CN207216475U - A kind of programme-controlled dc power - Google Patents
A kind of programme-controlled dc power Download PDFInfo
- Publication number
- CN207216475U CN207216475U CN201721243553.5U CN201721243553U CN207216475U CN 207216475 U CN207216475 U CN 207216475U CN 201721243553 U CN201721243553 U CN 201721243553U CN 207216475 U CN207216475 U CN 207216475U
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- Prior art keywords
- power
- module
- power module
- programme
- controlled
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Abstract
A kind of programme-controlled dc power disclosed in the utility model, including power module and for controlling power module to realize the control module of transformation, control module obtains the output voltage signal of power module, by controlling power module to produce the regulation that the different PWM ripples of dutycycle realize power module output voltage.A kind of programme-controlled dc power of the present utility model solves the problems, such as that existing DC power output voltage can not change.It obtains the voltage signal of power module using the high-resolution and single-chip microcomputer of D/A modular converters; then again by controlling dutycycle corresponding to the PWM ripples modulation module regulation of power module to realize the adjustable function of the output voltage of power module; its full scale resolution is up to 10mV/1mA, but also is connected by the Enable Pin with power module so that power module has shut-off defencive function.
Description
Technical field
The utility model belongs to power-supply device technical field, and in particular to a kind of programme-controlled dc power.
Background technology
With the rapid development of science and technology, the electronic instrument of class, is played important in all trades and professions based on power supply
Effect, in order to adapt to the requirement of different application occasion and different clients, its function is more diversified, intelligent.Conventional power source is big
It is only fixed voltage output mostly, its shortcoming is that output voltage can not artificially change, and output accuracy and stability is not high.With section
Technology develops rapidly, to power supply reliability, output accuracy and stability requirement more and more higher, therefore grinding for power supply architecture
Hair improves just extremely urgent.
Utility model content
The purpose of this utility model is to provide a kind of programme-controlled dc power solve existing DC power output voltage
The problem of can not changing.
Technical scheme is used by the utility model：A kind of programme-controlled dc power, including power module and for controlling
Power module realizes the control module of transformation, and control module obtains the output voltage signal of power module, by controlling power supply mould
Block produces the regulation that the different PWM ripples of dutycycle realize power module output voltage.
The characteristics of the utility model, also resides in,
Control module is obtained the output voltage signal of power module by D/A modular converters, returned again after decompression is modulated
It is transmitted to control module.
Control module is powered by power supply module, and the small-power that power supply module includes being converted to civil power operating voltage becomes
Unit is pressed, is then powered after rectification filtering unit and voltage regulation unit processing for control module.
Control module is also associated with alarm module.
Control module also has the communication interface of telecommunication.
Power module uses model DBS700B36 power module.
What a kind of programme-controlled dc power of the present utility model solved that existing DC power output voltage can not change asks
Topic.It obtains the voltage signal of power module using the high-resolution and single-chip microcomputer of D/A modular converters, then again by controlling electricity
Source module PWM ripples modulation module regulation corresponding to dutycycle so as to realize the adjustable function of the output voltage of power module, its
Full scale resolution is up to 10mV/1mA, but also is connected by the Enable Pin with power module so that power module has
Turn off defencive function.
Brief description of the drawings
Fig. 1 is a kind of structural representation of programme-controlled dc power of the utility model.
In figure, 1. power modules, 2. control modules, 3.D/A modular converters, 4. power supply modules, 5. alarm modules.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of programme-controlled dc power structure provided by the utility model is as shown in figure 1, including power module 1 and for controlling
Power module 1 realizes the control module 2 of transformation, and power module 1 has PWM ripples control unit and Enable Pin, and control module 2 obtains
The output voltage signal of power module 1, by controlling the PWM ripples control unit of power module 1 to produce the different PWM ripples of dutycycle
Realize the regulation of the output voltage of power module 1.Specifically, control module 2 obtains the defeated of power module 1 by D/A modular converters 3
Go out voltage signal, again by decompression modulate after return to control module 2.In the present embodiment, power module 1 uses model
DBS700B36 power module, control module 2 are single-chip microcomputer.
Control module 2 is powered by power supply module 4, and power supply module 4 includes the small work(that civil power is converted to operating voltage
Rate voltage transformation unit, then powered after rectification filtering unit and voltage regulation unit processing for control module 2.
Control module is also associated with alarm module 5, exceedes volume when D/A modular converters 3 collect the output voltage of power module 1
Determine voltage 10% or when load current is more than rated current 20%, alarmed for example, by the alarm modules such as buzzer, LED 5.
