CN209375491U - A kind of programmable power supply - Google Patents
A kind of programmable power supply Download PDFInfo
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- CN209375491U CN209375491U CN201920014222.7U CN201920014222U CN209375491U CN 209375491 U CN209375491 U CN 209375491U CN 201920014222 U CN201920014222 U CN 201920014222U CN 209375491 U CN209375491 U CN 209375491U
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Abstract
The utility model provides a kind of programmable power supply, including EMC circuit, rectifier bridge DB1, capacitor C1, C2, transformer T1, diode D1, D2, D3, inductance L1, L3, metal-oxide-semiconductor Q1, Q2, Q3, constant voltage/constant current output control circuit, charging current control circuit, LED drive control circuit, city's power detection circuit, NFC signal and processing circuit；User can according to demand, and convenient and efficient adjustment emergency power supply exports electric current；It does not need to power on to driving, safe operation is reliable.
Description
Technical field
The utility model relates to power supplys, and in particular to a kind of programmable emergency power supply.
Background technique
Currently, emergency power supply in the market, output voltage, electric current are single fixed value, or all by the way of pulling out code
Electric current is adjusted, user when in use, can not according to actual needs, adjust the emergency power of needs.
Summary of the invention
The utility model is in view of the above-mentioned problems, provide a kind of programmable power supply, including EMC circuit, rectifier bridge DB1, capacitor
C1, C2, transformer T1, diode D1, D2, D3, inductance L1, L3, metal-oxide-semiconductor Q1, Q2, Q3, constant voltage/constant current output control circuit,
Charging current control circuit, LED drive control circuit, city's power detection circuit, NFC signal and processing circuit；
The EMC circuit input end connects alternating current, and EMC circuit is connected across the both ends of rectifier bridge DB1；Rectifier bridge DB1's is defeated
Outlet is separately connected the input terminal of transformer T1, capacitor C1；The output end connection diode D1 anode of transformer T1；Diode D1
Cathode is separately connected capacitor C2 and inductance L1；Drain electrode that the other end of inductance L1 is separately connected metal-oxide-semiconductor Q2 and diode D2 are just
Pole；The cathode of diode D2 is separately connected anode and inductance L3；The other end of inductance L3 is separately connected the drain electrode of metal-oxide-semiconductor Q3
Light emitting diode is connected with the cathode of the anode of diode D3, diode D3；The drain electrode of metal-oxide-semiconductor Q1 connects transformer T1 input
The other end；The grid of metal-oxide-semiconductor Q1 connects constant voltage/constant current output control circuit；The source electrode of metal-oxide-semiconductor Q1 connects ground；Metal-oxide-semiconductor Q2
Grid connect charging current control circuit, the source electrode of metal-oxide-semiconductor Q2 connects ground；The grid connection LED drive control electricity of metal-oxide-semiconductor Q3
The drain electrode on road, metal-oxide-semiconductor Q3 connects ground；City's power detection circuit is connected across the both ends of rectifier bridge DB1；NFC signal and processing circuit point
It Lian Jie not city's power detection circuit, constant voltage/constant current output control circuit, charging current control circuit, LED drive control circuit.
Further, described metal-oxide-semiconductor Q1, Q2, Q3 are low pressure N-type metal-oxide-semiconductor.
Further, the diode D2 is Schottky or Ultrafast recovery type diode, and the diode D3 is Xiao Te
Base or Ultrafast recovery type diode.
Further, described inductance L1, L2 are energy storage inductor.
Further, the charging current control circuit is DC-DC booster type IC, and the LED drive control circuit is
Voltage increase and current constant type IC, the NFC control circuit include NFC by receipts chip and CPU.
