CN207457780U - A kind of pulsed programmable power supply - Google Patents
A kind of pulsed programmable power supply Download PDFInfo
- Publication number
- CN207457780U CN207457780U CN201721644673.6U CN201721644673U CN207457780U CN 207457780 U CN207457780 U CN 207457780U CN 201721644673 U CN201721644673 U CN 201721644673U CN 207457780 U CN207457780 U CN 207457780U
- Authority
- CN
- China
- Prior art keywords
- module
- output
- transport
- placing device
- power supply
- 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
- Amplifiers (AREA)
Abstract
The utility model discloses a kind of pulsed programmable power supplys, including processing module, usb communication module, D/A converter module, electrical parameter measuring module and power output module, the processing module is connected with usb communication module, the processing module output terminal is connected with D/A converter module input terminal, the D/A converter module output terminal is connected with power output module input terminal, output terminal of the power output module as programmable power supply, the electrical parameter measuring module is connected with power output module output terminal, the electrical parameter measuring module output terminal is connected with processing module input terminal.The utility model controls the output voltage electric current of power output module by processing module; the quick effect for improving power output module output voltage current value is realized using numerically controlled mode; to meet the power supply requirement to LED measurements, protection LED is not in any damage during the test.The utility model is used to carry out electric parameter measurement to LED.
Description
Technical field
The utility model is related to power circuit technical field, more specifically to a kind of programmable power supply circuit structure.
Background technology
Play the part of more and more important role in life as LED is applied, technology is also constantly ripe, great power LED system
Make technology constantly improve.People also become higher and higher to the performance requirement of LED, in production process the test of LED become not
The part that can lack, it is required that also becoming more and more important, wherein electric performance test just becomes most important role.
It is minimum in order to damage tested LED in conventional LED test process, it will not usually increase radiator, so
It is required that testing time it is short, but test power supply currently on the market there are current over pulse, reach and meet the constant of great power LED measurement
The shortcomings of current time is long causes occur phenomena such as test is inaccurate, and LED is damaged in LED test process.
Utility model content
The technical problems to be solved in the utility model is：A kind of pulsed program-controlled electric for great power LED measurement is provided
Source.
The solution that the utility model solves its technical problem is：
A kind of pulsed programmable power supply, including processing module, usb communication module, D/A converter module, electric parameter measurement mould
Block and power output module, the processing module are connected by usb communication module with external device communication, the processing module
Output terminal is connected with D/A converter module input terminal, the D/A converter module output terminal and power output module input terminal phase
Even, output terminal of the power output module output terminal as programmable power supply, the electrical parameter measuring module and power output mould
Block output terminal is connected, and the electrical parameter measuring module output terminal is connected with processing module input terminal.
As being further improved for above-mentioned technical proposal, the processing module includes processing chip, and the processing chip is
One kind in fpga chip, ARM chips, MCU chip.
As being further improved for above-mentioned technical proposal, the usb communication module includes model CY7C68003-20FN
Communication chip.
As being further improved for above-mentioned technical proposal, the electrical parameter measuring module includes current sampling resistor, voltage
Sampling resistor, passage switching switch, modulus conversion chip and the reference power supply that reference voltage is provided for modulus conversion chip, institute
It states power output module output terminal respectively with current sampling resistor and voltage sample resistance to be connected, the current sampling resistor, electricity
Pressure sampling resistor be connected by passage switching switch with modulus conversion chip input terminal, the modulus conversion chip output terminal and
Processing module input terminal is connected.
As being further improved for above-mentioned technical proposal, the D/A converter module includes analog-digital chip and amplification
Circuit, the analog-digital chip input terminal are connected with processing module output terminal, the analog-digital chip output terminal and amplification
Circuit input end is connected, and the amplification circuit output end is connected with power output module input terminal.
As being further improved for above-mentioned technical proposal, the analog-digital chip model AD5726.
