CN205986662U - AC motor isolating driver power supply unit - Google Patents
AC motor isolating driver power supply unit Download PDFInfo
- Publication number
- CN205986662U CN205986662U CN201620851841.8U CN201620851841U CN205986662U CN 205986662 U CN205986662 U CN 205986662U CN 201620851841 U CN201620851841 U CN 201620851841U CN 205986662 U CN205986662 U CN 205986662U
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- China
- Prior art keywords
- switch element
- circuit
- alternating current
- control circuit
- bridge
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Abstract
The utility model discloses a AC motor isolating driver power supply unit comprises rectifier bridge, coupling drive circuit, ON -OFF control circuit and bridge type combination switch output circuit, it is right that the coupling drive circuit utilizes the positive and negative half -wave cycle of alternating current to produce ON -OFF control circuit's synchro -driven signal, by ON -OFF control circuit implements control to two sets of switch element of bridge type combination switch output circuit respectively to realize the isolation output of alternating current. The utility model discloses simply, reliably, cheaply, it uses to be applicable to the electromechanical product drive control of various interchanges.
Description
Technical field
This utility model is related to AC Motor Control field, specifically a kind of alternating current generator isolation drive power supply dress
Put.
Background technology
With the extensive application of electronic product Based Intelligent Control, particularly in the control for alternating current generator, traditional drive
Movement controller to alternating current generator equipment implement on-off control when, often because of the impact of counter electromotive force produced by reactance,
Fatal destruction is produced to drive control device.And adopt the isolation drive equipment of inverting, high cost, volume big it is difficult to real
With.
Utility model content
This utility model take full advantage of photo-coupler zero point detection and bootstrap type driving principle it is achieved that no induction reactance every
From driving.Simply, reliably, inexpensively it is adaptable to various exchange electronic product drive controls are applied.
Technical scheme is as follows：
A kind of alternating current generator isolation drive supply unit, including by rectifier bridge, coupling drive circuit, ON-OFF control circuit and
Bridge-type cubicle switch output circuit, described coupling drive circuit produces the level signal synchronous with ac period and opens as described
Close the synchronized signal of control circuit；Described ON-OFF control circuit is opened to first in described bridge-type cubicle switch output circuit
Close element and second switch element is implemented on-off control and implemented switch control to the 3rd switch element and the 4th switch element
System, thus what described rectifier bridge was provided is reduced to complete sine with the rectifier output voltage that ac input circuit is isolated
Ripple be AC electrically isolated from output.
Described rectifier bridge, coupling drive circuit, ON-OFF control circuit, bridge-type cubicle switch output circuit are sequentially connected electrically.
Port A, B of described coupling drive circuit is connected with port a, b of described ON-OFF control circuit respectively and carries respectively
For synchronous drive signal Va and Vb of ac period.
Described ON-OFF control circuit port K1, K2 respectively with bridge-type cubicle switch output circuit in first switch element and
Second switch element electrically connects.
Described ON-OFF control circuit port K3, K4 respectively with bridge-type cubicle switch output circuit in the 3rd switch element and
4th switch element electrical connection.
Two outfans of described rectifier bridge respectively with described bridge-type cubicle switch output circuit in first switch element
With the input of the 3rd switch element, and second switch element and the 4th switch element outfan electrical connection.
When alternating current inputs as positive half-wave, the drive level signal of described ON-OFF control circuit foundation drive signal Va,
Described first switch element and second switch element conductive are controlled respectively by K1, K2 port, is divided by K3, K4 port meanwhile
Kong Zhi the 3rd switch element and the 4th switch element not disconnect, thus producing the forward current Im flowing through alternating current generator.
When alternating current inputs as negative half-wave, the drive level signal of described ON-OFF control circuit foundation drive signal Vb,
Control described first switch element and second switch element to disconnect respectively by K1, K2 port, divided by K3, K4 port meanwhile
Not Kong Zhi the 3rd switch element and the 4th switching elements conductive, thus produce flowing through the reverse current Im ' of alternating current generator.
Described coupling drive circuit adopts two groups of unidirectional photo-coupler testing circuits.
Described ON-OFF control circuit is the first switch element of described bridge-type cubicle switch output circuit, second switch unit
Part, the 3rd switch element and the 4th switch element provide driving voltage.
