CN202750269U - Bulb protector with overvoltage protection function and soft start function - Google Patents
Bulb protector with overvoltage protection function and soft start function Download PDFInfo
- Publication number
- CN202750269U CN202750269U CN 201220313662 CN201220313662U CN202750269U CN 202750269 U CN202750269 U CN 202750269U CN 201220313662 CN201220313662 CN 201220313662 CN 201220313662 U CN201220313662 U CN 201220313662U CN 202750269 U CN202750269 U CN 202750269U
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- resistance
- triode
- diode
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- bulb
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a bulb protector with an overvoltage protection function and a soft start function, comprising a bidirectional thyristor, a potentiometer, a first diode, a second diode, a third diode, a first voltage-stablizer, a second voltage-stablizer, a first triode, a second triode, a first capacitor, a second capacitor, a third capacitor, and a first resistor to an eighth resistor. When the voltage abrupt change of the electrical network is greater than AC 220V and the direct current voltage value is greater than the reverse breakdown value of the second voltage-stabiliser tube, the second voltage-stabiliser tube is broken down; the base electrode of the first triode acquires the forward bias voltage; the first triode is saturated and conducted; the second triode is cut-off; the third capacitor and the seventh resistor are combined into a time-delay network; and when the time-delay discharge is finished, the bidirectional thyristor is turned off and the bulb restores to the dark light. As the bulb protector with an overvoltage protection function and a soft start function is provided with the overvoltage protection function and the soft start function, the bulb protector with an overvoltage protection function and a soft start function has the advantages of avoiding damage cuased by voltage boosting, prolonging the service life of the bulb and saving the energy, being simple in circuit structure, and being convenient to popularize.
Description
Technical field
The utility model relates to a kind of auxiliary equipment of bulb, relates in particular to a kind of bulb protector with overvoltage protection and soft start function.
Background technology
When causing for a certain reason voltage to raise suddenly, can align the household electrical appliance that are in operation and cause in various degree damage, especially concerning the larger bulb of power, easier causing burns out bulb, severe patient even cause fire.
Summary of the invention
The purpose of this utility model provides a kind of bulb protector with overvoltage protection and soft start function with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises bidirectional thyristor, potentiometer, the first diode, the second diode, the 3rd diode, the first pressurizer, the second pressurizer, the first triode, the second triode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance to the eight resistance, the one end while of described bidirectional thyristor and the positive pole of described the first diode, the first end of described the first resistance, the first end of described the first electric capacity is connected an end and is connected with AC power, the other end of described bidirectional thyristor simultaneously with the first end of described the 8th resistance be connected the negative pole of the first diode and be connected, the second end while of described the 8th resistance and the first end of described the 3rd electric capacity, the first end of described the 6th resistance, the sliding end of described potentiometer, the first end of described potentiometer, the positive pole of described the first voltage-stabiliser tube, the first end of described the second electric capacity, the positive pole of described the 3rd diode be connected the other end of AC power and connect, the control end of described bidirectional thyristor is connected with the first end of described the 7th resistance, the second end of described the 7th resistance simultaneously with the second end of described the 3rd electric capacity be connected the emitter of the second triode and be connected, the collector electrode of described the second triode is connected with the first end of described the 3rd resistance, the base stage of described the second triode simultaneously with the first end of described the 4th resistance be connected the collector electrode of the first triode and be connected, the second end while of described the 3rd resistance and the second end of described the 4th resistance, the first end of described the 5th resistance, the negative pole of described the first voltage-stabiliser tube, the second end of described the second electric capacity be connected the negative pole of the second diode and connect, the emitter of described the first triode is connected with the second end of described the 6th resistance, the base stage of described the first triode simultaneously with the second end of described potentiometer be connected the positive pole of the second transformer and be connected, the negative pole of described the second transformer is connected with the second end of described the 5th resistance, the positive pole of described the second diode is connected with the first end of described the second resistance, the second end while of described the second resistance and the second end of described the first resistance, the second end of described the first electric capacity be connected the negative pole of the 3rd diode and connect.
Particularly, described the 8th resistance is the bulb internal resistance; Described the first triode and described the second triode are NPN type triode.
The beneficial effects of the utility model are:
The utlity model has overvoltage protection and soft start function, the utility model can be applicable to incandescent lamp and common bulb, can avoid the damage that raises and to cause because of voltage, simultaneously can to prolong the life of lamps and energy-conservation, and circuit structure is simple, is convenient to promote.
Description of drawings
Accompanying drawing is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in drawings: the utility model comprises bidirectional thyristor VS, potentiometer W, the first diode D1, the second diode D2, the 3rd diode D3, the first pressurizer DW1, the second pressurizer DW2, the first triode VT1, the second triode VT2, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the first resistance R 1 to the 8th resistance R 8, the end while of bidirectional thyristor VS and the positive pole of the first diode D1, the first end of the first resistance R 1, the first end of the first capacitor C 1 is connected an end and is connected with AC power, the other end of bidirectional thyristor VS simultaneously with the first end of the 8th resistance R 8 be connected the negative pole of diode D1 and be connected, the second end while of the 8th resistance R 8 and the first end of the 3rd capacitor C 3, the first end of the 6th resistance R 6, the sliding end of potentiometer W, the first end of potentiometer W, the positive pole of the first voltage-stabiliser tube DW1, the first end of the second capacitor C 2, the positive pole of the 3rd diode D3 is connected the other end and is connected with AC power, the control end of bidirectional thyristor VS is connected with the first end of the 7th resistance R 7, the second end of the 7th resistance R 7 simultaneously with the second end of the 3rd capacitor C 3 be connected the emitter of triode VT2 and be connected, the collector electrode of the second triode VT2 is connected with the first end of the 3rd resistance R 3, the base stage of the second triode VT2 simultaneously with the first end of the 4th resistance R 4 be connected the collector electrode of triode VT1 and be connected, the second end while of the 3rd resistance R 3 and the second end of the 4th resistance R 4, the first end of the 5th resistance R 5, the negative pole of the first voltage-stabiliser tube DW1, the second end of the second capacitor C 2 be connected the negative pole of diode D2 and connect, the emitter of the first triode VT1 is connected with the second end of the 6th resistance R 6, the base stage of the first triode VT1 simultaneously with the second end of potentiometer W be connected the positive pole of transformer DW2 and be connected, the negative pole of the second transformer DW2 is connected with the second end of the 5th resistance R 5, the positive pole of the second diode D2 is connected with the first end of the second resistance R 2, the second end while of the second resistance R 2 and the second end of the first resistance R 1, the negative pole of the second end of the first capacitor C 1 and the 3rd diode D3 connects, and the 8th resistance R 8 is the bulb internal resistance; The first triode VT1 and the second triode VT2 are NPN type triode.
As shown in drawings: the utility model directly accesses the AC220V power supply, and the first diode D1 forms halfwave rectifier when the positive half cycle of power supply, and it is half-light that bulb internal resistance (the 8th resistance R 8) both end voltage is about the brightness of 99V. bulb light.Another road power supply by 1 step-down of the first capacitor C, the second diode D2 rectification, 2 filtering of the second capacitor C, the first voltage-stabiliser tube DW1 voltage stabilizing after the work of the about 6V direct voltage of output confession control circuit, get electric rear the second triode VT2 saturation conduction, give the 3rd capacitor C 3 chargings, when the 3rd capacitor C 3 charging about 2/3 is above, the 7th resistance R 7 of flowing through triggers the G utmost point of bidirectional thyristor VS, bidirectional thyristor VS triggering and conducting, bulb brightness becomes the brightest gradually from half-light, brightness is determined by the angle of flow of time-lag action and bidirectional thyristor VS.When the line voltage sudden change is higher than AC220V, rectification circuit voltage increases, during greater than the reverse breakdown value of the second voltage-stabiliser tube DW2, the second voltage-stabiliser tube DW2 is breakdown at dc voltage value, and the first triode VT1 base stage obtains forward bias voltage, the first triode VT1 saturation conduction, the second triode VT2 cut-off, the 3rd capacitor C 3 and the 7th resistance R 7 form time delay network, behind the discharge off of delaying time, bidirectional thyristor VS turn-offs, bulb reduction half-light.The first resistance R 1 is bleeder resistance in the circuit, and the 3rd capacitor C 3 adopts the tantalum electrochemical capacitor.
Adopt power regulator during adjustment, ac voltage is transferred to more than the 220V, this moment, the second diode D2 output voltage should increase, survey the 5th resistance R 5 terminal voltages with universal instrument and be higher than 5.6V, the second voltage-stabiliser tube DW2 is punctured, and then regulator potentiometer W, make the first triode VT1 base voltage be about 0.7V, after obtaining forward bias voltage, the first triode VT1 saturation conduction, the collector electrode output low level of the first triode VT1 forces the second triode VT2 cut-off, till the bulb light brightness reduction half-light.
Claims (3)
1. bulb protector with overvoltage protection and soft start function; it is characterized in that: comprise bidirectional thyristor; potentiometer; the first diode; the second diode; the 3rd diode; the first pressurizer; the second pressurizer; the first triode; the second triode; the first electric capacity; the second electric capacity; the 3rd electric capacity; the first resistance to the eight resistance; the one end while of described bidirectional thyristor and the positive pole of described the first diode; the first end of described the first resistance; the first end of described the first electric capacity is connected an end and is connected with AC power; the other end of described bidirectional thyristor simultaneously with the first end of described the 8th resistance be connected the negative pole of the first diode and be connected; the second end while of described the 8th resistance and the first end of described the 3rd electric capacity; the first end of described the 6th resistance; the sliding end of described potentiometer; the first end of described potentiometer; the positive pole of described the first voltage-stabiliser tube; the first end of described the second electric capacity; the positive pole of described the 3rd diode be connected the other end of AC power and connect; the control end of described bidirectional thyristor is connected with the first end of described the 7th resistance; the second end of described the 7th resistance simultaneously with the second end of described the 3rd electric capacity be connected the emitter of the second triode and be connected; the collector electrode of described the second triode is connected with the first end of described the 3rd resistance; the base stage of described the second triode simultaneously with the first end of described the 4th resistance be connected the collector electrode of the first triode and be connected; the second end while of described the 3rd resistance and the second end of described the 4th resistance; the first end of described the 5th resistance; the negative pole of described the first voltage-stabiliser tube; the second end of described the second electric capacity be connected the negative pole of the second diode and connect; the emitter of described the first triode is connected with the second end of described the 6th resistance; the base stage of described the first triode simultaneously with the second end of described potentiometer be connected the positive pole of the second transformer and be connected; the negative pole of described the second transformer is connected with the second end of described the 5th resistance; the positive pole of described the second diode is connected with the first end of described the second resistance, the second end while of described the second resistance and the second end of described the first resistance; the second end of described the first electric capacity be connected the negative pole of the 3rd diode and connect.
2. the bulb protector with overvoltage protection and soft start function according to claim 1, it is characterized in that: described the 8th resistance is the bulb internal resistance.
3. the bulb protector with overvoltage protection and soft start function according to claim 1, it is characterized in that: described the first triode and described the second triode are NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313662 CN202750269U (en) | 2012-07-02 | 2012-07-02 | Bulb protector with overvoltage protection function and soft start function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313662 CN202750269U (en) | 2012-07-02 | 2012-07-02 | Bulb protector with overvoltage protection function and soft start function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750269U true CN202750269U (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313662 Expired - Fee Related CN202750269U (en) | 2012-07-02 | 2012-07-02 | Bulb protector with overvoltage protection function and soft start function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202750269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224590A (en) * | 2019-07-04 | 2019-09-10 | 泛波激光设备(杭州)有限公司 | A kind of power supply collinear circuit of laser module and indicating module |
-
2012
- 2012-07-02 CN CN 201220313662 patent/CN202750269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224590A (en) * | 2019-07-04 | 2019-09-10 | 泛波激光设备(杭州)有限公司 | A kind of power supply collinear circuit of laser module and indicating module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130702 |