As being further improved for above-mentioned technical proposal, the power output module includes current output unit and voltage
Output unit；The voltage output unit includes transport and placing device U1, transport and placing device U2, triode Q1 and power tube QT1, the amplifier
Device U1 in-phase input ends are connected with D/A converter module output terminal, and transport and placing device U1 output terminals are connected with triode Q1 base stages, three poles
Pipe Q1 emitters are connected with transport and placing device U1 inverting inputs, and triode Q1 collectors are connected with transport and placing device U2 in-phase input ends, fortune
It puts device U2 output terminals with its inverting input to be connected, transport and placing device U2 output terminals are connected with power tube QT1 input terminals, power tube QT1
Output terminal is connected with triode Q1 collectors；The current output unit includes transport and placing device U3, transport and placing device U4 and power tube
QT2, transport and placing device U3 in-phase input end are grounded, and transport and placing device U3 output terminals are defeated by capacitance and resistance in parallel and transport and placing device U3 reverse phases
Enter end to be connected, transport and placing device U3 output terminals are connected with transport and placing device U4 inverting inputs, transport and placing device U4 in-phase input ends ground connection, transport and placing device
U4 output terminals are connected by capacitance with transport and placing device U4 inverting inputs, and transport and placing device U4 output terminals are connected with power tube QT2 input terminals.
As being further improved for above-mentioned technical proposal, the power tube QT1 and power tube QT2 are by two triode groups
Into multiple tube.
The beneficial effects of the utility model are：The utility model controls the output electricity of power output module by processing module
Pressure and output current realize the quick effect for improving power output module output voltage current value using numerically controlled mode
Fruit, to meet the power supply requirement to LED measurements, protection LED is not in any damage during the test.The utility model is used
In to LED progress electric parameter measurements.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is the part of the embodiment of the utility model rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His designing scheme and attached drawing.
Fig. 1 is the circuit module frame figure of the utility model；
Fig. 2 is the electrical parameter measuring module embodiment schematic diagram of the utility model；
Fig. 3 is the power output module embodiment schematic diagram of the utility model.
Specific embodiment
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is the part of the embodiment rather than whole embodiments of the utility model, the embodiment based on the utility model, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection relations being previously mentioned in text, not single finger element directly connects, and refer to can be according to specific implementation feelings
Condition, by adding or reducing connecting element, to form more preferably circuit structure.Each technical characteristic in the invention,
It can be with combination of interactions on the premise of not conflicting conflict.
With reference to Fig. 1~Fig. 3, the utility model discloses a kind of pulsed programmable power supply, including processing module, usb communication
Module, D/A converter module, electrical parameter measuring module and power output module, the processing module pass through usb communication module
It is connected with external device communication, the processing module output terminal is connected with D/A converter module input terminal, the digital-to-analogue conversion mould
Block output terminal is connected with power output module input terminal, output terminal of the power output module output terminal as programmable power supply,
The electrical parameter measuring module is connected with power output module output terminal, the electrical parameter measuring module output terminal and processing module
Input terminal is connected.Specifically, the utility model controls the output voltage of power output module and output electricity by processing module
Stream realizes the quick effect for improving power output module output voltage current value, to meet to LED using numerically controlled mode
The power supply requirement of measurement, protection LED is not in any damage during the test.
It is further used as preferred embodiment, in specific embodiment of the present invention, the processing module includes place
Chip is managed, the processing chip is one kind in fpga chip, ARM chips, MCU chip.The processing chip of types described above
Programming is simple, and rich hardware resource, the speed of service is fast, disclosure satisfy that the requirement of processing module described in the utility model.
It is further used as preferred embodiment, in specific embodiment of the present invention, the usb communication module includes
The communication chip of model CY7C68003-20FN.The utility model carries out two-way by usb communication module and external equipment
Letter connection, the core for module of passing through using the communication chip of the model as USB effectively simplify circuit structure, when reducing circuit design
Wiring difficulty.
It is further used as preferred embodiment, in specific embodiment of the present invention, the electrical parameter measuring module
It provides including current sampling resistor, voltage sample resistance, passage switching switch, modulus conversion chip and for modulus conversion chip
The reference power supply of reference voltage, the power output module output terminal respectively with current sampling resistor and voltage sample resistance phase
Even, the current sampling resistor, voltage sample resistance are connected by passage switching switch with modulus conversion chip input terminal, institute
Modulus conversion chip output terminal is stated with processing module input terminal to be connected.Specifically, current sampling resistor is utilized in present embodiment
And voltage sample resistance gathers power output module and is output to the Current Voltage analog signal of LED respectively, and pass through modulus and turn
It changes chip and is converted into digital signal, be input in processing module, realize the closed loop control to power output module output current voltage
System improves control accuracy.
