CN204835682U - Direct current motor supply circuit - Google Patents
Direct current motor supply circuit Download PDFInfo
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- CN204835682U CN204835682U CN201520354817.9U CN201520354817U CN204835682U CN 204835682 U CN204835682 U CN 204835682U CN 201520354817 U CN201520354817 U CN 201520354817U CN 204835682 U CN204835682 U CN 204835682U
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Abstract
The utility model discloses a direct current motor supply circuit, including transformer W, rectifier bridge T, chip IC1 and chip IC2, fuse FU is connected to transformer W's winding N1's one end, and the 220V alternating current is connected to fuse FU's the other end, transformer W's winding N1's other end linked switch S1, and the other end of 220V alternating current is connected to switch S1's the other end. The utility model discloses direct current motor supply circuit not only simple structure, components and parts is few, has stand -by power supply moreover, when meetting the outage condition, can not terminate the power supply of motor, and the circuit stability is good simultaneously, the interference killing feature is strong, has consequently that the function is various, stability can be got well and the strong advantage of interference immunity.
Description
Technical field
The utility model relates to a kind of power supply circuits, specifically a kind of direct current machine power supply circuits.
Background technology
Direct current machine due to running speed even, the advantage that mechanical strength is good is widely used in the power part of various plant equipment, but direct current unit can only by direct current function, and it is higher to galvanic stability requirement, overvoltage, the under-voltage operating efficiency that all can affect direct current machine, therefore its power supply circuits seem particularly important, the traditional most complex structure of direct current machine power supply circuits, function singleness, poor stability, therefore needs to be improved.
Summary of the invention
The purpose of this utility model is to provide the direct current machine power supply circuits that a kind of structure is simple, cost of manufacture is low, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of direct current machine power supply circuits, comprise transformer W, rectifier bridge T, chip IC 1 and chip IC 2, one end of the winding N1 of described transformer W connects fuse FU, the other end of fuse FU connects 220V alternating current, the other end connecting valve S1 of the winding N1 of transformer W, the other end of switch S 1 connects the other end of 220V alternating current, the two ends of the winding N2 of transformer W are connected to the port one of rectifier bridge T and the port 3 of rectifier bridge T, the port 2 of rectifier bridge T connects the pin 2 of electric capacity C1 and chip IC 1, the other end of electric capacity C1 connects the pin 3 of chip IC 1 and the port 4 of rectifier bridge T, the pin 8 of chip IC 1 connects the pin 5 of electric capacity C2 and chip IC 2, the other end of electric capacity C2 connects inductance L 1, the pin 4 of chip IC 1 and the pin 2 of chip IC 2 also ground connection, the other end of inductance L 1 connects the pin 3 of chip IC 2, the pin 10 of chip IC 1 connects negative electrode and the inductance L 2 of diode D1, the other end contact resistance R3 of inductance L 2, electric capacity C3, the positive pole of battery E and motor M, the anode of diode D1 connects the other end of electric capacity C3 and the pin 4 of chip IC 2, the collector electrode of the other end connecting triode V1 of motor M, the base stage contact resistance R1 of triode V1, the other end of the emitter contact resistance R1 of triode V1, resistance R2, the emitter of triode V2 and the pin 1 of chip IC 2, the other end of negative pole contact resistance R2 of battery E and the base stage of triode V2, the collector electrode of triode V2 connects the negative electrode of diode D2, the other end of the anode contact resistance R3 of diode D2.
As preferred version of the present utility model: the model of described chip IC 1 is TPS7A4901, the model of described chip IC 2 is CAT4201.
As preferred version of the present utility model: described motor M is direct current machine.
Compared with prior art, the beneficial effects of the utility model are: not only structure is simple for the utility model direct current machine power supply circuits, components and parts are few, and with stand-by power supply, when running into powering-off state, the power supply of motor can not be stopped, simultaneously circuit stability is good, antijamming capability strong, therefore has the advantage of the good and strong interference immunity of diverse in function, stability.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of direct current machine power supply circuits.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of direct current machine power supply circuits, comprise transformer W, rectifier bridge T, chip IC 1 and chip IC 2, one end of the winding N1 of described transformer W connects fuse FU, the other end of fuse FU connects 220V alternating current, the other end connecting valve S1 of the winding N1 of transformer W, the other end of switch S 1 connects the other end of 220V alternating current, the two ends of the winding N2 of transformer W are connected to the port one of rectifier bridge T and the port 3 of rectifier bridge T, the port 2 of rectifier bridge T connects the pin 2 of electric capacity C1 and chip IC 1, the other end of electric capacity C1 connects the pin 3 of chip IC 1 and the port 4 of rectifier bridge T, the pin 8 of chip IC 1 connects the pin 5 of electric capacity C2 and chip IC 2, the other end of electric capacity C2 connects inductance L 1, the pin 4 of chip IC 1 and the pin 2 of chip IC 2 also ground connection, the other end of inductance L 1 connects the pin 3 of chip IC 2, the pin 10 of chip IC 1 connects negative electrode and the inductance L 2 of diode D1, the other end contact resistance R3 of inductance L 2, electric capacity C3, the positive pole of battery E and motor M, the anode of diode D1 connects the other end of electric capacity C3 and the pin 4 of chip IC 2, the collector electrode of the other end connecting triode V1 of motor M, the base stage contact resistance R1 of triode V1, the other end of the emitter contact resistance R1 of triode V1, resistance R2, the emitter of triode V2 and the pin 1 of chip IC 2, the other end of negative pole contact resistance R2 of battery E and the base stage of triode V2, the collector electrode of triode V2 connects the negative electrode of diode D2, the other end of the anode contact resistance R3 of diode D2.
The model of chip IC 1 is TPS7A4901, and the model of described chip IC 2 is CAT4201.Motor M is direct current machine.
Operation principle of the present utility model is: mains supply can be converted to power supply needed for motor M by transformer and bridge rectifier, electrical power storage after conversion is in chip IC 1, motor M and drive circuit is exported to respectively by chip IC 1, drive circuit comprises chip IC 2, electric capacity C2 and inductance L 1, drive circuit controls motor M by ON-OFF control circuit, ON-OFF control circuit comprises resistance R1 and triode V1, power circuit between chip IC 1 and rectifier bridge T is provided with electric capacity Cl, this electric capacity C1 can not only filtering rectifier bridge T export high-frequency noise, cut off the path that high-frequency noise is undertaken by current supply circuit propagating, and the noise preventing power supply from carrying forms interference to circuit, improve the electric current rising that chip IC 1 exports to motor M and the waveform declined, waveform is made to become mild, reach the object that plateau current is provided to motor M, in like manner, the power circuit between chip IC 1 and control chip is provided with electric capacity C2, makes control chip have stable power supply input, reduce the impact that power supply increases sharply on chip.Reduction voltage circuit is connected with 4 pin of chip IC 2, ON-OFF control circuit is connected with 1 pin with chip IC 2, during work, reduction voltage circuit coordinates with chip IC 2 and carries out reduced output voltage to the output voltage of chip IC 1, control the electric current of motor M, be connected with 1 pin of chip IC 2 after the other end connecting valve control circuit of motor M, the electric current of motor M is detected, and feeds back switching signal amount, reach the output controlling electric current.When power circuit normally works, not only give motor M and drive circuitry, also battery E is charged, when power circuit is identical with the electric current of battery E, triode V2 ends, when power circuit because when abnormal conditions disconnect, stand-by power supply circuit is powered to motor M, thus circuit is normally worked.
Claims (2)
1. direct current machine power supply circuits, comprise transformer W, rectifier bridge T, chip IC 1 and chip IC 2, it is characterized in that, one end of the winding N1 of described transformer W connects fuse FU, the other end of fuse FU connects 220V alternating current, the other end connecting valve S1 of the winding N1 of transformer W, the other end of switch S 1 connects the other end of 220V alternating current, the two ends of the winding N2 of transformer W are connected to the port one of rectifier bridge T and the port 3 of rectifier bridge T, the port 2 of rectifier bridge T connects the pin 2 of electric capacity C1 and chip IC 1, the other end of electric capacity C1 connects the pin 3 of chip IC 1 and the port 4 of rectifier bridge T, the pin 8 of chip IC 1 connects the pin 5 of electric capacity C2 and chip IC 2, the other end of electric capacity C2 connects inductance L 1, the pin 4 of chip IC 1 and the pin 2 of chip IC 2 also ground connection, the other end of inductance L 1 connects the pin 3 of chip IC 2, the pin 10 of chip IC 1 connects negative electrode and the inductance L 2 of diode D1, the other end contact resistance R3 of inductance L 2, electric capacity C3, the positive pole of battery E and motor M, the anode of diode D1 connects the other end of electric capacity C3 and the pin 4 of chip IC 2, the collector electrode of the other end connecting triode V1 of motor M, the base stage contact resistance R1 of triode V1, the other end of the emitter contact resistance R1 of triode V1, resistance R2, the emitter of triode V2 and the pin 1 of chip IC 2, the other end of negative pole contact resistance R2 of battery E and the base stage of triode V2, the collector electrode of triode V2 connects the negative electrode of diode D2, the other end of the anode contact resistance R3 of diode D2, the model of chip IC 1 is TPS7A4901, the model of described chip IC 2 is CAT4201.
2. a kind of direct current machine power supply circuits according to claim 1, is characterized in that, described motor M is direct current machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354817.9U CN204835682U (en) | 2015-05-28 | 2015-05-28 | Direct current motor supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354817.9U CN204835682U (en) | 2015-05-28 | 2015-05-28 | Direct current motor supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204835682U true CN204835682U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520354817.9U Expired - Fee Related CN204835682U (en) | 2015-05-28 | 2015-05-28 | Direct current motor supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204835682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505725A (en) * | 2016-12-16 | 2017-03-15 | 崔慧芳 | Power source automatic switching system and automatic switching method |
| CN107290647A (en) * | 2017-06-29 | 2017-10-24 | 四平市吉华高新技术有限公司 | A kind of logical out of circuit test instrument |
-
2015
- 2015-05-28 CN CN201520354817.9U patent/CN204835682U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505725A (en) * | 2016-12-16 | 2017-03-15 | 崔慧芳 | Power source automatic switching system and automatic switching method |
| CN107290647A (en) * | 2017-06-29 | 2017-10-24 | 四平市吉华高新技术有限公司 | A kind of logical out of circuit test instrument |
| CN107290647B (en) * | 2017-06-29 | 2024-03-22 | 四平市吉华高新技术有限公司 | On-off circuit tester |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160528 |