CN202135388U - Soft light modulation control electronic ballast - Google Patents
Soft light modulation control electronic ballast Download PDFInfo
- Publication number
- CN202135388U CN202135388U CN201120214721U CN201120214721U CN202135388U CN 202135388 U CN202135388 U CN 202135388U CN 201120214721 U CN201120214721 U CN 201120214721U CN 201120214721 U CN201120214721 U CN 201120214721U CN 202135388 U CN202135388 U CN 202135388U
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- CN
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- circuit
- light modulation
- control circuit
- factor correction
- power factor
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- Expired - Fee Related
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Abstract
The utility model relates to a soft light modulation control electronic ballast, comprising an EMI filter circuit, a full bridge rectification and power factor correction circuit, and a bridge type inversion circuit which are connected in sequence, wherein the input end of the EMI filter circuit is connected with an AC power supply, the output end of the bridge type inversion circuit is connected with a load circuit, the full bridge rectification and power factor correction circuit is also connected with a power factor correction control circuit, and the bridge type inversion circuit is connected with a PMW control circuit. The soft light control electronic ballast also comprises a light modulation control module and a light modulation switch, the light modulation control module is connected with a PWM control circuit, a protection control circuit is respectively connected with the power factor correction control circuit, the PWM control circuit, the light modulation control module and the load circuit, and an auxiliary power supply is respectively connected with the power factor correction control circuit, the PWM control circuit, the light modulation control module and the protection control circuit. The soft light modulation control electronic ballast controls charging and discharging slowly through the light modulation control module, realizes reliable and stabile soft light modulation, and overcomes the influence on a load during the light modulation process.
Description
Technical field
The utility model relates to a kind of electric ballast, particularly soft photocontrol electric ballast.
Background technology
In the present illuminator, ballast is indispensable part, and it is the important step that realizes electrical energy saving.At present a lot of energy-saving schemes all are to set about from the technical of ballast, and general implementation method is: according to the requirement of actual illumination occasion, regulate the output of ballast, thereby reach purpose of energy saving.Though traditional Inductive ballast can be realized pressure regulation change power output, it is simple in structure, no control circuit, thereby reliability can't ensure.And the electric ballast of existing tunable optical type basically all is to adopt direct dimming mode, and promptly when regulating, the power in the load is to change suddenly.The direct influence of this direct dimming mode is exactly the chugging in the load (bulb) of electric ballast, causes easily to turn off the light or damage bulb, influence the damage that also causes electric ballast normal useful life easily of bulb.
The utility model content
The purpose of the utility model provides a kind of electric ballast of realizing the soft photocontrol.
The technical scheme that realizes the utility model purpose is: a kind of soft photocontrol electric ballast; Include EMI filter circuit, full-bridge rectification and the circuit of power factor correction and the bridge inverter main circuit that connect successively; The input of EMI filter circuit is connected with AC power; The output of bridge inverter main circuit is connected with load circuit, and full-bridge rectification and circuit of power factor correction also are connected with power factor correction control circuit, and bridge inverter main circuit is connected with pwm control circuit; Also include dimming controlling module and connected dimmer switch; Dimming controlling module is connected with pwm control circuit; The protection control loop is connected with power factor correction control circuit, pwm control circuit, dimming controlling module and load circuit respectively, and accessory power supply is connected with power factor correction control circuit, pwm control circuit, dimming controlling module and protection control loop respectively.
The utlity model has positive effect: the utility model adopts dimming controlling module to come the frequency setting voltage of control break pwm control circuit controller; Slowly discharge and recharge control; Thereby realize soft light, overcome the not enough problem of direct light modulation reliability, both realized the light modulation of reliable and stable; Overcome of the influence of light modulation process again, ensured the useful life of bulb and the reliability of electric ballast self the load bulb.When abnormal conditions have appearred in circuit, protect by the protection control loop, can protect machine itself reliably.