It is further used as preferred embodiment, in specific embodiment of the present invention, the D/A converter module bag
Analog-digital chip and amplifying circuit are included, the analog-digital chip input terminal is connected with processing module output terminal, the number
Mould conversion chip output terminal is connected with input amplifier, the amplification circuit output end and power output module input terminal phase
Even.Specifically, the analog-digital chip exports processing module, for that will control power output module output voltage electric current
The digital signal of value is converted into analog signal, but since the output current voltage of digital circuit is limited, it is difficult to reach drive
The requirement of dynamic great power LED, therefore also need to export analog-digital chip by the effect of amplifying circuit in present embodiment
Voltage amplification, to improve the LED driving forces of programmable power supply described in the utility model,
It is further used as preferred embodiment, in the utility model specific embodiment, the analog-digital chip model
For AD5726, the analog-digital chip of the model is configured with the input terminal of 4 passages, and is 12 Bits Serial input terminals, output
Voltage accuracy is high.
It is further used as preferred embodiment, in specific embodiment of the present invention, the power output module bag
Include current output unit and voltage output unit；The voltage output unit includes transport and placing device U1, transport and placing device U2, triode Q1
And power tube QT1, the transport and placing device U1 in-phase input ends are connected with D/A converter module output terminal, transport and placing device U1 output terminals with
Triode Q1 base stages are connected, and triode Q1 emitters are connected with transport and placing device U1 inverting inputs, triode Q1 collectors and amplifier
Device U2 in-phase input ends are connected, and transport and placing device U2 output terminals are connected with its inverting input, transport and placing device U2 output terminals and power tube QT1
Input terminal is connected, and power tube QT1 output terminals are connected with triode Q1 collectors；The current output unit include transport and placing device U3,
Transport and placing device U4 and power tube QT2, transport and placing device U3 in-phase input end are grounded, and transport and placing device U3 output terminals pass through capacitance and electricity in parallel
Resistance is connected with transport and placing device U3 inverting inputs, and transport and placing device U3 output terminals are connected with transport and placing device U4 inverting inputs, and transport and placing device U4 is same
Phase input end grounding, transport and placing device U4 output terminals are connected by capacitance with transport and placing device U4 inverting inputs, transport and placing device U4 output terminals with
Power tube QT2 input terminals are connected.Specifically, the transport and placing device U1, transport and placing device U2 and triode Q1 are used to implement control power amplifier
The function of pipe QT1 output voltages, the transport and placing device U3 and transport and placing device U4 are used to implement the work(of control power tube QT2 output currents
Energy.
It is further used as preferred embodiment, in specific embodiment of the present invention, the power tube QT1 and power amplifier
The multiple tube that pipe QT2 is made of two triodes, to further improve the power amplification effect of power output module.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make a variety of equivalent changes on the premise of without prejudice to the utility model spirit
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (8)
1. a kind of pulsed programmable power supply, it is characterised in that：Including processing module, usb communication module, D/A converter module, electricity
Parameters measurement module and power output module, the processing module are connected with usb communication module, the processing module output terminal
It is connected with D/A converter module input terminal, the D/A converter module output terminal is connected with power output module input terminal, described
Output terminal of the power output module as programmable power supply, the electrical parameter measuring module are connected with power output module output terminal,
The electrical parameter measuring module output terminal is connected with processing module input terminal.
2. a kind of pulsed programmable power supply according to claim 1, it is characterised in that：The processing module includes processing core
Piece, the processing chip are one kind in fpga chip, ARM chips, MCU chip.
3. a kind of pulsed programmable power supply according to claim 1, it is characterised in that：The usb communication module includes type
Number be CY7C68003-20FN communication chip.
4. a kind of pulsed programmable power supply according to claim 1, it is characterised in that：The electrical parameter measuring module includes
Current sampling resistor, voltage sample resistance, passage switching switch, modulus conversion chip and provide benchmark for modulus conversion chip
The reference power supply of voltage, the power output module output terminal are connected respectively with current sampling resistor and voltage sample resistance, institute
It states current sampling resistor, voltage sample resistance by passage switching switch with modulus conversion chip input terminal to be connected, the mould
Number conversion chip output terminal is connected with processing module input terminal.
5. a kind of pulsed programmable power supply according to claim 1, it is characterised in that：The D/A converter module includes number
Mould conversion chip and amplifying circuit, the analog-digital chip input terminal are connected with processing module output terminal, and the digital-to-analogue turns
It changes chip output with input amplifier to be connected, the amplification circuit output end is connected with power output module input terminal.
6. a kind of pulsed programmable power supply according to claim 5, it is characterised in that：The analog-digital chip model
AD5726。
7. a kind of pulsed programmable power supply according to claim 6, it is characterised in that：The power output module includes electricity
Flow output unit and voltage output unit；The voltage output unit include transport and placing device U1, transport and placing device U2, triode Q1 and
Power tube QT1, the transport and placing device U1 in-phase input ends are connected with D/A converter module output terminal, transport and placing device U1 output terminals and three poles
Pipe Q1 base stages are connected, and triode Q1 emitters are connected with transport and placing device U1 inverting inputs, triode Q1 collectors and transport and placing device U2
In-phase input end is connected, and transport and placing device U2 output terminals are connected with its inverting input, and transport and placing device U2 output terminals are inputted with power tube QT1
End is connected, and power tube QT1 output terminals are connected with triode Q1 collectors；The current output unit includes transport and placing device U3, amplifier
Device U4 and power tube QT2, transport and placing device U3 in-phase input end are grounded, transport and placing device U3 output terminals by parallel capacitance and resistance with
Transport and placing device U3 inverting inputs are connected, and transport and placing device U3 output terminals are connected with transport and placing device U4 inverting inputs, and transport and placing device U4 is the same as mutually defeated
Enter end ground connection, transport and placing device U4 output terminals are connected by capacitance with transport and placing device U4 inverting inputs, transport and placing device U4 output terminals and power amplifier
Pipe QT2 input terminals are connected.
8. a kind of pulsed programmable power supply according to claim 7, it is characterised in that：The power tube QT1 and power tube
The multiple tube that QT2 is made of two triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721644673.6U CN207457780U (en) | 2017-11-30 | 2017-11-30 | A kind of pulsed programmable power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721644673.6U CN207457780U (en) | 2017-11-30 | 2017-11-30 | A kind of pulsed programmable power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207457780U true CN207457780U (en) | 2018-06-05 |
Family
ID=62276349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721644673.6U Expired - Fee Related CN207457780U (en) | 2017-11-30 | 2017-11-30 | A kind of pulsed programmable power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207457780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797499A (en) * | 2017-11-30 | 2018-03-13 | 佛山科学技术学院 | A kind of pulsed programmable power supply and control method |
-
2017
- 2017-11-30 CN CN201721644673.6U patent/CN207457780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797499A (en) * | 2017-11-30 | 2018-03-13 | 佛山科学技术学院 | A kind of pulsed programmable power supply and control method |
| CN107797499B (en) * | 2017-11-30 | 2023-10-31 | 佛山科学技术学院 | Pulse type program-controlled power supply and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105573391A (en) | Open-circuit voltage control circuit of solar array simulator and open-circuit voltage control method thereof | |
| CN207457780U (en) | A kind of pulsed programmable power supply | |
| CN105048962A (en) | Photovoltaic cell parameter test system | |
| CN203071912U (en) | Circuit for raising analog-to-digital conversion precision | |
| CN103412191B (en) | Minitype resistance measurement system | |
| CN105468068B (en) | The extraordinary constant-current source and its control method of a kind of semi-conducting material high temperature thermoelectric performance measurement | |
| CN204166094U (en) | A kind of LED photovoltaic parameter measurement system | |
| CN104807559A (en) | Multi-channel low-temperature measuring circuit supporting multiple sensors | |
| CN205427679U (en) | Open circuit voltage control circuit of sun battle array simulator | |
| CN204228946U (en) | A kind of electric energy meter error calibrating installation | |
| CN107797499A (en) | A kind of pulsed programmable power supply and control method | |
| CN207007937U (en) | A kind of detection circuit of multi-section serial battery voltage | |
| CN201804080U (en) | Precision measurement unit and test system | |
| CN206863182U (en) | The battery simulator of high voltage Safety output | |
| CN204761416U (en) | AD converting circuit for test system is moved to microbit | |
| CN201654096U (en) | Equivalent sampling oscilloscope based on external delay technology | |
| CN204575838U (en) | A kind of meter resistance measurement mechanism | |
| CN204789751U (en) | Intelligent ammeter | |
| CN204988341U (en) | Can realize multiple sensor signal measuring circuit | |
| CN204206279U (en) | A kind of standby power consumption of mobile phone test circuit | |
| CN210534212U (en) | Smart mobile phone oscilloscope signal node | |
| CN204836088U (en) | Photovoltaic cell parameter testing system | |
| CN202041577U (en) | Current sampling circuit of servo motor | |
| CN207424101U (en) | A kind of electrical-coil Minitype resistance detector | |
| CN206975109U (en) | A kind of real-time current signal-data processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20191130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |