CN206759329U - A kind of smoother doube bridge power supply of output voltage - Google Patents
A kind of smoother doube bridge power supply of output voltage Download PDFInfo
- Publication number
- CN206759329U CN206759329U CN201720636637.9U CN201720636637U CN206759329U CN 206759329 U CN206759329 U CN 206759329U CN 201720636637 U CN201720636637 U CN 201720636637U CN 206759329 U CN206759329 U CN 206759329U
- Authority
- CN
- China
- Prior art keywords
- rectifier bridge
- contact
- bridge
- output end
- live wire
- 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.)
- Expired - Fee Related
Links
Landscapes
- Rectifiers (AREA)
Abstract
A kind of smoother doube bridge power supply of output voltage, by inductance, first rectifier bridge, second rectifier bridge, filter capacitor, circuit board, live wire contact, zero line contact, positive pole output contact, negative pole output contact forms, inductance is accessed between live wire contact and an input of the first rectifier bridge, another input of first rectifier bridge is connected with zero line contact, two inputs of the second rectifier bridge respectively with live wire contact, zero line contact connects, the cathode output end of first rectifier bridge, the cathode output end of second rectifier bridge, the positive pole of filter capacitor is connected with positive pole output contact, the cathode output end of first rectifier bridge, the cathode output end of second rectifier bridge, the negative pole of filter capacitor is connected with negative pole output contact；Scheme of the present utility model is employed, overcomes existing rectification filtering power to be used for the shortcomings that output voltage fluctuation is larger when LED illuminates, particularly suitable as compact LED driving power.
Description
Art
A kind of rectification filtering power is the utility model is related to, it is especially a kind of to use inductance and there are two rectifier bridge rectifications
AC-DC power supply, the power supply is generally used for compact LED lamp as driving power.
Background technology
At present, AC power inversion of direct current power supply, with the most use is current rectifying and wave filtering circuit, is exactly to use inside whole with four
Alternating current is changed into Rectified alternating current by one rectifying full bridge of stream diode, is then filtered using electrochemical capacitor, is more put down
Sliding direct current, because the circuit cost is cheap, present part LED using the power supply of the structure as driving power, for
LED, it is desirable to which electric power output voltage fluctuates the smaller the better, if the current rectifying and wave filtering circuit is used for into LED illumination, it exports electricity
Pressure fluctuation or it is larger, have impact on the illuminating effect of LED, at least voltage pulsation is bigger, and stroboscopic is also bigger.
Utility model content
In order to overcome existing rectification filtering power to be used for when LED illuminates, output voltage fluctuation is larger, influences the photograph of LED
The shortcomings that obvious results fruit, the utility model proposes a kind of smoother doube bridge power supply of output voltage to solve this problem, its is positive
Effect is：Using a kind of smoother doube bridge power supply of output voltage, the fluctuation of its voltage output is obviously reduced, and is particularly suitable for LED
Use.
Technical scheme is used by the utility model solves its technical problem：
The smoother doube bridge power supply of a kind of output voltage of the present utility model, by inductance, the first rectifier bridge, the second rectification
Bridge, filter capacitor, circuit board, live wire contact, zero line contact, positive pole output contact, negative pole output contact composition, in live wire contact
Access inductance, another input of the first rectifier bridge are connected with zero line contact between an input of the first rectifier bridge,
Two inputs of the second rectifier bridge are connected with live wire contact, zero line contact respectively, the cathode output end of the first rectifier bridge, second
The cathode output end of rectifier bridge, the positive pole of filter capacitor are connected with positive pole output contact, the cathode output end of the first rectifier bridge,
The cathode output end of two rectifier bridges, the negative pole of filter capacitor are connected with negative pole output contact.
The technical solution adopted in the utility model will coordinate accompanying drawing to elaborate in a particular embodiment.
Brief description of the drawings
Here is the brief description of accompanying drawing.
Fig. 1 is a kind of smoother doube bridge power circuit principle figure of output voltage of the present utility model.
1. AC power in figure, 2. inductance, 3. first rectifier bridges, 4. second rectifier bridges, 5. filter capacitors, 6. loads.
Fig. 2 is a kind of smoother doube bridge source element layout drawing of output voltage of the present utility model.
2. inductance in figure, 3. first rectifier bridges, 4. second rectifier bridges, 5. filter capacitors, 7. circuit boards, 8. live wire contacts,
9. zero line contact, 10. positive pole output contacts, 11. negative pole output contacts.
Embodiment
We are further illustrated exemplified by implementing a kind of smoother doube bridge power supply of output voltage with reference to accompanying drawing：
Fig. 1 is a kind of smoother doube bridge power circuit principle figure of output voltage of the present utility model.AC power 1 in figure
For 220 volts common of AC power, inductance 2 is the inductance of ribbon core, and its one end is connected with the live wire of AC power 1, separately
One end is connected with the input of the first rectifier bridge 3, and another input of the first rectifier bridge 3 is connected with the zero line of AC power 1,
Two inputs of the second rectifier bridge 4 are connected respectively on the live wire and zero line of AC power 1, the first rectifier bridge 3 and second whole
The positive pole for flowing the cathode output end and filter capacitor 5 of bridge 4 is linked together, and cathode output end is connected with the negative pole of filter capacitor 5
Together, that is, two rectifying full bridges are employed work together and powered for filter capacitor 5.Its operation principle is：Second rectification
Bridge 4 works by common current rectifying and wave filtering circuit, is charged to filter capacitor, but the magnitude of voltage of AC power 1 is less than on filter capacitor
During voltage（Ignore the pressure drop of rectifier bridge）, electric capacity can not obtain the electric energy of AC power 1 completely, because inductance 2 is gone here and there first
The input of rectifier bridge 3, the phase angle of the electric current of inductance is than 90 degree of voltage delay, even if AC power 1 can not pass through
Two rectifier bridges 4 are charged to filter capacitor 5, but the electric current in inductance 2 can not be mutated, the electric current by the first rectifier bridge 3 continue to
Filter capacitor 5 charges, and voltage too fast decline because of the use of load 6 on filter capacitor 5 is prevented, through experiment, in AC power 1
In the case that string has a current-limiting resistance and bringing onto load 6 before 220 volts of standard, power supply, without using the first rectifier bridge 3 and electricity
Sense 2, measures output voltage and changes between 165 volts -236 volts, and difference is 71 volts between maxima and minima, is added
In the case of entering the first rectifier bridge 3 and inductance 2, output voltage changes between 189 volts -238 volts, maximum and minimum
Difference is 49 volts between value, and output voltage fluctuation is improved significantly.
Fig. 2 is a kind of smoother doube bridge source element layout drawing of output voltage of the present utility model, inductance 2, in figure
One rectifier bridge 3, the second rectifier bridge 4, filter capacitor 5 are arranged on one piece of square circuit board 7, because circuit specifically arranges that trend will
Pass through that element is bad to be drawn, so not drawing physical circuit, Fig. 1 circuit diagram system is pressed in the circuit connection of circuit board in fact completely
Make, element in welding, this be those of ordinary skill will work, be just no longer discussed in detail circuit board manufacturing process and
Technique.In order to easy to connect, on circuit board 7, live wire contact 8, zero line contact 9, positive pole output contact 10, negative pole are also arranged
Output contact 11, it is to connect the live wire of AC power 1, zero line and load 6, connected mode：It is whole in live wire contact 8 and first
Access inductance 2, another input of the first rectifier bridge 3 are connected with zero line contact 9 between one input of stream bridge 3, and second
Two inputs of rectifier bridge 4 are connected with live wire contact 8, zero line contact 9 respectively, the cathode output end of the first rectifier bridge 3, second
The cathode output end of rectifier bridge 4, the positive pole of filter capacitor 5 are connected with positive pole output contact 10, the negative pole output of the first rectifier bridge 3
End, the cathode output end of the second rectifier bridge 4, the negative pole of filter capacitor 5 are connected with negative pole output contact 11.
Element selects：Inductance selects ring inductance, and inductance value is more than 300 microhenrys, certainly in economy permission and position
The situation of permission, big some effects of inductance are quite a lot of, and the first rectifier bridge 3 and the second rectifier bridge 4 are from 1A, 600V full-bridge, filtering
Electric capacity 6 selects 400V, 10UF electrochemical capacitor, and load 6 is from the high-voltage LED lamp bead string that can be directly operated in 220 volts.
The example of low-power LED is only intended to above, if to be used for elsewhere, component parameters will as the case may be
Change.
Claims (1)
- A kind of 1. smoother doube bridge power supply of output voltage, by inductance（2）, the first rectifier bridge（3）, the second rectifier bridge（4）, filtering Electric capacity（5）, circuit board（7）, live wire contact（8）, zero line contact（9）, positive pole output contact（10）, negative pole output contact（11）Group Into, it is characterized in that：In live wire contact（8）With the first rectifier bridge（3）An input between access inductance（2）, the first rectification Bridge（3）Another input and zero line contact（9）Connection, the second rectifier bridge（4）Two inputs respectively with live wire contact （8）, zero line contact（9）Connection, the first rectifier bridge（3）Cathode output end, the second rectifier bridge（4）Cathode output end, filtering Electric capacity（5）Positive pole and positive pole output contact（10）Connection, the first rectifier bridge（3）Cathode output end, the second rectifier bridge（4）'s Cathode output end, filter capacitor（5）Negative pole and negative pole output contact（11）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720636637.9U CN206759329U (en) | 2017-06-04 | 2017-06-04 | A kind of smoother doube bridge power supply of output voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720636637.9U CN206759329U (en) | 2017-06-04 | 2017-06-04 | A kind of smoother doube bridge power supply of output voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759329U true CN206759329U (en) | 2017-12-15 |
Family
ID=60622294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720636637.9U Expired - Fee Related CN206759329U (en) | 2017-06-04 | 2017-06-04 | A kind of smoother doube bridge power supply of output voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206759329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891347A (en) * | 2018-09-05 | 2020-03-17 | 华润矽威科技（上海）有限公司 | Linear LED driving system, linear booster circuit and method |
| CN113819449A (en) * | 2021-09-22 | 2021-12-21 | 深圳市万瑞和电子有限公司 | PPTC self-recovery fuse type self-adaptive anti-flash LED lighting circuit system |
-
2017
- 2017-06-04 CN CN201720636637.9U patent/CN206759329U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891347A (en) * | 2018-09-05 | 2020-03-17 | 华润矽威科技（上海）有限公司 | Linear LED driving system, linear booster circuit and method |
| CN110891347B (en) * | 2018-09-05 | 2021-09-14 | 华润微集成电路(无锡)有限公司 | Linear LED driving system, linear booster circuit and method |
| CN113819449A (en) * | 2021-09-22 | 2021-12-21 | 深圳市万瑞和电子有限公司 | PPTC self-recovery fuse type self-adaptive anti-flash LED lighting circuit system |
| CN113819449B (en) * | 2021-09-22 | 2024-02-09 | 深圳市万瑞和电子有限公司 | Self-adaptive anti-flash LED lighting circuit system comprising self-recovery fuse |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103327694B (en) | Silicon controlled dimming LED drive circuit | |
| CN105527524A (en) | Indication circuit for switch power supply and usage method | |
| CN107979899A (en) | A kind of linear general pump feeds constant-current circuit and has its LED light | |
| CN203313500U (en) | Silicon controlled dimming LED driving circuit | |
| CN206759329U (en) | A kind of smoother doube bridge power supply of output voltage | |
| CN203883691U (en) | Current zero-crossing point detection circuit, drive circuit, and switching power supply | |
| CN203181299U (en) | Constant-current driving circuit structure for small-power lamps | |
| CN203136240U (en) | Wide-range constant-current LED power supply VCC drive circuit | |
| CN202396059U (en) | Led driving power supply | |
| CN202679247U (en) | Switch power supply circuit and set-top box | |
| CN206302600U (en) | A kind of high-voltage LED light bar driving power supply and its high-voltage LED light bar of application | |
| CN207304996U (en) | Alternating current and direct current automatic switchover LED light | |
| CN204578382U (en) | A kind of single-chip switching stabilized voltage power supply | |
| CN106602861B (en) | Improve the control circuit of Active PFC transfer efficiency | |
| CN205005320U (en) | Driving circuit of light -emitting diode (LED) fluorescent tube | |
| CN204652709U (en) | The linear LED drive power of dividing potential drop rectification falls in non-polar condenser | |
| CN203563251U (en) | Alternating-current and direct-current integrated control power supply | |
| CN206118104U (en) | LED drive circuit based on two charge pump circuit | |
| CN201491314U (en) | Driver circuit for LED fluorescent lamp | |
| CN207995445U (en) | A kind of linear general pump feed constant-current circuit and the LED light with it | |
| CN207200609U (en) | Flow-regulating type electric motor electricity saver | |
| CN204190974U (en) | Single-stage PFC isolated form former limit feedback LED Drive and Control Circuit | |
| CN201742601U (en) | Stabilized power supply of light-emitting diode lamp | |
| CN204761769U (en) | LED control circuit | |
| CN204119615U (en) | The circuit of line voltage detecting is realized based on zero passage detection pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20200604 |