Description of drawings
For the content that makes the utility model is expressly understood more easily,, the utility model is done further detailed explanation, wherein below according to specific embodiment and combine accompanying drawing
Fig. 1 shows the electrical structure functional-block diagram of the utility model soft photocontrol electric ballast.
Embodiment
See Fig. 1; The soft photocontrol electric ballast of the utility model; Include EMI filter circuit 2, full-bridge rectification and the circuit of power factor correction 3 and the bridge inverter main circuit 4 that connect successively, the input of EMI filter circuit 2 is connected with AC power 1, and the output of bridge inverter main circuit 4 is connected with load circuit 5; Full-bridge rectification and circuit of power factor correction 3 also are connected with power factor correction control circuit 6, and bridge inverter main circuit 4 is connected with pwm control circuit 7; Also include dimming controlling module 8 and connected dimmer switch 9; Dimming controlling module 8 is connected with pwm control circuit 7; Protection control loop 10 is connected with power factor correction control circuit 6, pwm control circuit 7, dimming controlling module 8 and load circuit 5 respectively, and accessory power supply 11 is connected with power factor correction control circuit 6, pwm control circuit 7, dimming controlling module 8 and protection control loop 10 respectively.
The process that this soft photoelectron ballast is realized is following:
Electric ballast is in course of normal operation; When needs are regulated power output, select corresponding power gear by dimmer switch 9, after dimming controlling module 8 receives corresponding information; Voltage controller to its inside slowly discharges and recharges; Change the controller frequency configuration voltage of pwm control circuit 7, thereby changed the operating frequency of machine, realize the order ground of frequency modulation light modulation.When power when turning down greatly, dimming controlling module 8 reduces the output voltage of builtin voltage controller gradually, thereby realizes reducing the purpose of power; Otherwise when power was big by ditty, 8 output voltages with the builtin voltage controller of dimming controlling module raise gradually, realized the purpose that power increases.Thereby realize soft light, realized the light modulation of reliable and stable, overcome of the influence of light modulation process, ensured the useful life of bulb and the reliability of electric ballast self the load bulb.When abnormal conditions have appearred in circuit, protect by the protection control loop, can protect machine itself reliably.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (1)
1. soft photocontrol electric ballast; Include EMI filter circuit (2), full-bridge rectification and the circuit of power factor correction (3) and the bridge inverter main circuit (4) that connect successively; The input of EMI filter circuit (2) is connected with AC power (1); The output of bridge inverter main circuit (4) is connected with load circuit (5), and full-bridge rectification and circuit of power factor correction (3) also are connected with power factor correction control circuit (6), and bridge inverter main circuit (4) is connected with pwm control circuit (7); It is characterized in that: also include dimming controlling module (8) and connected dimmer switch (9); Dimming controlling module (8) is connected with pwm control circuit (7); Protection control loop (10) is connected with power factor correction control circuit (6), pwm control circuit (7), dimming controlling module (8) and load circuit (5) respectively, and accessory power supply (11) is connected with power factor correction control circuit (6), pwm control circuit (7), dimming controlling module (8) and protection control loop (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120214721U CN202135388U (en) | 2011-06-23 | 2011-06-23 | Soft light modulation control electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120214721U CN202135388U (en) | 2011-06-23 | 2011-06-23 | Soft light modulation control electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202135388U true CN202135388U (en) | 2012-02-01 |
Family
ID=45524137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120214721U Expired - Fee Related CN202135388U (en) | 2011-06-23 | 2011-06-23 | Soft light modulation control electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202135388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052246A (en) * | 2012-12-30 | 2013-04-17 | 北京自动测试技术研究所 | Electronic ballast with controllable power |
-
2011
- 2011-06-23 CN CN201120214721U patent/CN202135388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052246A (en) * | 2012-12-30 | 2013-04-17 | 北京自动测试技术研究所 | Electronic ballast with controllable power |
| CN103052246B (en) * | 2012-12-30 | 2015-10-28 | 北京自动测试技术研究所 | The electric ballast that a kind of power is controlled |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20180623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |