CN1288348A - After-edge phase controlled light modulator - Google Patents
After-edge phase controlled light modulator Download PDFInfo
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- CN1288348A CN1288348A CN 00125744 CN00125744A CN1288348A CN 1288348 A CN1288348 A CN 1288348A CN 00125744 CN00125744 CN 00125744 CN 00125744 A CN00125744 A CN 00125744A CN 1288348 A CN1288348 A CN 1288348A
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- circuit
- dimmer
- lamp
- light modulator
- mos
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Abstract
The invention is related to a light modulator using after-edge phase controllation consists of a light modulating controllor, an electronic after-edge phase controllor, an active switch, an overload protective circuit and a sealed out casing. The after-edge phase controlled light modulator using MOSFET or IGBT as active switch is also called MOS or IGBT light modulator. MOS-1, MOS-2 and MOS-3 modes are suited to be used for electric network in 220-277 V and 100-277 V. Said light modulator can do modulating for not only filament lamp but also electric energy-conserving lamp, electric ballast fluorescent lamp and electric radio lamp with capacitive impedance, it is a new and high technology product to replace silicon controlled light modulator.
Description
The invention belongs to light source electronic and learn the field, is a kind of lamp dimmer.
Controllable silicon (SCR) dimmer commonly used at present belongs to the dimmer of forward position phase control, generally can only be used for incandescent lamp is carried out light modulation, can not carry out reliablely and stablely light modulation electronic energy-saving lamp, electric ballast fluorescent lamp and the electronic transformer low-voltage halogen tungsten (electronics shot-light) etc. that present capacitive reactances.
The objective of the invention is to propose a kind ofly can not only carry out light modulation, and can carry out the dimmer of reliable and stable light modulation electronic energy-saving lamp, electric ballast fluorescent lamp and the electronics shot-light etc. that present capacitive reactances to incandescent lamp.
The dimmer that the present invention proposes connects to form through circuit along phase controller, active switch, overload protecting circuit and package casing after by light adjusting controller, electronics, constitutes an integral body.
Above-mentioned light adjusting controller can be a potentiometer, realizes the stepless continuous light modulation; Also can use digital regulation resistance, realize the digitlization light modulation.
Form along phase-control circuit by Zener stabilized voltage power supply and back along phase controller behind the electronics.The Zener stabilized voltage power supply is by resistance R
5, capacitor C
1With triode Q
1Form.Can select 9013 for use as Q
1, extremely steep breakdown characteristics when utilizing its Zener breakdown can be realized little electric current voltage stabilizing, its burning voltage is V
CcAbout=7.8V, as the DC power supply of back along phase controller.The back is made up of Schmidt trigger circuit and synchronous sampling circuit along phase-control circuit.Schmidt trigger circuit can be with a 555IC time-base circuit Q
2Constitute in (other circuit that also available function with it is identical).Synchronous sampling circuit is by diode D
1～D
4, resistance R
1, R
2, R
4With potentiometer R
3Connect to form.The light modulation principle of this dimmer is as follows:
As synchronized sampling signal V
R3≤ 1/3V
CcThe time, Q
2Pin 3 output high level, active switch Q
3Saturation conduction, lamp is lighted.Work as V
R3〉=2/3V
CcThe time, Q
2Pin 3 output low levels, Q
3End, lamp extinguishes.Q
3The pulse duration of output high level is by resistance R
1～R
4Obtain sync signal amplitude V
R3Size determines.Work as V
R3＜1/3V
CcThe time, Q
2Pin 3 outputs are always high level, Q
3Saturation conduction, lamp brightness are 100%.Work as V
R3=1/3V
CcThe time, Q
2Pin 3 output low levels, Q
3End, lamp extinguishes, and just the brightness of half the time lamp is 100% in the civil power one-period, and the half the time lamp extinguishes, and mean flow rate is 50%.V
R3High more, Q
2Pin 3 output high level pulse width are narrow more, and lamp brightness is transferred darker and darker.So when regulating R
3The time, Q
3Angle of flow α realizes first order adjusting earlier between 180 ° → 90 ° and 360 ° → 270 °, the brightness of lamp is transferred to 50% from 100% quickly, realize between 90 ° to 0 ° and 270 ° to 180 ° that then stepless continuous changes, adjustable continuously the brightness of lamp from 50% to＜10%.