Control module also has the communication interface of telecommunication.Example, communication interface can be to keep for PC's
RS232/RS422 interfaces.
During work, the voltage output end of single-chip microcomputer is connected with the PWM ripple control units of power module 1, single-chip microcomputer and power supply
Preset in advance has corresponding relation between module 1, and the output voltage of single-chip microcomputer is 0-5V, and the output voltage of power module 1 is 0-
36V, each output voltage of single-chip microcomputer is corresponding with an output voltage of power module 1, and single-chip microcomputer is changed by D/A
The voltage signal that module 3 gathers power module 1 returns to single-chip microcomputer after decompression again, and single-chip microcomputer obtains according to default corresponding relation
The output signal of current power module 1 is taken, then single-chip microcomputer adjusts its output voltage, and then controls PWM ripples control unit to produce
The voltage signal of different duty realizes that the output voltage of power module 1 is adjustable.The output end of single-chip microcomputer also with power module 1
Enable Pin is connected, when the output voltage of power module 1 that single-chip microcomputer obtains exceedes rated voltage 10% or load current more than specified
During electric current 20%, single-chip microcomputer is produced by controlling the Enable Pin power cutoff module of power module 1 by alarm module 5
Alarm is to avoid damaging electrical equipment or Switching Power Supply.
The signal that single-chip microcomputer gathers to D/A modular converters 3 carries out computing, is respectively intended to adjust the pulsewidth of pwm signal.Monolithic
The power supply of machine can be by 220V power networks after wattage transformer decompression is operating voltage, then carry out rectifying and wave-filtering, at voltage stabilizing
Obtained after reason.
A kind of programme-controlled dc power of the present utility model is the deficiency proposition for traditional intelligence power module, is digitized
The link number that can be reduced the uncertain factor in production process and artificially participate in is handled, is efficiently solved in power module such as
The engineering problems such as reliability, intellectuality and homogeneity of product, it is greatly enhanced production efficiency and the maintainability of product.It is specific next
Say that there is following obvious advantage：
1) it is easy to use advanced control method and Intelligent Control Strategy, makes the intelligence degree of power module higher, property
Can be more perfect.
2) control is flexible, and system upgrade is convenient, it might even be possible to online modification control algolithm, without changing hardware circuit.
3) reliability of control system improves, and is easy to standardize, and can be directed to (or the production of different model of different system
Product), using unified control panel.
4) system maintenance easy, once breaking down, RS232 interface or RS485 interfaces or USB can easily be passed through
Interface is debugged, and can also pass through MODEM remote operations.
5) uniformity of system is good, and cost is low, and it is convenient to manufacture, and volume will greatly reduce, and production cost declines.
Claims (6)
1. a kind of programme-controlled dc power, it is characterised in that including power module (1) and for controlling the power module (1) real
The control module (2) of existing transformation, the control module (2) obtain the output voltage signal of the power module (1), pass through control
The power module (1) produces the regulation that the different PWM ripples of dutycycle realize the power module (1) output voltage.
2. a kind of programme-controlled dc power as claimed in claim 1, it is characterised in that the control module (2) is changed by D/A
Module (3) obtains the output voltage signal of the power module (1), after decompression is modulated returns to the control module again
(2)。
3. a kind of programme-controlled dc power as claimed in claim 1, it is characterised in that the control module (2) is by power supply module
(4) it is powered, the power supply module (4) includes being converted to civil power into the small-power voltage transformation unit of operating voltage, then passes through
It is the control module (2) power supply after rectification filtering unit and voltage regulation unit processing.
4. a kind of programme-controlled dc power as claimed in claim 1, it is characterised in that the control module is also associated with mould of alarming
Block (5).
5. a kind of programme-controlled dc power as claimed in claim 1, it is characterised in that the control module (2) also has long-range
The communication interface of communication.
6. a kind of programme-controlled dc power as claimed in claim 1, it is characterised in that the power module (1) uses model
DBS700B36 power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243553.5U CN207216475U (en) | 2017-09-26 | 2017-09-26 | A kind of programme-controlled dc power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243553.5U CN207216475U (en) | 2017-09-26 | 2017-09-26 | A kind of programme-controlled dc power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207216475U true CN207216475U (en) | 2018-04-10 |
Family
ID=61819262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721243553.5U Expired - Fee Related CN207216475U (en) | 2017-09-26 | 2017-09-26 | A kind of programme-controlled dc power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207216475U (en) |
-
2017
- 2017-09-26 CN CN201721243553.5U patent/CN207216475U/en not_active Expired - Fee Related
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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: 20180410 Termination date: 20180926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |