CN205901616U - Be applied to wide voltage power supply circuit of fan or thermantidote - Google Patents
Be applied to wide voltage power supply circuit of fan or thermantidote Download PDFInfo
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- CN205901616U CN205901616U CN201620910663.1U CN201620910663U CN205901616U CN 205901616 U CN205901616 U CN 205901616U CN 201620910663 U CN201620910663 U CN 201620910663U CN 205901616 U CN205901616 U CN 205901616U
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Abstract
The utility model discloses a wide voltage power supply circuit of fan or thermantidote, including consecutive insurable circuit, EMC circuit, rectification filter circuit, PWM on -off control transducing circuit and energy storage voltage stabilizing circuit, PWM on -off control transducing circuit includes PWM control chip U1, electric capacity EC3, resistance R5, resistance R6, electric capacity C2, electric capacity C3 and diode D3, and energy storage voltage stabilizing circuit includes inductance L2, diode D4, electric capacity EC4 and resistance R7, electric capacity C2, electric capacity C3 are respectively through ground connection behind the reverse diode D4 who arranges, and diode D4's positive pole is continuous through electric capacity EC4 and direct current 5V's the switch impulse output terminal that switch impulse output terminal links to each other, the negative pole passes through inductance L2 and direct current 5V, and direct current 5V's switch impulse output terminal passes through resistance R7 ground connection. The utility model has the advantages of DC85 275V input voltage is general, stabilization of output is level and smooth, the energy consumption is hanged down, accord with national efficiency standard.
Description
Technical field
This utility model is related to fan and cooling fan and in particular to a kind of Width funtion power supply for fan or cooling fan is electric
Road.
Background technology
The current Width funtion power circuit for fan or cooling fan is in the majority using Industrial Frequency Transformer, 110v and 220v is not
Can be general, when voltage is used for standard with 220v, can not use less than 180v；When voltage is used for standard with 110v, low
Can not use in 90v, energy consumption is more than 0.5 watt of international standard, does not meet Energy Efficiency Standard.
Utility model content
The technical problems to be solved in the utility model is: for above-mentioned technical problem, provides a kind of dc85-275v input electricity
Pressure is general, output voltage stabilization smooths, energy consumption is low, meet the Width funtion power supply for fan or cooling fan of national performance criteria
Circuit.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of Width funtion power circuit for fan or cooling fan, including the insurance circuit being sequentially connected, emc circuit,
Current rectifying and wave filtering circuit, pwm on-off control transducing circuit and energy-storage voltage stabilizing circuit.
Described pwm on-off control transducing circuit includes pwm control chip u1, electric capacity ec3, resistance r5, resistance r6, electric capacity
C2, electric capacity c3 and diode d3, the sw end of pwm control chip u1 is connected with the outfan of current rectifying and wave filtering circuit, pwm control chip
The vdd end of u1 is sequentially connected in series the switching pulse outfan after the diode d3 of resistance r5, reversed arrangement as direct current 5v, and direct current
The switching pulse outfan of 5v is connected with the zero line n of alternating current power supply bus, and electric capacity c2 ground connection, the other end are passed through in one end of resistance r5
It is grounded by electric capacity c3, the vdd end of pwm control chip u1 is grounded by resistance r6, No. 1 terminal of pwm control chip u1 passes through
Electric capacity ec3 is grounded；Described energy-storage voltage stabilizing circuit includes inductance l2, diode d4, electric capacity ec4 and resistance r7, described electric capacity c2, electricity
Hold c3 to be grounded after the diode d4 of reversed arrangement respectively, and the positive pole of diode d4 passes through opening of electric capacity ec4 and direct current 5v
Pass pulse output end is connected, negative pole is connected with the switching pulse outfan of direct current 5v by inductance l2, the switching pulse of direct current 5v
Outfan is grounded by resistance r7.
Described emc circuit includes varistor rv1, electric capacity c1, resistance r2 and resistance r3, described varistor rv1, electric capacity
C1 is connected in parallel between the alternating current power supply bus of input, in parallel with electric capacity c1 again after described resistance r2 and resistance r3 series connection.
