CN206250835U - Voltage transformer power-supply device and its power supply prepared auto restart control device - Google Patents
Voltage transformer power-supply device and its power supply prepared auto restart control device Download PDFInfo
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- CN206250835U CN206250835U CN201621352862.1U CN201621352862U CN206250835U CN 206250835 U CN206250835 U CN 206250835U CN 201621352862 U CN201621352862 U CN 201621352862U CN 206250835 U CN206250835 U CN 206250835U
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- voltage transformer
- power supply
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Abstract
The utility model is related to a kind of voltage transformer power-supply device and its power supply prepared auto restart control device,Power supply prepared auto restart control device includes the first controlling switch,Second controlling switch,3rd controlling switch,4th controlling switch,First output end and the second output end,3rd output end and the 4th output end,First controlling switch,Second controlling switch,3rd controlling switch and the 4th controlling switch include control unit,First contact and the second contact,Voltage transformer power-supply device includes power supply prepared auto restart control device,Common voltage transformer power supply and standby voltage transformer power supply,Power supply prepared auto restart control device connects common voltage transformer power supply and standby voltage transformer power supply,Voluntarily switched between the common voltage transformer power supply and standby voltage transformer power supply by power supply prepared auto restart control device control voltage transformer power-supply device,Efficiency high,The normal power supply to user is not interfered with.
Description
Technical field
The utility model is related to field of electrical control, and more particularly to a kind of voltage transformer power-supply device and its power supply are standby
Haul oneself willingly into control device.
Background technology
Now with the development of social economy, some large-scale enterprises and institutions, market, hospital and Political and Cultural activity
Center etc. is improved to power supply reliability requirement, to ensure the electricity consumption reliability of relative users enterprise, it will usually prepare standby electricity
Source.
When conventional control power supply hinders power-off for some reason, it is impossible to which when continuation is powered to user terminal, traditional way is work
Personnel carry out grid switching operation temporarily, switch to stand-by power supply, but so consuming time is more long, and efficiency is low, and user can be made
Into serious negative effect.
Utility model content
Based on this, it is necessary to regarding to the issue above, there is provided one kind can expeditiously in conventional control power supply and standby control
The voltage transformer power supply prepared auto restart control device of switching is realized between power supply.
A kind of power supply prepared auto restart control device of voltage transformer power-supply device, including the first controlling switch, the second control
Switch, the 3rd controlling switch, the 4th controlling switch, the first output end and the second output end, the 3rd output end and the 4th output end,
First controlling switch, second controlling switch, the 3rd controlling switch and the 4th controlling switch include control
Portion processed, the first contact and the second contact, first output end and second output end connect voltage transformer power supply respectively
The two ends of the common voltage transformer power supply of equipment, the 3rd output end and the 4th output end connect the voltage respectively
The two ends of the standby voltage transformer power supply of transformer power-supply device；The control unit connection of first controlling switch is described conventional
The two ends of voltage transformer power supply, the control unit of second controlling switch connects the two of the standby voltage transformer power supply
End；First contact of first controlling switch, the first contact of second controlling switch and the 3rd controlling switch
Control unit series connection after one end connection external power source positive pole, the other end connection external power source negative pole；First controlling switch
One end connection after the control unit series connection of the second contact, the second contact of second controlling switch and the 4th controlling switch
External power source positive pole, other end connection external power source negative pole；First contact of the 3rd controlling switch and the 4th control
One end connects first output end after first contact shunt of switch, and the other end connects the 3rd output end；Described 3rd
One end connects second output end after second contact shunt of the second contact of controlling switch and the 4th controlling switch, separately
One end connects the 4th output end；First contact of first controlling switch leads in the control unit of first controlling switch
Closed when electric, the second contact of first controlling switch is powered in the control unit of first controlling switch and disconnects；Described
First contact of two controlling switches disconnects when the control unit of second controlling switch is powered, and the of second controlling switch
Two contacts close when the control unit of second controlling switch is powered；Touch first contact of the 3rd controlling switch and second
Point is closed when the control unit of the 3rd controlling switch is powered, and first contact and the second contact of the 4th controlling switch exist
Closed when the control unit of the 4th controlling switch is powered.
A kind of voltage transformer power-supply device including power supply prepared auto restart control device, including power supply prepared auto restart control dress
Put, common voltage transformer power supply and standby voltage transformer power supply, the power supply prepared auto restart control device connection is described conventional
Voltage transformer power supply and the standby voltage transformer power supply.
Above-mentioned voltage transformer power-supply device and its power supply prepared auto restart control device, when the conventional electricity of voltage transformer equipment
During pressure transformer power supply normal power supply, the control unit of the first controlling switch is powered, first closing of contact of the first controlling switch, the
Second contact of one controlling switch disconnects, and the control unit of the 3rd controlling switch obtains electric adhesive, the control unit of the 4th controlling switch without
Method adhesive, the first contact of the 3rd controlling switch and second closing of contact, the first output end, the second output end, the 3rd output end
With the 4th output end output control power supply, when the common voltage transformer power cut-off of voltage transformer equipment, voltage transformer
The standby voltage transformer power supply of equipment will come into operation；When the standby voltage transformer power supply of voltage transformer equipment is powered
When, the control unit of the second controlling switch is powered, first closing of contact of the second controlling switch, the second contact of the second controlling switch
Disconnect, the control unit of the 4th controlling switch obtains electric adhesive, the control unit of the 3rd controlling switch cannot adhesive, the 4th controlling switch
First contact and second closing of contact, the first output end, the second output end, the 3rd output end and the 4th output end output control electricity
Source, when the common voltage transformer power supply normal power-up of voltage transformer equipment, the standby voltage mutual inductance of voltage transformer equipment
Device power supply will be exited voluntarily, by the common voltage transformer of power supply prepared auto restart control device control voltage transformer power-supply device
Voluntarily switched between power supply and standby voltage transformer power supply, efficiency high does not interfere with the normal power supply to user.
Brief description of the drawings
Fig. 1 is common voltage transformer power supply, standby voltage transformer power supply and power supply prepared auto restart control in an embodiment
The part circuit structure figure of device；
Fig. 2 is the part-structure figure of power supply prepared auto restart control device in an embodiment；
Fig. 3 is the structure chart of voltage transformer power-supply device in an embodiment.
Specific embodiment
In one embodiment, as shown in Figure 1, 2, the power supply prepared auto restart control device of a kind of voltage transformer power-supply device
110, including the first controlling switch KA1, the second controlling switch KA2, the 3rd controlling switch KA3, the 4th controlling switch KA4, first
Output end and the second output end, the 3rd output end and the 4th output end, the first controlling switch KA1, the second controlling switch KA2,
Three controlling switch KA3 and the 4th controlling switch KA4 include control unit, the first contact and the second contact, the first output end and the
Two output ends connect the two ends of the common voltage transformer power supply 120 of voltage transformer power-supply device respectively, the 3rd output end and
4th output end connects the two ends of the standby voltage transformer power supply 130 of voltage transformer power-supply device respectively；First control is opened
The two ends of the control unit connection common voltage transformer power supply 120 of KA1 are closed, the control unit connection of the second controlling switch KA2 is standby
The two ends of voltage transformer power supply 130；First contact of the first controlling switch KA1, the second controlling switch KA2 the first contact with
And the 3rd controlling switch KA3 control unit series connection after one end connection external power source positive pole, the other end connection external power source negative pole；The
The control unit of second contact of one controlling switch KA1, second contact of the second controlling switch KA2 and the 4th controlling switch KA4
Connection external power source positive pole in one end after series connection, other end connection external power source negative pole；First contact of the 3rd controlling switch KA3 and
One end connects the first output end after first contact shunt of the 4th controlling switch KA4, and the other end connects the 3rd output end；3rd control
One end connects the second output end, the other end behind second contact of system switch KA3 and second contact shunt of the 4th controlling switch KA4
Connect the 4th output end；First contact of the first controlling switch KA1 closes when the control unit of the first controlling switch KA1 is powered,
Second contact of the first controlling switch KA1 is powered in the control unit of the first controlling switch KA1 and disconnects；Second controlling switch KA2's
First contact disconnects when the control unit of the second controlling switch KA2 is powered, and second contact of the second controlling switch KA2 is in the second control
The control unit of system switch KA2 is closed when being powered；First contact and the second contact of the 3rd controlling switch KA3 are in the 3rd controlling switch
Closed when the control unit of KA3 is powered, first contact and the second contact of the 4th controlling switch KA4 are the 4th controlling switch KA4's
Closed when control unit is powered.
