for the bi-directional thyristor switch output signal is converted to the dim signal that control Driver Circuit can receive with a dimming interface (4).
Background technology
The invention still further relates to the fluorescent lamp that adopts ballast involved in the present invention simultaneously.
Bi-directional thyristor switch is generally used for the brightness of incandescent lamp is regulated, and its principle is by the control to the turning part time in the whole cycle of input 220V alternating voltage, to reach the purpose of output different capacity, realizes the light modulation to incandescent lamp.But for the fluorescent lamp that adopts the ordinary electronic ballast, this method will lose efficacy and can produce adverse consequences.
The light-dimming method of electronic ballast for fluorescent lamps can adopt the driving frequency that changes ballast to realize.The generation of relevant dim signal can have multiple scheme, wherein can adopt the multisection type switch to set the frequency of Drive and Control Circuit (15) or produce different dimmer voltage and control a VCO (voltage-controlled oscillator) and adjust frequency of drives, thereby reach the light modulation purpose with potentiometer.But above method all can't be used for the frequency of bi-directional thyristor switch control ballast adjusts brightness of fluorescent lamp.
Summary of the invention
The objective of the invention is to invent a kind of dimming ballast interface circuit.
The present invention adopts the dimming interface (4) of a special use that the voltage signal that bi-directional thyristor switch produces is converted to the acceptable dim signal of Drive and Control Circuit, reach the source of the two-way controlled output signal of direct use, thereby make the ballast that adopts dimming interface circuit involved in the present invention can realize the dimming function of fluorescent lamp as dim signal.
This dimming interface circuit is made up of several sections, it can be the resistance of a 51K shown in figure one that first comprises a current drain device (7), hour produce an electric current in order to (being connected in parallel on the output of bidirectional triode thyristor) in the bi-directional thyristor switch ON time, avoid the continuous power-on and power-off of ballast driven control circuit to produce the scintillation of lamp, because the minimum ON time of bidirectional triode thyristor is bigger because of the different model difference, this circuit is strengthened the applicability of the ballast that adopts this bleeder greatly.
Second portion comprises a voltage attenuation circuit (5,6) and can be made up of for 75K resistance for 139K resistance, 6 resistance 5 shown in figure one, the attenuated output signal of bidirectional triode thyristor to the accessible scope of subsequent conditioning circuit.
Above-mentioned voltage signal outputs to third part signaling conversion circuit (8; 9; 10); this change-over circuit has two functions; the one, by device (8); can as shown be a npn triode 9013 and connect into common-base amplifier; voltage-the current converter circuit that forms; adjust the input and output impedance simultaneously; the integrality that helps signal is beneficial to the operation of subsequent conditioning circuit; output loading device (10) can be a 51K resistance; device (9) can be that a diode (IN4148) produces clamper and protective effect; make this amplifying device work in stable state; the current signal that this conversion equipment produces; go up formation voltage device 11 (can be a 27K resistance); and through the 3rd part (by 12; 13; the 14 pi type filter circuit conversion of forming become the acceptable dim signal of Drive and Control Circuit; in order to the frequency of control ballast, further control the brightness of lamp.
Adopt the ballast of above-mentioned interface circuit (4) can drive one or above fluorescent lamp, and have direct use bi-directional thyristor switch and carry out the light modulation of lamp.
Ballast of the present invention is the ballast with above-mentioned dimming interface circuit.
Fluorescent lamp of the present invention is the fluorescent lamp that has used above-mentioned ballast.
The present invention adopts the dimming interface of a special use that the voltage signal that bi-directional thyristor switch produces is converted to the acceptable dim signal of Drive and Control Circuit, reach the source of the two-way controlled output signal of direct use, thereby make the ballast that adopts dimming interface circuit involved in the present invention can realize the dimming function of fluorescent lamp as dim signal.The utility model enforcement is simple and easy, cost is not high.
Description of drawings
Fig. 1 is circuit structure enforcement figure of the present invention.1 is the ballast portion among the figure, the 2nd, bi-directional thyristor switch, the 3rd, fluorescent lamp, the 4th, dimming interface, the 5, the 6th, attenuating device, the 7th, the earial drainage device, 8, the 9th, amplify conversion equipment, the 10th, input and output impedance device, the 11st, electrorheological voltage device, 12, the 13, the 14th, filter circuit, the 15th, control Driver Circuit.
Embodiment
This dimming interface circuit is made up of several sections, first can be the resistance of a 51K shown in figure one with a current drain device (7), hour produce an electric current in order to (being connected in parallel on the output of bidirectional triode thyristor) in the bi-directional thyristor switch ON time, avoid the continuous power-on and power-off of ballast driven control circuit to produce the scintillation of lamp, because the minimum ON time of bidirectional triode thyristor is bigger because of the different model difference, this circuit adopts the applicability of the ballast of this bleeder to strengthen greatly.Second portion is made up of a voltage attenuation circuit (5,6) for 75K resistance for 139K resistance, 6 resistance 5 shown in figure one, the attenuated output signal of bidirectional triode thyristor to the accessible scope of subsequent conditioning circuit.This voltage signal outputs to third part signaling conversion circuit (8; 9; 10); this change-over circuit has two functions; the one, as shown be a npn triode 9013 by device (8) and connect into common-base amplifier; voltage one current converter circuit that forms; adjust the input and output impedance simultaneously; the integrality that helps signal is beneficial to the operation of subsequent conditioning circuit; output loading device (10) is a 51K resistance; (9) diodes of jockey (IN4148) produce clamper and protective effect simultaneously; make this amplifying device work in stable state; the current signal that this conversion equipment produces; go up formation voltage at device 11 (27K resistance); and through third part by 12; 13; the 14 pi type filter circuit conversion of forming become the acceptable dim signal of Drive and Control Circuit; in order to the frequency of control ballast, further control the brightness of lamp.