The advantages of the utility model:
The programmable power supply of the utility model, user can according to demand, and convenient and efficient adjustment emergency power supply exports electric current；
User can reduce quantity on order with centralized purchasing, mitigate storage pressure in buying；Manufacturer can reduce product category,
Centralized production improves production efficiency and materials procurement, warehouse cost；User does not need to connect to driving when adjusting electric current
Power supply, safe operation are reliable.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the programmable power supply schematic diagram of the utility model embodiment；
Fig. 2 is the work flow diagram of the programmable power supply of the utility model embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
With reference to Fig. 1, as shown in Figure 1, with reference to Fig. 1, as shown in Figure 1, a kind of programmable power supply, including EMC circuit, rectification
Bridge DB1, capacitor C1, C2, transformer T1, diode D1, D2, D3, inductance L1, L3, metal-oxide-semiconductor Q1, Q2, Q3, constant voltage/constant current are defeated
Control circuit, charging current control circuit out, LED drive control circuit, city's power detection circuit, NFC signal and processing circuit；
The EMC circuit input end connects alternating current, and EMC circuit is connected across the both ends of rectifier bridge DB1；Rectifier bridge DB1's is defeated
Outlet is separately connected the input terminal of transformer T1, capacitor C1；The output end connection diode D1 anode of transformer T1；Diode D1
Cathode is separately connected capacitor C2 and inductance L1；Drain electrode that the other end of inductance L1 is separately connected metal-oxide-semiconductor Q2 and diode D2 are just
Pole；The cathode of diode D2 is separately connected anode and inductance L3；The other end of inductance L3 is separately connected the drain electrode of metal-oxide-semiconductor Q3
Light emitting diode is connected with the cathode of the anode of diode D3, diode D3；The drain electrode of metal-oxide-semiconductor Q1 connects transformer T1 input
The other end；The grid of metal-oxide-semiconductor Q1 connects constant voltage/constant current output control circuit；The source electrode of metal-oxide-semiconductor Q1 connects ground；Metal-oxide-semiconductor Q2
Grid connect charging current control circuit, the source electrode of metal-oxide-semiconductor Q2 connects ground；The grid connection LED drive control electricity of metal-oxide-semiconductor Q3
The drain electrode on road, metal-oxide-semiconductor Q3 connects ground；City's power detection circuit is connected across the both ends of rectifier bridge DB1；NFC signal and processing circuit point
It Lian Jie not city's power detection circuit, constant voltage/constant current output control circuit, charging current control circuit, LED drive control circuit；NFC
Signal and processing circuit control signal by charging circuit and connect constant voltage/constant current output control circuit；NFC signal and processing circuit
Charging current control circuit is connected by charge-current control signal；NFC signal and processing circuit pass through LED current control signal
Connect LED drive control circuit；
Constant voltage/constant current output control circuit controls AC/DC conversion circuit, charging current control circuit control DC-DC charging
Circuit, LED drive control circuit LED drive circuit；
The NFC signal and processing circuit are the NFC signal and processing circuit of CPU control, the output of CPU programmable power supply
Voltage and current, when in use, CPU is written by NFC device in voltage and current value as needed to user.
Described metal-oxide-semiconductor Q1, Q2, Q3 are low-voltage, high-current N-type metal-oxide-semiconductor.
The diode D2 is Schottky or Ultrafast recovery type diode, and the diode D3 is Schottky or Ultrafast recovery
Type diode.
Described inductance L1, L2 are energy storage inductor.
The charging current control circuit is DC-DC booster type IC, and the LED drive control circuit is voltage increase and current constant type
IC, the NFC control circuit include NFC by receipts chip and CPU.
With reference to Fig. 2, as shown in Fig. 2, the course of work of the programmable power supply are as follows:
S1, alternating current pass through AC/DC conversion circuit, convert alternating current to stable DC；
S2, the EMC circuit filter out the EMC interference that power supply generates, rectifier bridge DB1 by AC rectification, by C1 into
Row filtering, is converted to steady direct current, and the duty ratio of the constant voltage/constant current output control circuit control metal-oxide-semiconductor Q1 passes through isolation
High-voltage dc voltage is converted to low-voltage DC by transformer T1；
The transformer T1 energy passed over is rectified, is filtered by C2 by S3, the diode D1, becomes smooth low
Straightening galvanic electricity；
S4, charging current control circuit and metal-oxide-semiconductor Q2, inductance L1, diode D2 form voltage increase and current constant circuit, fill to battery
Electricity；
S5, LED drive control circuit, metal-oxide-semiconductor Q3, diode D3, inductance L3 form voltage increase and current constant circuit, drive LED times
Column；
S6, DC-DC charging circuit are converted voltage, electric current, provide suitable charging curve for battery；Charging voltage
It is controlled with electric current by NFC signal processing unit, user can configure charging current or voltage by NFC device；
Energy conversion stored by battery is the suitable voltage of LED array in mains failure by S7, LED drive circuit
Electric current, output voltage electric current by NFC signal processing unit control, user can by NFC device to output electric current and electric current into
Row configuration.
The CPU of the utility model is other microprocessors such as single-chip microcontroller or DSP.
NFC full name in English Near Field Communication, wireless near field communication.It is to be sent out by PHILIPS Co.
It rises, by the wireless technology that the well-known manufacturers such as Nokia, Sony joint is featured.NFC is also known as wireless near field communication, is a kind of
Short-range high frequency wireless communication technology allows to carry out contactless Point-to-Point Data Transmission (at ten centimetres between electronic equipment
It is interior) exchange data.This technology is evolved by contact-free formula RF identification (RFID), and backward compatible RFID.
The NFC device of the utility model can be smart phone, pass through the NFC label of scanning NFC signal and processing circuit
Chip, to the NFC signal and processing circuit write control data of CPU control, to control NFC signal and the processing of CPU control
Circuit controls AC/DC conversion circuit, controls DC-DC charging circuit, controls LED drive circuit；Intelligence is carried out to programmable power supply
Control.NFC device is equipped with control software, and control software is equipped with AC/DC conversion circuit control module, DC-DC charging circuit control
Molding block, LED drive circuit control module.
The programmable power supply of the utility model, user can according to demand, and convenient and efficient adjustment emergency power supply exports electric current；
User can reduce quantity on order with centralized purchasing, mitigate storage pressure in buying；Manufacturer can reduce product category,
Centralized production improves production efficiency and materials procurement, warehouse cost；User does not need to connect to driving when adjusting electric current
Power supply, safe operation are reliable.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of programmable power supply, which is characterized in that including EMC circuit, rectifier bridge DB1, capacitor C1, C2, transformer T1, two poles
Pipe D1, D2, D3, inductance L1, L3, metal-oxide-semiconductor Q1, Q2, Q3, constant voltage/constant current output control circuit, charging current control circuit, LED
Drive control circuit, city's power detection circuit, NFC signal and processing circuit；
The EMC circuit input end connects alternating current, and EMC circuit is connected across the both ends of rectifier bridge DB1；The output end of rectifier bridge DB1
It is separately connected input terminal, the capacitor C1 of transformer T1；The output end connection diode D1 anode of transformer T1；Diode D1 cathode
It is separately connected capacitor C2 and inductance L1；The other end of inductance L1 is separately connected the drain electrode of metal-oxide-semiconductor Q2 and the anode of diode D2；Two
The cathode of pole pipe D2 is separately connected anode and inductance L3；The other end of inductance L3 is separately connected the drain electrode and two of metal-oxide-semiconductor Q3
The cathode of the anode of pole pipe D3, diode D3 connects light emitting diode；The drain electrode of metal-oxide-semiconductor Q1 connects the another of transformer T1 input
One end；The grid of metal-oxide-semiconductor Q1 connects constant voltage/constant current output control circuit；The source electrode of metal-oxide-semiconductor Q1 connects ground；The grid of metal-oxide-semiconductor Q2
Charging current control circuit is connected, the source electrode of metal-oxide-semiconductor Q2 connects ground；The grid of metal-oxide-semiconductor Q3 connects LED drive control circuit, MOS
The drain electrode of pipe Q3 connects ground；City's power detection circuit is connected across the both ends of rectifier bridge DB1；NFC signal and processing circuit are separately connected
City's power detection circuit, constant voltage/constant current output control circuit, charging current control circuit, LED drive control circuit.
2. programmable power supply according to claim 1, which is characterized in that described metal-oxide-semiconductor Q1, Q2, Q3 are low pressure N-type
Metal-oxide-semiconductor.
3. programmable power supply according to claim 1, which is characterized in that the diode D2 is Schottky or Ultrafast recovery
Type diode, the diode D3 are Schottky or Ultrafast recovery type diode.
4. programmable power supply according to claim 1, which is characterized in that described inductance L1, L2 are energy storage inductor.
5. programmable power supply according to claim 1, which is characterized in that the charging current control circuit is DC-DC liter
Die mould IC, the LED drive control circuit are voltage increase and current constant type IC, and the NFC control circuit includes NFC by receipts chip and CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920014222.7U CN209375491U (en) | 2019-01-05 | 2019-01-05 | A kind of programmable power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920014222.7U CN209375491U (en) | 2019-01-05 | 2019-01-05 | A kind of programmable power supply |
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| Publication Number | Publication Date |
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| CN209375491U true CN209375491U (en) | 2019-09-10 |
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| CN201920014222.7U Active CN209375491U (en) | 2019-01-05 | 2019-01-05 | A kind of programmable power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190763A (en) * | 2019-01-05 | 2019-08-30 | 深圳市伟鹏世纪科技有限公司 | A kind of programmable power supply |
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2019
- 2019-01-05 CN CN201920014222.7U patent/CN209375491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190763A (en) * | 2019-01-05 | 2019-08-30 | 深圳市伟鹏世纪科技有限公司 | A kind of programmable power supply |
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