Described first switch element, second switch element, the 3rd switch element and the 4th switch element are metal-oxide-semiconductor, I GBT
Or controllable silicon.
Beneficial effect:This utility model due to employing technique scheme, its simple, reliable, cheap it is adaptable to various
Exchange electronic product drive control application.
Brief description
Fig. 1 is this utility model embodiment theory diagram.
Fig. 2 is one of this utility model embodiment principle exploded view.
Fig. 3 is the two of this utility model embodiment principle exploded view.
Fig. 4 is this utility model embodiment drive waveforms figure.
Fig. 5 is this utility model embodiment output current wave figure.
Label represents：Rectifier bridge 1, coupling drive circuit 2, ON-OFF control circuit 3, bridge-type cubicle switch output circuit 4, hand over
Stream motor 5, first switch element 41, first switch element 42, first switch element 43, first switch element 44.
Specific embodiment
Referring to Fig. 1-5, a kind of alternating current generator isolation drive supply unit, rectifier bridge 1, coupling drive circuit 2, on-off control
Circuit 3, bridge-type cubicle switch output circuit 4 are sequentially connected electrically.
Port A, B of described coupling drive circuit 2 is connected and distinguishes with port a, b of described ON-OFF control circuit 3 respectively
There is provided ac period synchronous drive signal Va and Vb.
Described ON-OFF control circuit 3 port K1, K2 respectively with bridge-type cubicle switch output circuit 4 in first switch element
41 and second switch element 42 electrically connect.
Described ON-OFF control circuit 3 port K3, K4 respectively with bridge-type cubicle switch output circuit 4 in the 3rd switch element
43 and the 4th switch element 44 electrically connect.
Two outfans of described rectifier bridge 1 are first with the first switch in described bridge-type cubicle switch output circuit 4 respectively
Part 41 and the input of the 3rd switch element 43, and the outfan electrical connection of second switch element 42 and the 4th switch element 44.
Described coupling drive circuit 2 produces the level signal synchronous with ac period as described ON-OFF control circuit 3
Synchronized signal；Described ON-OFF control circuit 3 is to the first switch element 41 in described bridge-type cubicle switch output circuit 4
Implement on-off control with second switch element 42 and to the 3rd switch element 43 and the 4th switch element 44 enforcement switch control
System, thus described rectifier bridge 1 is provided with the rectifier output voltage that ac input circuit is isolated be reduced to complete just
String ripple be AC electrically isolated from output.
In one embodiment, described coupling drive circuit 2 adopts two groups of unidirectional photo-coupler testing circuits.
In one embodiment, described ON-OFF control circuit 3 is the first switch of described bridge-type cubicle switch output circuit 4
Element 41, second switch element 42, the 3rd switch element 43 and the 4th switch element 44 provide driving voltage.
In one embodiment, described first switch element 41, second switch element 42, the 3rd switch element 43 and the 4th
Switch element 44 is metal-oxide-semiconductor, I GBT or controllable silicon.
Referring to Fig. 1, described rectifier bridge 1 provides the full wave voltage output V with alternating current input isolation, described coupling driving
A, b end that A, B port of circuit 2 is respectively described ON-OFF control circuit 3 provides the drive signal Va synchronous with ac period
And Vb.
Referring to Fig. 2, when alternating current inputs as positive half-wave, described ON-OFF control circuit 3 is according to the driving of drive signal Va
Level signal, controls described first switch element 41 and second switch element 42 to turn on by K1, K2 port respectively, leads to meanwhile
Crossing K3, K4 port controls the 3rd switch element 43 and the 4th switch element 44 to disconnect respectively, thus produce flowing through alternating current generator 5
Forward current Im.
Referring to Fig. 3, contrary, when alternating current inputs as negative half-wave, described ON-OFF control circuit 3 is according to drive signal Vb
Drive level signal, control described first switch element 41 and second switch element 42 to disconnect respectively by K1, K2 port, with
When, control the 3rd switch element 43 and the 4th switch element 44 to turn on respectively by K3, K4 port, thus produce flowing through alternating current
The reverse current Im ' of machine 5.
So circulating repetition, provides complete sine wave AC electricity output I to described alternating current generator 5.
Above this utility model case study on implementation is described in detail, for one of ordinary skill in the art, foundation
The thought of this utility model embodiment, all will change in specific embodiments and applications, in sum, this theory
Bright book content should not be construed as to restriction of the present utility model.
Claims (6)
1. a kind of alternating current generator isolation drive supply unit, including rectifier bridge (1), coupling drive circuit (2), ON-OFF control circuit
(3) and bridge-type cubicle switch output circuit (4) it is characterised in that：Described coupling drive circuit (2) produces same with ac period
The level signal of step is as the synchronized signal of described ON-OFF control circuit (3)；Described ON-OFF control circuit (3) is to described bridge
First switch element (41) in formula cubicle switch output circuit (4) and second switch element (42) implement on-off control and
On-off control is implemented to the 3rd switch element (43) and the 4th switch element (44), thus described rectifier bridge (1) is provided
It is AC electrically isolated from output with the rectifier output voltage that ac input circuit is isolated is reduced to complete sine wave.
2. a kind of alternating current generator isolation drive supply unit according to claim 1 it is characterised in that
Described rectifier bridge (1), coupling drive circuit (2), ON-OFF control circuit (3), bridge-type cubicle switch output circuit (4) are successively
Electrical connection；
Port A, B of described coupling drive circuit (2) are connected and distinguish with port a, b of described ON-OFF control circuit (3) respectively
There is provided ac period synchronous drive signal Va and Vb；
Described ON-OFF control circuit (3) port K1, K2 respectively with bridge-type cubicle switch output circuit (4) in first switch element
(41) electrically connect with second switch element (42)；
Described ON-OFF control circuit (3) port K3, K4 respectively with bridge-type cubicle switch output circuit (4) in the 3rd switch element
(43) electrically connect with the 4th switch element (44)；
Two outfans of described rectifier bridge (1) are first with the first switch in described bridge-type cubicle switch output circuit (4) respectively
Part (41) and the input of the 3rd switch element (43), and the outfan of second switch element (42) and the 4th switch element (44)
Electrical connection.
3. a kind of alternating current generator isolation drive supply unit according to claim 2 it is characterised in that
When alternating current inputs as positive half-wave, described ON-OFF control circuit (3), according to the drive level signal of drive signal Va, is led to
Cross K1, K2 port and control described first switch element (41) and second switch element (42) conducting respectively, meanwhile, by K3, K4
Port controls the 3rd switch element (43) and the 4th switch element (44) to disconnect respectively, thus produce flowing through alternating current generator (5)
Forward current (Im)；
When alternating current inputs as negative half-wave, described ON-OFF control circuit (3), according to the drive level signal of drive signal Vb, is led to
Crossing K1, K2 port controls described first switch element (41) and second switch element (42) to disconnect, meanwhile, by K3, K4 respectively
Port controls the 3rd switch element (43) and the conducting of the 4th switch element (44) respectively, thus produce flowing through alternating current generator (5)
Reverse current (Im ').
4. a kind of alternating current generator isolation drive supply unit according to claim 1 and 2 is it is characterised in that described coupling
Drive circuit (2) adopts two groups of unidirectional photo-coupler testing circuits.
5. a kind of alternating current generator isolation drive supply unit according to claim 1 is it is characterised in that described on-off control
Circuit (3) is the first switch element (41) of described bridge-type cubicle switch output circuit (4), second switch element (42), the 3rd
Switch element (43) and the 4th switch element (44) provide driving voltage.
6. a kind of alternating current generator isolation drive supply unit according to claim 1 and 2 is it is characterised in that described first
Switch element (41), second switch element (42), the 3rd switch element (43) and the 4th switch element (44) are metal-oxide-semiconductor, IGBT
Or controllable silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620851841.8U CN205986662U (en) | 2016-08-07 | 2016-08-07 | AC motor isolating driver power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620851841.8U CN205986662U (en) | 2016-08-07 | 2016-08-07 | AC motor isolating driver power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986662U true CN205986662U (en) | 2017-02-22 |
Family
ID=58030208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620851841.8U Expired - Fee Related CN205986662U (en) | 2016-08-07 | 2016-08-07 | AC motor isolating driver power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205986662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026729A (en) * | 2016-08-07 | 2016-10-12 | 黎辉 | Alternating current motor isolation drive power supply device |
-
2016
- 2016-08-07 CN CN201620851841.8U patent/CN205986662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026729A (en) * | 2016-08-07 | 2016-10-12 | 黎辉 | Alternating current motor isolation drive power supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170222 Termination date: 20190807 |