Specifically, the type of controlling switch is not unique, is specifically as follows relay or other kinds of controlling switch, this
In embodiment, controlling switch is auxiliary reclay, and the coil of auxiliary reclay is used as the control unit for corresponding to controlling switch.
Specifically, when common voltage transformer 120 normal power supply of power supply of voltage transformer equipment, the first controlling switch
The control unit of KA1 is powered, first closing of contact of the first controlling switch KA1, and second contact of the first controlling switch KA1 disconnects,
The control unit of the 3rd controlling switch KA3 obtains electric adhesive, and the control unit of the 4th controlling switch KA4 cannot adhesive, the 3rd controlling switch
First contact of KA3 and second closing of contact, the output of the first output end, the second output end, the 3rd output end and the 4th output end
Control power supply, when the common voltage transformer power supply 120 of voltage transformer equipment is powered off, the standby voltage of voltage transformer equipment
Transformer power supply 130 will come into operation；When the standby voltage transformer power supply 130 of voltage transformer equipment is powered, the second control
The control unit of system switch KA2 is powered, first closing of contact of the second controlling switch KA2, second contact of the second controlling switch KA2
Disconnect, the control unit of the 4th controlling switch KA4 obtains electric adhesive, and the control unit of the 3rd controlling switch KA3 cannot adhesive, the 4th control
Switch the first contact and second closing of contact of KA4, the first output end, the second output end, the 3rd output end and the 4th output end
Output control power supply, when the normal power-up of common voltage transformer power supply 120 of voltage transformer equipment, voltage transformer equipment
Standby voltage transformer power supply 130 will be exited voluntarily.
The power supply prepared auto restart control device 110 of above-mentioned voltage transformer power-supply device, by power supply prepared auto restart control device
Carried out between the common voltage transformer power supply 120 and standby voltage transformer power supply 130 of 110 control voltage transformer power-supply devices
Voluntarily switch, efficiency high, do not interfere with the normal power supply to user.
In one embodiment, the first controlling switch KA1 also includes the 3rd contact and the 4th contact, the first controlling switch
One end of one end connection common voltage transformer power supply 120 of the 3rd contact, the 3rd contact of the first controlling switch KA1 it is another
The first output end of end connection, one end of the 4th contact of the first controlling switch KA1 connects the another of common voltage transformer power supply 120
One end, the other end of the 4th contact of the first controlling switch KA1 connects the second output end.
Specifically, the 3rd contact of the first controlling switch KA1 and the 4th contact of the first controlling switch KA1 can prevent electricity
Source is counter to be sent, and improves the security of power supply prepared auto restart control device 110.
In one embodiment, the second controlling switch KA2 also includes the 3rd contact and the 4th contact, the second controlling switch
One end of 3rd contact of KA2 connects one end of standby voltage transformer power supply 130, the 3rd contact of the second controlling switch KA2
The other end connect the 3rd output end, the 4th contact of the second controlling switch KA2 one end connection standby voltage transformer power supply
130 other end, the other end of the 4th contact of the second controlling switch KA2 connects the 4th output end.
Specifically, the 3rd contact of the second controlling switch KA2 and the 4th contact of the second controlling switch KA2 can prevent electricity
Source is counter to be sent, and improves the security of power supply prepared auto restart control device 110.
In one embodiment, power supply prepared auto restart control device 110 also includes first fuse 112, second fuse 114
With the 3rd fuse 116, one end of first fuse 112 connects the positive pole of external power source, the other end of first fuse 112 the
The common port of second contact of first contact of one controlling switch KA1 and the second controlling switch KA2；The one of second fuse 114
End connects common voltage transformer power supply 120, and the other end connects the first output end；One end connection of the 3rd fuse 116 is standby
Voltage transformer power supply 130, the other end connects the 3rd output end.
Specifically, fuse refers to, when electric current exceedes setting, melt is fused with the heat that itself is produced, and disconnects electricity
A kind of electrical equipment on road, fuse is after exceeding setting for a period of time according to electric current, melt to be melted with its own heat for producing
Change, so that circuit disconnects, fuse is installed in power supply prepared auto restart control device 110, effectively improve the control of power supply prepared auto restart
The security of device 110.
In one embodiment, as shown in figure 3, a kind of voltage transformer power-supply device, including power supply prepared auto restart control is filled
110, common voltage transformer power supply 120 and standby voltage transformer power supply 130 are put, power supply prepared auto restart control device 110 is connected
Common voltage transformer power supply 120 and standby voltage transformer power supply 130.
Specifically, the first output end and the second output end connect the two ends of common voltage transformer power supply 120, the 3rd respectively
Output end and the 4th output end connect the two ends of standby voltage transformer power supply 130 respectively；The control unit of the first controlling switch KA1
The two ends of connection common voltage transformer power supply 120, the control unit connection standby voltage transformer power supply of the second controlling switch KA2
130 two ends.
The above-mentioned voltage transformer power-supply device including power supply prepared auto restart control device 110, is controlled by power supply prepared auto restart
Between the common voltage transformer power supply 120 and standby voltage transformer power supply 130 of the control voltage transformer power-supply device of device 110
Voluntarily switched, efficiency high, do not interfered with the normal power supply to user.
In one embodiment, common voltage transformer power supply 120 includes first voltage transformer and the first control transformation
Device, the once end connection line power supply of first voltage transformer, the secondary terminals connection first of first voltage transformer controls transformation
The once end of device, the secondary terminals of the first control transformer are connected in parallel with the control unit of the first controlling switch KA1, and the first control becomes
The secondary terminals both sides of depressor connect the first output end and the second output end respectively.
Specifically, the side of the secondary terminals of the first control transformer connects one end of the control unit of the first controlling switch KA1
With the first output end, first controls the another of the control unit of the first controlling switch KA1 of opposite side connection of the secondary terminals of transformer
End and the second output end.
Specifically, the voltage that first voltage transformer is used on conversion line, the first control transformer is used for voltage change
The need for adapt to load, it is also used as being used every piezoelectric transformer, reduces the probability for getting an electric shock, it can be ensured that operating personnel and instrument
The safety of table, is additionally operable to prevent that the power supply of 220V is counter to be sent to 10kV, improves the security of power transformer power-supply device.
In one embodiment, common voltage transformer power supply 120 also includes the first high-tension fuse 122 and the second high pressure
One end connection line power supply of fuse 124, the first high-tension fuse 122 and the second high-tension fuse 124, the first high-voltage fuse
The other end of the high-tension fuse 124 of device 122 and second connects the once end both sides of first voltage transformer.
Specifically, the first high-tension fuse 122 and the second high-tension fuse 124 be used to protecting electrical equipment against overload and
The infringement of short circuit current, improves the security of power transformer power-supply device.
In one embodiment, common voltage transformer power supply 120 includes the 4th fuse 126, common voltage transformer
One end of 4th fuse 126 of power supply 120 connects the secondary terminals of first voltage transformer, and other end connection first controls transformation
The once end of device.
Specifically, fuse refers to, when electric current exceedes setting, melt is fused with the heat that itself is produced, and disconnects electricity
A kind of electrical equipment on road, fuse is after exceeding setting for a period of time according to electric current, melt to be melted with its own heat for producing
Change, so that circuit disconnects, install molten on common voltage transformer power supply 120 and the circuit of standby voltage transformer power supply 130
Disconnected device, effectively improves the security of power supply prepared auto restart control device 110.
In one embodiment, standby voltage transformer power supply 130 includes the 5th fuse 136, standby voltage transformer
One end of 5th fuse 136 of power supply 130 connects the secondary terminals of second voltage transformer, and other end connection second controls transformation
The once end of device.
In one embodiment, standby voltage transformer power supply 130 includes second voltage transformer and the second control transformation
Device, the once end connection line power supply of second voltage transformer, the secondary terminals connection second of second voltage transformer controls transformation
The once end of device, the secondary terminals of the second control transformer are connected in parallel with the control unit of the second controlling switch KA2, and the second control becomes
The secondary terminals both sides of depressor connect the 3rd output end and the 4th output end respectively.
Specifically, the side of the secondary terminals of the second control transformer connects one end of the control unit of the second controlling switch KA2
With the 3rd output end, second controls the another of the control unit of the second controlling switch KA2 of opposite side connection of the secondary terminals of transformer
End and the 4th output end.
Specifically, the voltage that second voltage transformer is used on conversion line, the second control transformer is used for voltage change
The need for adapt to load, it is also used as being used every piezoelectric transformer, reduces the probability for getting an electric shock, it can be ensured that operating personnel and instrument
The safety of table, is additionally operable to prevent that the power supply of 220V is counter to be sent to 10kV, improves the security of power transformer power-supply device.
In one embodiment, standby voltage transformer power supply 130 also includes the 3rd high-tension fuse 132 and the 4th high pressure
One end connection line power supply of fuse 134, the 3rd high-tension fuse 132 and the 4th high-tension fuse 134, the 3rd high-voltage fuse
The other end of the high-tension fuse 134 of device 132 and the 4th connects the once end both sides of second voltage transformer.
Specifically, the 3rd high-tension fuse 132 and the 4th high-tension fuse 134 be used to protecting electrical equipment against overload and
The infringement of short circuit current, improves the security of power transformer power-supply device.
Above-mentioned voltage transformer power-supply device and its power supply prepared auto restart control device, principle are simple, occupy little space, and install
Easily, safeguard simple and reliable, the control requirement that prepared auto restart is cut can be met, can be changed on the basis of the using and the reserved
Make.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. the power supply prepared auto restart control device of a kind of voltage transformer power-supply device, it is characterised in that including the first controlling switch,
Second controlling switch, the 3rd controlling switch, the 4th controlling switch, the first output end and the second output end, the 3rd output end and
Four output ends, first controlling switch, second controlling switch, the 3rd controlling switch and the 4th controlling switch
Include control unit, the first contact and the second contact,
First output end and second output end connect the common voltage transformer of voltage transformer power-supply device respectively
The two ends of power supply, the 3rd output end and the 4th output end connect the standby of the voltage transformer power-supply device respectively
The two ends of voltage transformer power supply；The control unit of first controlling switch connects the two of the common voltage transformer power supply
End, the control unit of second controlling switch connects the two ends of the standby voltage transformer power supply；
First contact of first controlling switch, the first contact of second controlling switch and the 3rd controlling switch
Control unit series connection after one end connection external power source positive pole, the other end connection external power source negative pole；First controlling switch
One end connection after the control unit series connection of the second contact, the second contact of second controlling switch and the 4th controlling switch
External power source positive pole, other end connection external power source negative pole；
One end connection is described behind first contact of the 3rd controlling switch and the first contact shunt of the 4th controlling switch
First output end, the other end connects the 3rd output end；Second contact of the 3rd controlling switch and the 4th control
One end connects second output end after second contact shunt of switch, and the other end connects the 4th output end；
First contact of first controlling switch closes when the control unit of first controlling switch is powered, first control
The second contact for making switch disconnects in the control unit energization of first controlling switch；First contact of second controlling switch
Disconnected when the control unit of second controlling switch is powered, the second contact of second controlling switch is in the described second control
Closed when the control unit of switch is powered；First contact and the second contact of the 3rd controlling switch are in the 3rd controlling switch
Control unit close when being powered, the control of first contact and the second contact of the 4th controlling switch in the 4th controlling switch
Closed when portion processed is powered.
2. the power supply prepared auto restart control device of voltage transformer power-supply device according to claim 1, it is characterised in that institute
Stating the first controlling switch also includes the 3rd contact and the 4th contact, one end connection institute of the 3rd contact of first controlling switch
State one end of common voltage transformer power supply, other end connection first output of the 3rd contact of first controlling switch
End, one end of the 4th contact of first controlling switch connects the other end of the common voltage transformer power supply, and described the
The other end of the 4th contact of one controlling switch connects second output end.
3. the power supply prepared auto restart control device of voltage transformer power-supply device according to claim 1, it is characterised in that institute
Stating the second controlling switch also includes the 3rd contact and the 4th contact, one end connection institute of the 3rd contact of second controlling switch
State one end of standby voltage transformer power supply, other end connection the 3rd output of the 3rd contact of second controlling switch
End, one end of the 4th contact of second controlling switch connects the other end of the standby voltage transformer power supply, and described the
The other end of the 4th contact of two controlling switches connects the 4th output end.
4. the power supply prepared auto restart control device of voltage transformer power-supply device according to claim 1, it is characterised in that also
Including first fuse, second fuse and the 3rd fuse,
One end of the first fuse connects the positive pole of the external power source, the other end connection first of the first fuse
First contact of controlling switch and the second contact of second controlling switch；
One end of the second fuse connects the common voltage transformer power supply, and the other end connects first output end；
One end of 3rd fuse connects the standby voltage transformer power supply, and the other end connects the 3rd output end.
5. a kind of voltage transformer power-supply device, it is characterised in that including common voltage transformer power supply, standby voltage transformer
Power supply and the power supply prepared auto restart control device as described in claim 1-4 any one, the power supply prepared auto restart control device connect
Connect the common voltage transformer power supply and the standby voltage transformer power supply.
6. voltage transformer power-supply device according to claim 5, it is characterised in that the common voltage transformer power supply
Including first voltage transformer and the first control transformer, the once end connection line power supply of the first voltage transformer, institute
State the once end of secondary terminals connection the first control transformer of first voltage transformer, the two of the first control transformer
Secondary end is connected in parallel with the control unit of first controlling switch, and the secondary terminals both sides of the first control transformer connect respectively
First output end and second output end.
7. voltage transformer power-supply device according to claim 6, it is characterised in that the common voltage transformer power supply
Also include the first high-tension fuse and the second high-tension fuse, first high-tension fuse and second high-tension fuse
The other end of one end connection line power, first high-tension fuse and second high-tension fuse connects institute respectively
State the once end both sides of first voltage transformer.
8. voltage transformer power-supply device according to claim 6, it is characterised in that the common voltage transformer power supply
Including the 4th fuse, described 4th fuse one end connects the secondary terminals of the first voltage transformer, other end connection institute
State the once end of the first control transformer.
9. voltage transformer power-supply device according to claim 5, it is characterised in that the standby voltage transformer power supply
Including second voltage transformer and the second control transformer, the once end connection line power supply of the second voltage transformer, institute
State the once end of secondary terminals connection the second control transformer of second voltage transformer, the two of the second control transformer
Secondary end is connected in parallel with the control unit of second controlling switch, and the secondary terminals both sides of the second control transformer connect respectively
3rd output end and the 4th output end.
10. voltage transformer power-supply device according to claim 9, it is characterised in that the standby voltage transformer electricity
Source also includes the 3rd high-tension fuse and the 4th high-tension fuse, the 3rd high-tension fuse and the 4th high-tension fuse
One end connection line power supply, the other end connection described second of the 3rd high-tension fuse and the 4th high-tension fuse
The once end both sides of voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621352862.1U CN206250835U (en) | 2016-12-09 | 2016-12-09 | Voltage transformer power-supply device and its power supply prepared auto restart control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621352862.1U CN206250835U (en) | 2016-12-09 | 2016-12-09 | Voltage transformer power-supply device and its power supply prepared auto restart control device |
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| Publication Number | Publication Date |
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| CN206250835U true CN206250835U (en) | 2017-06-13 |
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| CN201621352862.1U Active CN206250835U (en) | 2016-12-09 | 2016-12-09 | Voltage transformer power-supply device and its power supply prepared auto restart control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404117A (en) * | 2017-09-25 | 2017-11-28 | 泰豪科技股份有限公司 | High-voltage board electric power supply control system and method |
-
2016
- 2016-12-09 CN CN201621352862.1U patent/CN206250835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404117A (en) * | 2017-09-25 | 2017-11-28 | 泰豪科技股份有限公司 | High-voltage board electric power supply control system and method |
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