CN209545138U - Permanent direct-current electric machine controller current rectifying and wave filtering circuit - Google Patents
Permanent direct-current electric machine controller current rectifying and wave filtering circuit Download PDFInfo
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- CN209545138U CN209545138U CN201920500511.8U CN201920500511U CN209545138U CN 209545138 U CN209545138 U CN 209545138U CN 201920500511 U CN201920500511 U CN 201920500511U CN 209545138 U CN209545138 U CN 209545138U
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Abstract
The utility model provides a kind of permanent direct-current electric machine controller current rectifying and wave filtering circuit, including MCU, display circuit, rectifier bridge BR1, relay, electrolytic capacitor C1, C2, switch S1 and thermistor NTC1, NTC2, power input port inputs different voltages power supply, electrolytic capacitor C1, C2 and rectifier bridge BR1 constitutes rectification circuit, busbar voltage is detected by MCU, it realizes and is not attracted NTC bypass relay when voluntarily detecting busbar voltage when overtension in upper wrong electricity to realize to back-end circuit such as electrolytic capacitor, the protection of rectifier bridge etc., prevent electrolytic capacitor, rectifier bridge is because of excessive pressure damages, it can explode to avoid electrolytic capacitor, and user can be reminded to release mistake in time and powered on.
Description
Technical field
The utility model relates to motor drive controller commutation inversion technical fields, more particularly to a kind of permanent direct-current electric
Machine controller current rectifying and wave filtering circuit.
Background technique
In order to keep motor speed, torque controllable, power adjustable, it will usually be controlled, be driven using dedicated electric machine controller
Dynamic motor operation.Voltage used in the civilian electricity consumption in countries in the world substantially there are two types of, respectively 100~130V of AC, with AC
Bis- types of 220V~240V.AC 100V~130V is classified the voltage in low pressure, such as the U.S., Japan and ship, therefore
Its equipment is all according to such low voltage designs, and emphasis is safety；AC 220V~240V is then known as high pressure, wherein
It include AC 220V and AC 230V and many European countries of Britain of China, emphasis is efficiency.Some voltage regime
Product be not available in the country of another different power supply system, or even wrong upper voltage can damage equipment.
One: AC 100V of common scheme~130V low-voltage power supply and the product of AC 220V~240V power supply are made into two kinds at present
Different product, a kind of only to support the power supply of AC 100V~130V grade, using pressure voltage is that 200VDC electrolytic capacitor is filtered as rectification
Wave capacitor；It is another only to support the power supply of AC 220V~240V grade, it the use of the electrolytic capacitor that pressure voltage is 400VDC is rectification filter
Wave capacitor.The shortcoming of this scheme is to need to distinguish two products, and material type selecting needs to separate, and is mentioned for different products
For different parts selection and circuit design, so that management cost greatly promotes.
Two: AC 100V of common scheme~130V low pressure grade and AC 220V~240V high pressure level product uniformly make at present
It is rectifying and wave-filtering capacitor with the electrolytic capacitor that pressure voltage is 400VDC.The shortcoming of this scheme be it is at high cost, if low pressure etc.
Grade product is powered using high-pressure and low-pressure, and voltage can be of about 620VDC after multiplication of voltage, can not other in addition to electrolytic capacitor of effective protection
The normal use of device, there are security risks for product.
Utility model content
The technical problem to be solved by the utility model is in order to overcome the shortcomings in the prior art, the utility model mentions
For a kind of permanent direct-current electric machine controller current rectifying and wave filtering circuit.
The utility model solves its technical problem technical solution to be taken: a kind of permanent direct-current electric machine controller is whole
Flow filter circuit, including MCU, display circuit, rectifier bridge BR1, relay K1, electrolytic capacitor C1 and C2, switch S1, resistance R1 and
R2, thermistor NTC1 and NTC2, triode Q1 and power input port J1, the two-way of power input port J1 concatenate respectively
Thermistor NTC1 and NTC2, the other end of thermistor NTC1 are connected to an input terminal of rectifier bridge BR1, thermistor NTC2
The other end be connected to another input terminal of rectifier bridge BR1, the "+" output termination Bus+ of rectifier bridge BR1, "-" output end ground connection；
Circuit after electrolytic capacitor C1 and C2 series connection connect with resistance R1 and R2 after circuit in parallel, and the both ends of parallel circuit connect respectively
It connects on the "+" output end and "-" output end of rectifier bridge BR1；Thermistor NTC2 also concatenates one with the connecting pin of rectifier bridge BR1 and opens
Close the common end that S1 is connected to electrolytic capacitor C1 and C2；The common end of resistance R1 and R2 are connected to an input pin V_ of MCU
bus；Display circuit is connect with MCU；The base stage of triode Q1 and the output pin Relay connection of MCU, collector connect power supply,
Emitter connects relay K1 coil one end, relay K1 coil other end ground connection；Two normally opened contacts of relay K1 are distinguished
It is connected in parallel on the both ends of thermistor NTC1 and NTC2.