Described current rectifying and wave filtering circuit include resistance r1, resistance r4, diode d1, diode d2, electric capacity ec1, electric capacity ec2 and
Inductance l1, resistance r1, diode d1, diode d2, inductance l1 are sequentially connected in series on the live wire l of alternating current power supply bus, inductance l1
One end be connected with the zero line n of alternating current power supply bus by electric capacity ec1, the other end passes through electric capacity ec2 and alternating current power supply bus
Zero line n is connected, and resistance r4 and inductance l1 is connected in parallel.
This utility model has an advantage that the insurance circuit, emc circuit, rectification that this utility model includes being sequentially connected
Filter circuit, pwm on-off control transducing circuit and energy-storage voltage stabilizing circuit, can be dc120 by pwm on-off control transducing circuit
The high pressure of～400v become dc5v about switching pulse, and in energy-storage voltage stabilizing circuit resistance r7 composition accumulator and 5v steady
Volt circuit, be responsible for dc5v about switching pulse energy be first stored in inductance l2, then again with diode d4, electric capacity ec4,
Resistance r7 changes into smooth DC voltage the energy being stored in inductance l2 jointly, have dc85-275v input voltage general,
The advantage that output voltage stabilization smooths, energy consumption is low, meet national performance criteria.
Brief description
Fig. 1 is the circuit theory schematic diagram of this utility model embodiment.
Fig. 2 is the circuit theory schematic diagram of this utility model embodiment.
Specific embodiment
As shown in figure 1, the Width funtion power circuit that the present embodiment is used for fan or cooling fan includes the insurance that is sequentially connected
Circuit, emc circuit, current rectifying and wave filtering circuit, pwm on-off control transducing circuit and energy-storage voltage stabilizing circuit.
As shown in Fig. 2 pwm on-off control transducing circuit include pwm control chip u1, electric capacity ec3, resistance r5, resistance r6,
Electric capacity c2, electric capacity c3 and diode d3, the sw end of pwm control chip u1 is connected with the outfan of current rectifying and wave filtering circuit, and pwm controls
The vdd end of chip u1 is sequentially connected in series the switching pulse outfan after the diode d3 of resistance r5, reversed arrangement as direct current 5v, and
The switching pulse outfan of direct current 5v is connected with the zero line n of alternating current power supply bus, and one end of resistance r5 is passed through electric capacity c2 and is grounded, separately
One end is grounded by electric capacity c3, and the vdd end of pwm control chip u1 is grounded by resistance r6, No. 1 terminal of pwm control chip u1
It is grounded by electric capacity ec3；Energy-storage voltage stabilizing circuit includes inductance l2, diode d4, electric capacity ec4 and resistance r7, electric capacity c2, electric capacity c3
It is grounded after the diode d4 of reversed arrangement respectively, and the positive pole of diode d4 passes through the switch arteries and veins of electric capacity ec4 and direct current 5v
Rush that outfan is connected, negative pole is connected with the switching pulse outfan of direct current 5v by inductance l2, the switching pulse of direct current 5v exports
End is grounded by resistance r7.The present embodiment can be become the high pressure of dc120～400v by pwm on-off control transducing circuit
Dc5v about switching pulse, and the resistance r7 composition accumulator and 5v mu balanced circuit in energy-storage voltage stabilizing circuit, responsible
Dc5v about switching pulse energy be first stored in inductance l2, then again with diode d4, electric capacity ec4, resistance r7 handle jointly
The energy being stored in inductance l2 changes into smooth DC voltage, has that dc120～400v input voltage is general, output voltage is steady
Allocate the advantage that sliding, energy consumption is low, meet national performance criteria.
In the present embodiment, insurance circuit is specially serially connected in the insurance f1 on live wire.
As shown in Fig. 2 emc circuit includes varistor rv1, electric capacity c1, resistance r2 and resistance r3, varistor rv1, electricity
Hold c1 to be connected in parallel between the alternating current power supply bus of input, in parallel with electric capacity c1 again after resistance r2 and resistance r3 series connection, emc circuit is used
Require and safety effect in making circuit meet emc.
As shown in Fig. 2 current rectifying and wave filtering circuit includes resistance r1, resistance r4, diode d1, diode d2, electric capacity ec1, electricity
Hold ec2 and inductance l1, resistance r1, diode d1, diode d2, inductance l1 are sequentially connected in series on the live wire l of alternating current power supply bus,
One end of inductance l1 is connected with the zero line n of alternating current power supply bus by electric capacity ec1, the other end passes through electric capacity ec2 and alternating current power supply
The zero line n of bus is connected, and resistance r4 and inductance l1 is connected in parallel.Current rectifying and wave filtering circuit is used for ac85-285v alternating voltage to turn
Become into dc120-400v smooth voltage.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonging under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of Width funtion power circuit for fan or cooling fan it is characterised in that: Width funtion power circuit is provided with successively
Connected insurance circuit, emc circuit, current rectifying and wave filtering circuit, pwm on-off control transducing circuit and energy-storage voltage stabilizing circuit.
