CN209001834U - A kind of high precision numerical control perseverance energy power of chopping circuit - Google Patents
A kind of high precision numerical control perseverance energy power of chopping circuit Download PDFInfo
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- CN209001834U CN209001834U CN201820799851.0U CN201820799851U CN209001834U CN 209001834 U CN209001834 U CN 209001834U CN 201820799851 U CN201820799851 U CN 201820799851U CN 209001834 U CN209001834 U CN 209001834U
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Abstract
The utility model relates to a kind of high precision numerical control perseverance energy power of chopping circuits, belong to field of power electronics.It is made of main output loop and control loop, major loop is made of DC power supply, permanent energy copped wave bridge, output buffer；Control loop is made of microcontroller, photoelectric coupling circuit, input voltage and input current detection, output voltage current detecting, microcontroller power supply circuit, display circuit, key setting circuit, microcontroller power supply circuit, permanent energy copped wave bridge, output buffer, output voltage current detecting are sequentially connected, permanent energy copped wave bridge is connect with photoelectric coupling circuit, and input voltage and input current detection, output voltage current detecting, photoelectric coupling circuit, display circuit and key setting circuit are electrically connected with microcontroller respectively.The utility model has low-loss, and multi-output mode can the progress dynamic adjustment of automatic tracing load condition.
Description
Technical field
The utility model relates to a kind of high precision numerical control perseverance energy power of chopping circuits, belong to field of power electronics.
Background technique
Power supply is the heart equipment of electronic equipment, provides power for electronic equipment, the superiority and inferiority of performance is directly related to electricity
The reliability of sub- equipment, in different application fields, the requirement to power supply is also different.By the output characteristics of power supply, direct current
Power supply can be divided into constant pressure source, constant-current source, constant power source.
Constant pressure source refers to that output voltage is fixed, and output electric current changes with the variation of load, in communication, household electrical appliance, number
The fields such as word circuit have a wide range of applications；Constant-current source refers to that output electric current is fixed, and output voltage changes with the variation of load,
It has a wide range of applications in LED drive power, electron tube, instrument and meter for automation and Analogous Integrated Electronic Circuits；Constant power source
Refer to that output power is fixed, output voltage, electric current change with the variation of load, have in technological operation power supply and widely answer
With as Arc Welding Power has different operating modes in the different stages.
Currently, whether constant pressure source, constant-current source, constant power source implementation method mostly use linear power supply, Switching Power Supply or
Under the mode that linear power supply is combined with Switching Power Supply, traditional voltage-type or current mode transmission mode, power supply face switching loss,
Device for power switching problem easy to damage.
Utility model content
The technical problems to be solved in the utility model is proposed aiming at the problem that easily burning power supply, device in the prior art
A kind of high precision numerical control perseverance energy power of chopping circuit, using power-type unsteady flow transmission mode, according to setting value, loading condition,
Input state dynamic adjustment device for power switching turns on and off.Power device is opened and is closed under natural zero switching state
Disconnected, when short trouble occurs for load end, the electrical power of short dot is a determining controlling value, using common fusing mode
Power device and load can not be burnt by carrying out protection.
In order to solve the above technical problems, the utility model provides a kind of high precision numerical control perseverance energy power of chopping circuit, by
Main output loop and control loop composition, the main output loop is by DC power supply E, permanent energy copped wave bridge 2, output buffer
3 are constituted；The control loop is examined by microcontroller 7, photoelectric coupling circuit 5, input voltage and input current detection 1, output voltage electric current
It surveys 4, microcontroller power supply circuit 9, display circuit 6, key setting circuit 8 to form, microcontroller power supply circuit 9, permanent energy are cut
Wave bridge 2, output buffer 3, output voltage current detecting 4 are sequentially connected, and permanent energy copped wave bridge 2 connects with photoelectric coupling circuit 5
It connects, circuit 8 is arranged in input voltage and input current detection 1, output voltage current detecting 4, photoelectric coupling circuit 5, display circuit 6 and key
It is electrically connected respectively with microcontroller 7.
The anode of the DC power supply E is connected to the input terminal P1 of permanent energy copped wave bridge 2, and the cathode of DC power supply E is constituted
The common ground end of main output loop, respectively with the anode of the high speed diode D5 in buffer circuit 3, buffer capacitor C2 one
The other end buffer inductance L1 of end connection, buffering capacitor C2 has been connected to form the output end P3 of buffer circuit.
The perseverance energy copped wave bridge 2 includes high-power FET V1, V2, V3, V4, diode D1, D2, D3, D4, accumulation of energy
Capacitor C1, diode D1 are parallel to field-effect tube V1, and wherein the cathode of diode D1 is connected to the drain electrode of field-effect tube V1, two poles
The anode of pipe D1 is connected to the source electrode of field-effect tube V1, and diode D2 is parallel to field-effect tube V2, and diode D3 parallel connection is shown up effect
Should pipe V3, diode D4 is parallel to field-effect tube V4；The drain electrode of field-effect tube V1, V3, which connects together, constitutes permanent energy copped wave
The input terminal P1 of bridge 2, the source electrode of field-effect tube V2, V4, which connects together, constitutes the output end P2 of permanent energy copped wave bridge 2；Field effect
Should the source electrode of pipe V1 be connected to the drain electrode of field-effect tube V2, the source electrode of field-effect tube V3 is connected to the drain electrode of field-effect tube V4, stores
The anode of energy capacitor C1 is connected to the centre of field-effect tube V1, V2, and the negative terminal of energy storage capacitor C1 is connected to field-effect tube V3, V4
It is intermediate.
The output buffer 3 includes inductance L1, high speed diode D5 and capacitor C2, wherein the one end inductance L1 and high speed
The negative terminal of diode D5 connects, and constitutes the input terminal P2 of buffer circuit 3；The other end of inductance L1 is connected with capacitor C2, is constituted
The output end P3 of buffer circuit 3；The anode of high speed diode D5 and the other end of capacitor C2 have connected and composed the public of circuit
End.
In the utility model, mono- tunnel DC power supply E is for main control loop through permanent energy copped wave bridge 2, the processing of buffer circuit 3
After be supplied to load.Another way be connected to 5V D.C. regulated power supply module 9 be microcontroller 7, key be arranged circuit, display circuit 6,
Photoelectric coupling circuit 5, amplifier conditioning circuit 1, amplifier conditioning circuit 2, input voltage and input current detect 1, output voltage electric current
Detection 4 provides working power.
Input voltage and input current detection 1 constitutes voltage detecting circuit by divider resistance R1, R2, and current detection module ACS712 is used
In detection electric current, detected input voltage and input current is adjusted to 7 acceptable of microcontroller by amplifier conditioning circuit 1
Signal is linked into microcontroller 7.
Output voltage current detecting 2 constitutes voltage detecting circuit by divider resistance R3, R4, and current detection module ACS712 is used
In detection electric current, detected input voltage and input current is adjusted to 7 acceptable of microcontroller by amplifier conditioning circuit 2
Signal is linked into microcontroller 7.
Three kinds of electric source modes working principles are as follows: if (1) output mode is selected as voltage source: by key be arranged circuit 8,
It is U that output voltage, which is arranged, in display circuit 6.Load is RL at this time, and after setting output voltage, startup power supply, microcontroller 7 is exported
PWM waveform controls in permanent energy copped wave bridge 2 high-power FET V1, V2, V3, V4 sequence two-by-two by photoelectric coupling circuit 5
It cut-offs, output voltage current detecting 4 detects output voltage values, send by amplifier conditioning circuit 2 to microcontroller 7, microcontroller
Device comparison setting output voltage values and detection voltage value keep PWM wave shape parameter when consistent；Become larger when loading RL value,
When becoming smaller, detection output voltage values also change, and microcontroller adjusts output PWM wave shape parameter, it is ensured that permanent energy copped wave bridge
Output voltage values are setting voltage value U；The electric energy on energy storage capacitor when load RL opens a way, in permanent energy copped wave bridge 2
Amount is because of load RL open circuit, and without constituting circuit loop, permanent energy copped wave bridge 2 can not go out to pass, the inspection of output voltage electric current
Surveying 4 detection output current values is 0, and the control shutdown pwm signal of microcontroller 7, permanent energy copped wave bridge 2 stops working, and protects power
Device and load；When loading RL generation short circuit, the electric flux on energy storage capacitor in permanent energy copped wave bridge 2 is accumulated to microcontroller
Set circuit maximum safety value in device 7, it is set maximum safety that output voltage current detecting 4, which detects output current value,
Value, the control shutdown pwm signal of microcontroller 7, permanent energy copped wave bridge 2 stop working, and protect power device and load.
(2) if output mode is selected as current source: circuit 8 is arranged by key, the setting output electric current of display circuit 6 is I.
Load at this time is RL, and after setting output electric current, startup power supply, microcontroller 7 exports PWM waveform, by photoelectric coupling circuit 5
It controls high-power FET V1, V2, V3, V4 in permanent energy copped wave bridge 2 sequentially to cut-off two-by-two, output voltage current detecting 4 is examined
Measure output current value, send by amplifier conditioning circuit 2 to microcontroller 7, microcontroller comparison setting output current value with
Current value is detected, when consistent, keeps PWM wave shape parameter；When load RL value becomes larger, when becoming smaller, detection output current value
Also it changes, microcontroller adjusts output PWM wave shape parameter, it is ensured that permanent energy copped wave bridge output current value is setting current value
I；When load RL opens a way, the electric flux on energy storage capacitor in permanent energy copped wave bridge 2 is because of load RL open circuit, without structure
At circuit loop, permanent energy copped wave bridge 2 can not go out to pass, and it is 0 that output voltage current detecting 4, which detects output current value, micro-
The control shutdown pwm signal of controller 7, permanent energy copped wave bridge 2 stop working, and protect power device and load；When loading RL
When short-circuit, the electric flux on the energy storage capacitor in permanent energy copped wave bridge 2 accumulates the circuit maximum peace set into microcontroller 7
Total head, it is set maximum safety value, the control shutdown of microcontroller 7 PWM that output voltage current detecting 4, which detects output current value,
Signal, permanent energy copped wave bridge 2 stop working, and protect power device and load.
(3) if output mode is selected as power source: circuit 8 is arranged by key, output power is arranged as P in display circuit 6.
Load at this time is RL, and after setting output electric current, startup power supply, microcontroller 7 exports PWM waveform, by photoelectric coupling circuit 5
It controls high-power FET V1, V2, V3, V4 in permanent energy copped wave bridge 2 sequentially to cut-off two-by-two, measure voltage & current 4 detects out
To output voltage values, current value is sent by amplifier conditioning circuit 2 to microcontroller 7, and microcontroller calculates voltage, electric current
Product be output power, microcontroller comparison setting output power value and detection performance number, when consistent, keep PWM wave parameter
Number；When load RL value becomes larger, when becoming smaller, microcontroller is kept to adjust output PWM waveform parameter constant, output power holding
It is constant for P；When load RL opens a way, the electric flux on energy storage capacitor in permanent energy copped wave bridge 2 is opened a way because loading RL, and
Circuit loop is not constituted, permanent energy copped wave bridge 2 can not go out to pass, and output voltage current detecting 4 detects output current value
It is 0, the control shutdown pwm signal of microcontroller 7, permanent energy copped wave bridge 2 stops working, and protects power device and load；Work as load
When short circuit occurs for RL, the electric flux on energy storage capacitor in permanent energy copped wave bridge 2 accumulates the circuit set into microcontroller 7
Maximum safety value, it is set maximum safety value that output voltage current detecting 4, which detects output current value, and microcontroller 7 controls
Pwm signal is turned off, permanent energy copped wave bridge 2 stops working, and protects power device and load.
In the utility model, permanent energy copped wave bridge circuit is become using the energy copped wave of CN201310111195.9 discrete digital perseverance
Flow female technology；Microcontroller 7 is using the microcontroller for being built-in with A/D, PWM module；Photoelectric coupling circuit 5, amplifier conditioning circuit
1, amplifier conditioning circuit 2, key setting circuit 8, display circuit 6 are the prior art or can be by the routines of purchase acquisition
Product.
The utility model has low-loss, and multi-output mode can the progress dynamic adjustment of automatic tracing load condition.
Detailed description of the invention
Fig. 1 is the structural schematic block diagram of circuit.
Fig. 2 is main output loop circuit theory schematic diagram.
In figure: 1- current/voltage detection circuit, 2- perseverance energy copped wave bridge, 3- output buffer, 4- output electricity
Stream/voltage detecting circuit, 5- photoelectric coupling circuit, 6- display circuit, 7- microcontroller, 8- key circuit, 9-5V DC voltage-stabilizing
Power module, 10- amplify conditioning circuit 1, and 11- amplifies 2,12,13- current detecting chip of conditioning circuit, R1~R4- resistance, D1
~D4- diode, D5- high speed diode, V1~V4 high-power FET, C1~C2 capacitor, L1 inductance.
Specific embodiment
Specific embodiment of the present utility model is further described in detail with reference to the accompanying drawing, is not specified in embodiment
Technology or product, be the prior art or can by purchase obtain conventional products.
Embodiment 1: as shown in Figs. 1-2, this high precision numerical control perseverance energy power of chopping circuit, by main output loop and control
Circuit composition, main output loop are made of DC power supply E, permanent energy copped wave bridge 2, output buffer 3；Control loop is by micro-control
It is device 7 processed, photoelectric coupling circuit 5, input voltage and input current detection 1, output voltage current detecting 4, microcontroller power supply circuit 9, aobvious
Show that circuit 6, key setting circuit 8 form, microcontroller power supply circuit 9, permanent energy copped wave bridge 2, output buffer 3, output
Measure voltage & current 4 is sequentially connected, and permanent energy copped wave bridge 2 is connect with photoelectric coupling circuit 5, input voltage and input current detection 1, output
Measure voltage & current 4, photoelectric coupling circuit 5, display circuit 6 and key setting circuit 8 are electrically connected with microcontroller 7 respectively.
The anode of DC power supply E is connected to the input terminal P1 of permanent energy copped wave bridge 2, and it is defeated that the cathode of DC power supply E constitutes master
The common ground end in circuit out, one end with the anode of the high speed diode D5 in buffer circuit 3, buffering capacitor C2 connects respectively
It connects, the other end buffer inductance L1 of buffering capacitor C2 has been connected to form the output end P3 of buffer circuit.
Permanent energy copped wave bridge 2 includes high-power FET V1, V2, V3, V4, diode D1, D2, D3, D4, energy storage capacitor
C1, diode D1 are parallel to field-effect tube V1, and wherein the cathode of diode D1 is connected to the drain electrode of field-effect tube V1, diode D1
Anode be connected to the source electrode of field-effect tube V1, diode D2 is parallel to field-effect tube V2, and diode D3 is parallel to field-effect tube
V3, diode D4 are parallel to field-effect tube V4；The drain electrode of field-effect tube V1, V3, which connect together, constitutes permanent energy copped wave bridge 2
Input terminal P1, the source electrode of field-effect tube V2, V4, which connects together, constitutes the output end P2 of permanent energy copped wave bridge 2；Field-effect
The source electrode of pipe V1 is connected to the drain electrode of field-effect tube V2, and the source electrode of field-effect tube V3 is connected to the drain electrode of field-effect tube V4, accumulation of energy
The anode of capacitor C1 is connected to field-effect tube V1, and the negative terminal of the centre of V2, energy storage capacitor C1 is connected in field-effect tube V3, V4
Between.
Output buffer 3 includes inductance L1, high speed diode D5, capacitor C2, the wherein one end inductance L1 and at a high speed two poles
The negative terminal of pipe D5 connects, and constitutes the input terminal P2 of buffer circuit 3, the other end of inductance L1 is connected with capacitor C2, constituted slow
The output end P3 of circuit 3 is rushed, the anode of high speed diode D5 and the other end of capacitor C2 have connected and composed the common end of circuit.
It is described above in conjunction with technology contents of the attached drawing to the utility model, but the protection scope of the utility model is not
It is limited to the content, it within the knowledge of one of ordinary skill in the art, can also be not depart from this practical new
The technology contents of the utility model are made a variety of changes under the premise of type objective, it is all the spirit and principles of the utility model it
Any modification, equivalent substitution, improvement and etc. that are interior, being done, should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of high precision numerical control perseverance energy power of chopping circuit, it is characterised in that: it is made of main output loop and control loop,
The main output loop is made of DC power supply (E), permanent energy copped wave bridge (2), output buffer (3)；The control loop
By microcontroller (7), photoelectric coupling circuit (5), input voltage and input current detection (1), output voltage current detecting (4), display electricity
Road (6), key setting circuit (8) form, microcontroller power supply circuit (9), permanent energy copped wave bridge (2), output buffer
(3), output voltage current detecting (4) is sequentially connected, and permanent energy copped wave bridge (2) connect with photoelectric coupling circuit (5), input voltage
Current detecting (1), output voltage current detecting (4), photoelectric coupling circuit (5), display circuit (6) and key setting circuit (8)
It is electrically connected respectively with microcontroller (7).
2. high precision numerical control perseverance energy power of chopping circuit according to claim 1, it is characterised in that: the DC power supply
(E) anode is connected to the input terminal (P1) of permanent energy copped wave bridge (2), and the cathode of DC power supply (E) constitutes main output loop
Common ground end, one end with the anode of the high speed diode (D5) in buffer circuit (3), buffering capacitor (C2) connects respectively
It connects, the other end buffer inductance (L1) of buffering capacitor (C2) has been connected to form the output end (P3) of buffer circuit.
3. high precision numerical control perseverance energy power of chopping circuit according to claim 1, it is characterised in that: the perseverance energy is cut
Wave bridge (2) includes high-power FET (V1, V2, V3, V4), diode (D1, D2, D3, D4), energy storage capacitor (C1), two poles
Pipe (D1) is parallel to field-effect tube (V1), and wherein the cathode of diode (D1) is connected to the drain electrode of field-effect tube (V1), diode
(D1) anode is connected to the source electrode of field-effect tube (V1), and diode (D2) is parallel to field-effect tube (V2), and diode (D3) is simultaneously
It is linked to field-effect tube (V3), diode (D4) is parallel to field-effect tube (V4)；The drain electrode of field-effect tube (V1, V3) connects together
The input terminal (P1) of permanent energy copped wave bridge (2) is constituted, the source electrode of field-effect tube (V2, V4), which connects together, constitutes permanent energy
The output end (P2) of copped wave bridge (2)；The source electrode of field-effect tube (V1) is connected to the drain electrode of field-effect tube (V2), field-effect tube (V3)
Source electrode be connected to the drain electrode of field-effect tube (V4), the anode of energy storage capacitor (C1) is connected to the centre of field-effect tube (V1, V2),
The negative terminal of energy storage capacitor (C1) is connected to the centre of field-effect tube (V3, V4).
4. high precision numerical control perseverance energy power of chopping circuit according to claim 1, it is characterised in that: the output buffering
Circuit (3) includes inductance (L1), high speed diode (D5) and capacitor (C2), wherein inductance one end (L1) and high speed diode (D5)
Negative terminal connection, constitute the input terminal (P2) of buffer circuit (3);The other end and capacitor (C2) of inductance (L1) connect, and constitute
The output end (P3) of buffer circuit (3);The anode of high speed diode (D5) and the other end of capacitor (C2) have connected and composed electricity
The common end on road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799851.0U CN209001834U (en) | 2018-05-28 | 2018-05-28 | A kind of high precision numerical control perseverance energy power of chopping circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799851.0U CN209001834U (en) | 2018-05-28 | 2018-05-28 | A kind of high precision numerical control perseverance energy power of chopping circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001834U true CN209001834U (en) | 2019-06-18 |
Family
ID=66794886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820799851.0U Expired - Fee Related CN209001834U (en) | 2018-05-28 | 2018-05-28 | A kind of high precision numerical control perseverance energy power of chopping circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209001834U (en) |
-
2018
- 2018-05-28 CN CN201820799851.0U patent/CN209001834U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20190618 Termination date: 20210528 |