Specifically, the MCU uses Microchip chip, model DSPIC33EP64MC206.
Specifically, the input voltage range of the power input port J1 be AC 100V~130V or AC 220V~
240V。
Specifically, the pressure voltage of the electrolytic capacitor C1 and C2 is DC200V.
Specifically, the display circuit uses LED display module.
Specifically, the switch S1 is voltage-multiplying circuit selection switch.
The beneficial effects of the utility model are: a kind of permanent direct-current electric machine controller rectifying and wave-filtering provided by the utility model
Circuit detects busbar voltage by MCU, realizes and is not attracted NTC when voluntarily detecting busbar voltage when overtension in upper wrong electricity
Relay is bypassed to realize the protection to back-end circuit such as electrolytic capacitor, rectifier bridge etc., prevents electrolytic capacitor, rectifier bridge because of mistake
Crushing is bad, can explode to avoid electrolytic capacitor, and user can be reminded to release mistake in time and powered on；In addition, close compared to other
Scheme, the utility model can realize a kind of topological structure while can support two kinds of supply voltages power supply (AC 100V~130V grades
And AC 220V~240VAC grade), it is readily produced management.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the best embodiment of the utility model.
Specific embodiment
The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.
As shown in Figure 1, a kind of permanent direct-current electric machine controller current rectifying and wave filtering circuit of the utility model, including MCU, display
Circuit, rectifier bridge BR1, relay K1, electrolytic capacitor C1 and C2, switch S1, resistance R1 and R2, thermistor NTC1 and NTC2,
Triode Q1 and power input port J1, the two-way of power input port J1 concatenate thermistor NTC1 and NTC2 respectively, heat
The other end of quick resistance NTC1 is connected to an input terminal of rectifier bridge BR1, and the other end of thermistor NTC2 is connected to rectifier bridge
Another input terminal of BR1, the "+" output termination Bus+ of rectifier bridge BR1, "-" output end ground connection；After electrolytic capacitor C1 and C2 series connection
Circuit connect with resistance R1 and R2 after circuit in parallel, and the both ends of parallel circuit be separately connected rectifier bridge BR1 "+" output
On end and "-" output end；Thermistor NTC2 also concatenates a switch S1 with the connecting pin of rectifier bridge BR1 and is connected to electrolytic capacitor C1
With the common end of C2；The common end of resistance R1 and R2 are connected to an input pin V_bus of MCU；Display circuit is connect with MCU；
The base stage of triode Q1 and the output pin Relay connection of MCU, collector connect power supply, which is 15V power supply, emitter
Connect relay K1 coil one end, relay K1 coil other end ground connection；Two normally opened contacts of relay K1 are connected in parallel on respectively
The both ends of thermistor NTC1 and NTC2.
Specifically, the MCU uses Microchip chip, model: DSPIC33EP64MC206.
Specifically, the input voltage range of the power input port J1 be AC 100V~130V or AC 220V~
240V。
Specifically, the pressure voltage of the electrolytic capacitor C1 and C2 is DC200V.
Specifically, the display circuit uses LED display module, it is preferred that LED display module uses TCF-2451BMR-
N4.Signal is passed to the control unit of display module by communication by MCU, and the control unit control LED of display module shows mould
Block realizes warning display.
Specifically, the switch S1 is voltage-multiplying circuit selection switch.Preferably, voltage-multiplying circuit selection switch S1 uses RF-
1002K。
Working principle:
Use the electric product of voltage-multiplying circuit and toggle switch S1 selection voltage class, current rectifying and wave filtering circuit Some principles
Figure is as shown in Figure 1, supply voltage can be selected as 100V~130V grades and AC 220V~240V grades of AC as needed.
When AC 100V~130V voltage gear to be selected power supply, need for S1 to be closed, electrolytic capacitor C1, C2 and rectifier bridge
BR1 constitutes voltage doubling rectifing circuit.
When AC 220V~240V voltage gear to be selected power supply, need to disconnect switch S1, electrolytic capacitor C1, C2 series connection,
Electrolytic capacitor and rectifier bridge BR1 constitute unidirectional full bridge rectifier.
Triode Q1 plays the role of power amplification, and the instruction of MCU control relay is controlled relay after power amplification
Device movement.
Resistance R1 and R2 play the role of decompression, partial pressure, and the high voltage signal on Bus+ obtains after R1 and R2 series connection partial pressure
To one, normally the appropriate voltage between 0~3.3V, the ADC mouth that this voltage signal is sent to MCU are real for busbar voltage
When detection use.
When practical operation, the on-off line operation of S1 is realized using toggle switch.
After powering on, because relay contact disconnects under default conditions, string has thermistor NTC in rectification circuit topology, plays
The effect of current limliting and partial pressure；
With the progress that electrolytic capacitor charges, DC bus-bar voltage is gradually increased, and Switching Power Supply first starts to work normally, this
Afterwards, MCU obtains reset start-up operation；MCU first timing certain time after the completion of resetting, it is ensured that charging is sufficiently completed, in this time
Interior real-time detection bus voltage value, if voltage is in 200VDC (containing 200V) to 380VDC (containing 380V) range, MCU will judge electricity
Positive pressure is normal, and attracting electric relay is controlled after timing, and circuit will enter normal operating conditions.
If after powering on, MCU resets the voltage value detected after work beyond 200VDC, first not attracting electric relay, but prolongs
When 3S, and continue to test busbar voltage real time value, if busbar voltage is persistently increased to 380V (without 380V) or more, will sentence
Not Wei abnormal voltage input, MCU is maintained at off-state for relay is controlled, and shows that overvoltage is warned by LED display module
Show character " OVER VOLTAGE！", remind user to power off in time.
The utility model changes the upgrading of conventional motors controller rectification circuit from protection motor and controller angle
It makes, first is that the dip-switch package for being additionally arranged a kind of voltage selection is controlled second is that increasing voltage protection circuit with related at voltage-multiplying circuit
Logic processed makes product can be used to AC 100V~130V voltage input grade, also can be applied to AC 220V~240V voltage
Grade.Product is set to accomplish compatible two kinds international common voltage grades, and (toggle switch S1 is in low pressure shelves in electric voltage exception input
When high input voltage) fatal damage will not be caused to motor and electric machine controller.
It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (6)
1. a kind of permanent direct-current electric machine controller current rectifying and wave filtering circuit, it is characterised in that: including MCU, display circuit, rectifier bridge
BR1, relay K1, electrolytic capacitor C1 and C2, switch S1, resistance R1 and R2, thermistor NTC1 and NTC2, triode Q1 and
Power input port J1, the two-way of power input port J1 concatenate thermistor NTC1 and NTC2 respectively, thermistor NTC1's
The other end is connected to an input terminal of rectifier bridge BR1, and the other end of thermistor NTC2 is connected to another input of rectifier bridge BR1
End, the "+" output termination Bus+ of rectifier bridge BR1, "-" output end ground connection；Circuit and resistance after electrolytic capacitor C1 and C2 series connection
Circuit in parallel after R1 and R2 series connection, and the both ends of parallel circuit are separately connected "+" output end and the "-" output of rectifier bridge BR1
On end；Thermistor NTC2 also concatenates a switch S1 with the connecting pin of rectifier bridge BR1 and is connected to the public of electrolytic capacitor C1 and C2
End；The common end of resistance R1 and R2 are connected to an input pin V_bus of MCU；Display circuit is connect with MCU；Triode Q1's
The output pin Relay connection of base stage and MCU, collector connect power supply, and emitter connects relay K1 coil one end, relay
K1 coil other end ground connection；Two normally opened contacts of relay K1 are connected in parallel on the both ends of thermistor NTC1 and NTC2 respectively.
2. permanent direct-current electric machine controller current rectifying and wave filtering circuit as described in claim 1, it is characterised in that: the MCU is used
Microchip chip, model DSPIC33EP64MC206.
3. permanent direct-current electric machine controller current rectifying and wave filtering circuit as described in claim 1, it is characterised in that: the power input
The input voltage of port J1 is AC 100V~130V or AC 220V~240V.
4. permanent direct-current electric machine controller current rectifying and wave filtering circuit as described in claim 1, it is characterised in that: the electrolytic capacitor
The pressure voltage of C1 and C2 is DC200V.
5. permanent direct-current electric machine controller current rectifying and wave filtering circuit as described in claim 1, it is characterised in that: the display circuit
Using LED display module.
6. permanent direct-current electric machine controller current rectifying and wave filtering circuit as described in claim 1, it is characterised in that: the switch S1 is
Voltage-multiplying circuit selection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920500511.8U CN209545138U (en) | 2019-04-12 | 2019-04-12 | Permanent direct-current electric machine controller current rectifying and wave filtering circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920500511.8U CN209545138U (en) | 2019-04-12 | 2019-04-12 | Permanent direct-current electric machine controller current rectifying and wave filtering circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209545138U true CN209545138U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920500511.8U Active CN209545138U (en) | 2019-04-12 | 2019-04-12 | Permanent direct-current electric machine controller current rectifying and wave filtering circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886838A (en) * | 2021-03-26 | 2021-06-01 | 合肥美菱物联科技有限公司 | Frequency conversion board power control circuit |
-
2019
- 2019-04-12 CN CN201920500511.8U patent/CN209545138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886838A (en) * | 2021-03-26 | 2021-06-01 | 合肥美菱物联科技有限公司 | Frequency conversion board power control circuit |
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