For dimmer is stably worked, Q
3The angle of flow must with input civil power V
iPositive-negative half-cycle keep synchronously, for this reason specialized designs with the synchronous sample circuit of 50Hz civil power positive-negative half-cycle.This sync signal is by D
1～D
4The 100Hz forward pulsating voltage that produces after the full-wave rectification is again through R
1With R
2After the dividing potential drop by light adjusting controller R
3Center head obtains V
R3, in order to trigger Q
2555 IC Schmidt triggers, 2,6 pin, the time length that lamp is lighted is by V
R3The amplitude size is carried out the back and is determined along phase control.
Overload protecting circuit is by controllable silicon SCR, resistance R
8And R
9, capacitor C
4Connect to form.When normal load, flow through Q
3Electric current I
DSOAt R
9On pressure drop V
R9=I
DSOR
9, through R
8With C
4The voltage that is added in the SCR trigger electrode after the delay filtering is just less than its triggering and conducting voltage, and SCR ends.When overload, flow through Q
3Electric current I
DS＞I
DSO, SCR is with regard to triggering and conducting, Q
2Pin 4 preferential reset (V
CcAlso reset simultaneously), 3 pin output low levels are closed Q rapidly
3, reach the overload protection purpose.Powered-down is got rid of after the overload, recloses power supply and just can recover operate as normal.R
8, C
4Play the capacitance-resistance delayed action, when overloading in the electronic energy-saving lamp pipeline start up by preheating short time, overload protecting circuit is failure to actuate, and transships after 5 seconds as still, and then overload protecting circuit is just Q
2The output reset shields.
Fig. 1 has provided a kind of electrical schematic diagram of dimmer of the present invention, i.e. 220V MOS-1 type dimmer electrical schematic diagram.
Shown in Figure 2 is 220V MOS-2 type dimmer electrical schematic diagram, with the main difference of MOS-1 type be Q
2Be designed to single-shot trigger circuit, work as Q
2Pin 2 synchronous triggering signals are lower than 1/3V
CcThe time, from Q
2Pin 3 output high level make Q
3Saturation conduction, lamp is lighted.Meanwhile, V
CcPass through R
3And R
4To C
2V is worked as in charging
C2〉=2/3V
CcThe time, from Q
2Pin 3 output low levels are closed Q
3, lamp extinguishes.Q
2The pulse duration of pin 3 output high level is:
T
d=1.1 (R
3+ R
4) C
2(1) in order to guarantee that dimmer reliablely and stablely works T
dShould suitably choose.And R
3+ R
4Calculate by (1) formula, work as R
4=0 o'clock,
R
3=T
d/1.1C
2……(2)
So when regulating R
3The time, Q
3Angle of flow α can change between 180 ° to 0 ° and 360 ° to 180 ° continuously, and lamp also just can be adjustable continuously between the brightest (100%) to the darkest (＜10%).
Shown in Figure 3 is the MOS-3 type dimmer electrical schematic diagram that is applicable to 100～277V electrical network, this circuit the back along having designed one between phase controller and the active switch by D
7～D
10Bridge-type automatic reverse switch and the buffer circuit formed, this buffer circuit can be photoelectrical coupler Q
4, also can be other identical buffer circuit of function with it.Meanwhile, the Zener stabilized voltage power supply will be designed to V
Cc=DC 8V can flow out the 60mA electric current at least, uses for the back and uses along phase controller.The characteristics of this circuit are by load R
LThe electric current of (lamp) is to exchange.When civil power was positive half cycle, electric current was from a → R
L→ D
8→ Q
3→ R
9→ D
10→ b; When civil power was negative half period, electric current was from b → D
7→ Q
3→ R
9→ D
9→ R
L→ a.So MOS-3 type dimmer also can carry out light modulation to the electricity-saving lamp of the multiplication of voltage type electric ballast that uses in 100～127V low-voltage electrical network.The other parts operation principle is identical with the MOS-2 type, here no longer narration.
The present invention adopts one 555 integrated time-base circuit Q
2(or other identical circuit of function) with it and an active switch device Q
3Constituted back dimmer along phase control.Q
3Can adopt MOSFET or IGBT, corresponding dimmer claims MOS dimmer or IGBT dimmer again.
The characteristics of this dimmer are:
1. applied range: this dimmer not only can carry out light modulation to incandescent lamp, and electronic energy-saving lamp, electric ballast fluorescent lamp and the electronics shot-light etc. that present capacitive reactances are carried out reliablely and stablely light modulation, the history that these lamps can not use dimmer (as the SCR dimmer) to carry out light modulation in use that is through with has further been opened up the range of application of these lamps.
2. dimming behavior is good: dimming scope is wide, thereafter along phase place adjustable continuously between 360 ° to 180 ° of 180 ° to 0 ° of the positive half cycles of civil power and the negative half periods, can reliablely and stablely be transferred to the most comfortable illumination of eyes, can reduce fatigue, increase work efficiency.
3. energy savings: the use of high-power electronic energy-saving lamp, electric ballast fluorescent lamp and electronics shot-light is more and more, when not needing too high brightness, can use this dimmer that the brightness of lamp is transferred, and reaches power savings.
4. easy to use: as long as civil power is inserted the input of this dimmer, its output termination is transferred lamp, and lamp can independently install to any place of adorning wanted.
5. disturb little: because this dimmer adopts the back to carry out light modulation along the phase control principle, source current to zero (and SCR dimmer power electric current is from zero conducting electric current that jumps bigger), can not produce big surge current to the velocitron that presents capacitive reactances from bigger conducting electric current bust.So it is less to produce interference when this dimmer carries out light modulation to electronic energy-saving lamp, electric ballast fluorescent lamp and electronics shot-light etc.
6. cost is lower: modern design of the present invention, skilfully use one 555 time-base integrated circuit and a MOSFET and other less peripheral component, and cost is low, and producer price is close with the SCR dimmer, has the very high ratio of performance to price and the market competitiveness.
Fig. 1 is a 220V MOS-1 dimmer electrical schematic diagram.
Fig. 2 is a 220V MOS-2 dimmer electrical schematic diagram.
Fig. 3 is 100～277V MOS-3 dimmer electrical schematic diagram.
Embodiment:
With 220V MOS-1 dimmer is example, its electrical schematic diagram as shown in Figure 1, the components and parts value is: Vi:220V 50Hz C
1: CD11 100 μ F/16Fs:1A/250V C
2: CH111 47nF/63D
1-D
4: 1N4007 C
3: CH111 10nF/63R
1: RT14 0.25W 240K Ω C
4: CD11 47 μ F/16R
3: RT14 0.25W 22K Ω Q
1: S9013R
3+ R
4: WXD3-13 22K Ω Q
2: NE555R
5: 2 1W 100K Ω Q in parallel
3: (1) IRF820 (60W) (2) IRF830 (100W) R
6, R
8: RT14 0.25W 5.1K Ω (3) IRF840 (200w) (4) IGBT (1000W) R
7: RT14 0.25W 360K Ω SCR:BT169 (V
AK＞50V) R
9: RT14 0.25W 0.5～2 Ω R
L: the modulated light bulb
(1)≤60w (2)≤100W
(3)≤200w (4)≤1000w
Promptly obtain 220V MOS-1 type dimmer after installing by general fashion.
Claims (8)
1. lamp after-edge phase controlled light modulator; by connecting to form through circuit along phase controller, active switch, overload protecting circuit and package casing behind light adjusting controller, the electronics; it is characterized in that forming along phase-control circuit by Zener stabilized voltage power supply and back along phase controller behind the electronics, by resistance R
5, capacitor C
1With triode Q
1Form the Zener stabilized voltage power supply, its burning voltage V
CcAs the DC power supply of back along phase controller, connect to form through circuit by Schmidt trigger circuit and synchronous sampling circuit along phase-control circuit behind the electronics, synchronous sampling circuit is by diode D
1-D
4, resistance R
1, R
2, R
4With potentiometer R
3Connect to form through circuit.
2. dimmer according to claim 1 is characterized in that described Schmidt trigger circuit adopts 555 IC time-base circuit Q
2
3. dimmer according to claim 1 is characterized in that adopting 555 IC time-base circuit Q along phase-control circuit by one behind the described electronics
2The single-shot trigger circuit that constitutes is formed.
4. according to the described dimmer of claim 1 to 3, it is characterized in that overload protecting circuit is by controllable silicon SCR, resistance R
8And R
9, capacitor C
4Connect to form through circuit.
5. according to the described dimmer of claim 1 to 3, it is characterized in that light adjusting controller R
3It is a common potentiometer.
6. according to the described dimmer of claim 1 to 3, it is characterized in that light adjusting controller R
3Adopt a digital regulation resistance.
7. dimmer according to claim 1 is characterized in that the back is along designing by a bridge-type automatic reverse switch and a buffer circuit of being made up of diode D7～D10 between phase-control circuit and the active switch.
8. dimmer according to claim 7 is characterized in that said buffer circuit is a photoelectrical coupler, or other identical buffer circuit of function with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125744 CN1133356C (en) | 2000-10-24 | 2000-10-24 | After-edge phase controlled light modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125744 CN1133356C (en) | 2000-10-24 | 2000-10-24 | After-edge phase controlled light modulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1288348A true CN1288348A (en) | 2001-03-21 |
| CN1133356C CN1133356C (en) | 2003-12-31 |
Family
ID=4591528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00125744 Expired - Fee Related CN1133356C (en) | 2000-10-24 | 2000-10-24 | After-edge phase controlled light modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1133356C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440707C (en) * | 2002-01-10 | 2008-12-03 | 照明技术电子工业有限公司 | Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise |
| CN102386781A (en) * | 2010-09-02 | 2012-03-21 | 英飞特电子（杭州）有限公司 | Three-line light modulator |
| CN101715266B (en) * | 2009-11-05 | 2012-11-28 | 英飞特电子（杭州）股份有限公司 | Circuit applicable to silicon controlled rectifier dimming under alternating current capacitive load |
| WO2013170727A1 (en) * | 2012-05-17 | 2013-11-21 | Yung Pun Cheng | Trailing-edge-phase-controlled light modulating circuit |
| WO2015196832A1 (en) * | 2014-06-26 | 2015-12-30 | Zhejiang Shenghui Lighting Co.,Ltd | Power circuit and related method for led lighting device |
| CN105898938A (en) * | 2014-11-24 | 2016-08-24 | 李顺华 | Driving circuit of ballast type LED lamp |
| US9699850B1 (en) | 2013-06-27 | 2017-07-04 | Zhejiang Shenghui Lighting Co., Ltd | Power circuit and related method for LED lighting device |
| CN111465141A (en) * | 2020-04-09 | 2020-07-28 | 深圳市时誉高精科技有限公司 | Alternating-current multi-path mutual-control dimmer |
-
2000
- 2000-10-24 CN CN 00125744 patent/CN1133356C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440707C (en) * | 2002-01-10 | 2008-12-03 | 照明技术电子工业有限公司 | Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise |
| CN101715266B (en) * | 2009-11-05 | 2012-11-28 | 英飞特电子（杭州）股份有限公司 | Circuit applicable to silicon controlled rectifier dimming under alternating current capacitive load |
| CN102386781A (en) * | 2010-09-02 | 2012-03-21 | 英飞特电子（杭州）有限公司 | Three-line light modulator |
| CN102386781B (en) * | 2010-09-02 | 2014-05-28 | 英飞特电子（杭州）股份有限公司 | Three-line light modulator |
| WO2013170727A1 (en) * | 2012-05-17 | 2013-11-21 | Yung Pun Cheng | Trailing-edge-phase-controlled light modulating circuit |
| US9326353B2 (en) | 2012-05-17 | 2016-04-26 | Yung Pun Cheng | Trailing-edge-phase-controlled light modulating circuit |
| US9699850B1 (en) | 2013-06-27 | 2017-07-04 | Zhejiang Shenghui Lighting Co., Ltd | Power circuit and related method for LED lighting device |
| WO2015196832A1 (en) * | 2014-06-26 | 2015-12-30 | Zhejiang Shenghui Lighting Co.,Ltd | Power circuit and related method for led lighting device |
| CN105898938A (en) * | 2014-11-24 | 2016-08-24 | 李顺华 | Driving circuit of ballast type LED lamp |
| CN111465141A (en) * | 2020-04-09 | 2020-07-28 | 深圳市时誉高精科技有限公司 | Alternating-current multi-path mutual-control dimmer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1133356C (en) | 2003-12-31 |
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