Adopt the ballast of above-mentioned interface circuit (4) can drive one or above fluorescent lamp, and have direct use bi-directional thyristor switch and carry out the light modulation of lamp.
Claims (8)
1, a kind of dimming ballast interface circuit, combine the light adjusting system of forming at least one lamp of driving (3) with a bi-directional thyristor switch (2) by ballast (1), this ballast comprises one according to the Control Driver (15) of dim signal control lamp brightness with bi-directional thyristor switch (2) output voltage is converted to the dimming interface (4) of dim signal, it is characterized in that above-mentioned dimming interface comprises is used in the bi-directional thyristor switch ON time hour keeping the earial drainage device (7) of controllable silicon conducting when promptly output voltage is low.
2, reverse-blocking tetrode thyristor ON time as claimed in claim 1 earial drainage device (7) hour is active or the passive device or the combination of these devices, it is characterized in that bi-directional thyristor switch hour provides the earial drainage loop of an electric current in ON time, avoid constantly electricity and powering on and the flicker that produces lamp down of ballast control Driver Circuit.
3, dimming interface circuit as claimed in claim 1, the device (5,6) that it is characterized in that comprising the bi-directional thyristor switch output signal that is used to decay is to produce the acceptable signal of subsequent conditioning circuit.
4, dimming interface circuit according to claim 1 is characterized in that comprising one the amplification conversion equipment (8,9) of signal transition after the above-mentioned decay for the dim signal that is directly proportional with it.
5, as conversion equipment as described in the claim 4, it is characterized in that comprising a transistor or MOS transistor (8).
6, as conversion equipment as described in the claim 4, it is characterized in that comprising a device (9) that is used for the input signal clamper.
7, a kind of ballast (1) comprises the dimming interface circuit of above-mentioned one or more described claims.
8, a kind of fluorescent lamp comprises the described ballast of above-mentioned one or more claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116593 CN100356819C (en) | 2003-04-24 | 2003-04-24 | Light-modulating ballast interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116593 CN100356819C (en) | 2003-04-24 | 2003-04-24 | Light-modulating ballast interface circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1452444A true CN1452444A (en) | 2003-10-29 |
| CN100356819C CN100356819C (en) | 2007-12-19 |
Family
ID=29222805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116593 Expired - Lifetime CN100356819C (en) | 2003-04-24 | 2003-04-24 | Light-modulating ballast interface circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100356819C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769986A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | Electronic ballast |
-
2003
- 2003-04-24 CN CN 03116593 patent/CN100356819C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769986A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | Electronic ballast |
| CN102769986B (en) * | 2011-05-06 | 2014-10-15 | 海洋王照明科技股份有限公司 | Electronic ballast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100356819C (en) | 2007-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101605413B (en) | LED drive circuit suitable for controlled silicon light adjustment | |
| CN100586240C (en) | Light emitting diode driver | |
| TW200810339A (en) | DC/DC converter having constant current output | |
| CN101836505A (en) | LED dimming apparatus | |
| CN101742766A (en) | LED light dimming method and device | |
| CN103139992A (en) | Light-emitting diode (LED) dimming driving system with silicon controlled bypass dimming circuit | |
| CN101626652A (en) | Dimmable LED constant current source driver with wide voltage range | |
| CN100435177C (en) | DC luminous network transmitting control system and DC luminous network receiving control system | |
| CN202269052U (en) | PWM dimming circuit | |
| CN204156868U (en) | A kind of emitter of driving LED car light communication | |
| CN105099567A (en) | Transmitting device of white light-based LED visible light communication system | |
| CN100356819C (en) | Light-modulating ballast interface circuit | |
| CN109890101A (en) | A kind of linear constant current circuit | |
| CN1705421A (en) | Digital remote controlled dimmer switch capable of controlling energy-saving lamp | |
| CN104955201A (en) | Illumination drive device and method therefor | |
| CN204948399U (en) | Zero-frequency dodges LED control device | |
| CN103354689A (en) | Driving power device for LED lamp dimming | |
| CN109640448B (en) | Constant current feedback control circuit | |
| CN106793348A (en) | Multifunctional LED dims Dolby circuit and LED dimming power sources | |
| CN205610994U (en) | Novel LED light adjustment circuit | |
| CN107785985B (en) | High-low frequency combined type power supply unit | |
| CN207150893U (en) | Lighting circuit and lamp | |
| CN201854480U (en) | LED (light emitting diode) phase shift dimming circuit | |
| CN201267029Y (en) | LED street lamp and drive device thereof | |
| CN102281670A (en) | Cycle control white light-emitting diode (WLED) driving chip and driving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI FUDAN MICROELECTRONICS GROUP COMPANY LIMI Free format text: FORMER OWNER: FUDAN MICROELECTRONICS CO., LTD., SHANGHAI Effective date: 20120625 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200001 HUANGPU, SHANGHAI TO: 200433 YANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120625 Address after: 200433, building 4, Fudan Science Park, No. 127 Guotai Road, Shanghai Patentee after: SHANGHAI FUDAN MICROELECTRONICS GROUP Co.,Ltd. Address before: 200001, Shanghai, Beijing East Road, No. 668, C District, 7 floor Patentee before: Shanghai Fudan Microelectronics Group Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
|
| CX01 | Expiry of patent term |