2. the Width funtion power circuit for fan or cooling fan according to claim 1 it is characterised in that: described pwm
On-off control transducing circuit includes pwm control chip u1, electric capacity ec3, resistance r5, resistance r6, electric capacity c2, electric capacity c3 and diode
The sw end of d3, pwm control chip u1 is connected with the outfan of current rectifying and wave filtering circuit, and the vdd end of pwm control chip u1 is sequentially connected in series
As the switching pulse outfan of direct current 5v after resistance r5, the diode d3 of reversed arrangement, and the switching pulse output of direct current 5v
End is connected with the zero line n of alternating current power supply bus, and one end of resistance r5 is grounded by electric capacity c2, the other end is grounded by electric capacity c3,
The vdd end of pwm control chip u1 is grounded by resistance r6, and No. 1 terminal of pwm control chip u1 is grounded by electric capacity ec3；Described
Energy-storage voltage stabilizing circuit includes inductance l2, diode d4, electric capacity ec4 and resistance r7, and described electric capacity c2, electric capacity c3 pass through reversely respectively
Arrangement diode d4 after be grounded, and the positive pole of diode d4 be connected with the switching pulse outfan of direct current 5v by electric capacity ec4,
Negative pole is connected with the switching pulse outfan of direct current 5v by inductance l2, and the switching pulse outfan of direct current 5v is connect by resistance r7
Ground.
3. the Width funtion power circuit for fan or cooling fan according to claim 2 it is characterised in that: described emc
Circuit includes varistor rv1, electric capacity c1, resistance r2 and resistance r3, and described varistor rv1, electric capacity c1 are connected in parallel on input
Between alternating current power supply bus, in parallel with electric capacity c1 again after described resistance r2 and resistance r3 series connection.
4. the Width funtion power circuit for fan or cooling fan according to claim 3 it is characterised in that: described rectification
Filter circuit includes resistance r1, resistance r4, diode d1, diode d2, electric capacity ec1, electric capacity ec2 and inductance l1, resistance r1, two
Pole pipe d1, diode d2, inductance l1 are sequentially connected in series on the live wire l of alternating current power supply bus, and electric capacity ec1 is passed through in one end of inductance l1
Be connected with the zero line n of alternating current power supply bus, the other end is connected with the zero line n of alternating current power supply bus by electric capacity ec2, resistance r4 and
Inductance l1 is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910663.1U CN205901616U (en) | 2016-08-19 | 2016-08-19 | Be applied to wide voltage power supply circuit of fan or thermantidote |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910663.1U CN205901616U (en) | 2016-08-19 | 2016-08-19 | Be applied to wide voltage power supply circuit of fan or thermantidote |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901616U true CN205901616U (en) | 2017-01-18 |
Family
ID=57780192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620910663.1U Active CN205901616U (en) | 2016-08-19 | 2016-08-19 | Be applied to wide voltage power supply circuit of fan or thermantidote |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253706A (en) * | 2016-08-19 | 2016-12-21 | 佛山市顺德区海伦宝电器有限公司 | A kind of Width funtion power circuit being applied to fan or cooling fan |
-
2016
- 2016-08-19 CN CN201620910663.1U patent/CN205901616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253706A (en) * | 2016-08-19 | 2016-12-21 | 佛山市顺德区海伦宝电器有限公司 | A kind of Width funtion power circuit being applied to fan or cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 11, Xinyou East Road, Shunde high tech Zone (Ronggui), Ronggui Bianjiao, Shunde District, Foshan City, Guangdong Province 528300 Patentee after: Guangdong Hailunbao household appliances Co.,Ltd. Address before: No. 11, Xinyou East Road, Shunde high tech Zone (Ronggui), Ronggui Bianjiao, Shunde District, Foshan City, Guangdong Province 528300 Patentee before: FOSHAN SHUNDE HELENBO ELECTRICAL APPLIANCE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |