CN108808662A - A kind of fixation dual output power supply of automatic identification input voltage - Google Patents
A kind of fixation dual output power supply of automatic identification input voltage Download PDFInfo
- Publication number
- CN108808662A CN108808662A CN201810600948.9A CN201810600948A CN108808662A CN 108808662 A CN108808662 A CN 108808662A CN 201810600948 A CN201810600948 A CN 201810600948A CN 108808662 A CN108808662 A CN 108808662A
- Authority
- CN
- China
- Prior art keywords
- contactor
- relay
- terminal
- coils
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009977 dual effect Effects 0.000 title claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims 1
- 230000001052 transient effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H02J3/005—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a kind of fixation dual output power supplys of automatic identification input voltage, including main circuit and control circuit, the main circuit includes input power, circuit breaker Q A0, the break contact of A.C. contactor QA1, output channel unit I and output channel unit II；One end of circuit breaker Q A0 and the ends L of input power connect, and the break contact of the other end and A.C. contactor QA1 of circuit breaker Q A0 is connected in series with, and output channel unit I and output channel unit II are connect with the break contact of A.C. contactor QA1 respectively；The input terminal of control circuit is connected at the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts, and the output end of control circuit is connected on the N-terminal of input power.The device is single-input double-output structure, can automatic identification input power be 110 V or 220V；And relay coil is not subject to transient high voltage；It automaticallys cut off the power and warns when the moving together contact adhesion of A.C. contactor QA2, indicator light warns when the break contact adhesion of A.C. contactor QA2.
Description
Technical field
The invention belongs to power technique fields, specifically design a kind of fixation dual output power supply of automatic identification input voltage.
Background technology
The household electricity voltage standard of world's country variant simultaneously differs, and most countries line voltage is 220 V, but
The national line voltage having is 110 V and 220V, and there have been the rated voltage of domestic and international household electrical appliance and supply voltages in this way
Unmatched problem.Currently, 220V voltages, it is defeated can be converted to 110 V by the power supply voltage converter occurred on the market
Go out, or 110V voltages are converted into 220 V outputs on the contrary.But present power supply voltage converter is nearly all that single input list is defeated
Go out, if wrong input power, electric appliance or even harmful to human may be damaged, moreover, electric appliance can not use simultaneously both at home and abroad, nothing
Method identifies input supply voltage, can not ensure no matter input voltage is 220 V or 110V, and output voltage is fixed as side 220
V, the other side are 110 V.The problems such as these features of existing electric pressure converter will certainly cause safety not high, inconvenient.
Invention content
Above-mentioned electric pressure converter security performance is high, the technical problems such as inconvenient for use to solve, a kind of automatic to provide
Identify input voltage fixation dual output power supply, the present invention can be automatically selected according to the difference of input voltage from transformer which
Side input makes output voltage be fixed as 110 V and 220 V, and can be in the moving together contact adhesion situation of A.C. contactor QA2
When automatically cut off the power and warn, the automatic warning in the break contact adhesion situation of A.C. contactor QA2.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：A kind of automatic identification input voltage
Fixed dual output power supply, including main circuit and control circuit, the main circuit include input power, circuit breaker Q A0, ac contactor
Break contact, output channel unit I and the output channel unit II of device QA1；One end of circuit breaker Q A0 and the ends L of input power
Connection, the break contact of the other end and A.C. contactor QA1 of circuit breaker Q A0 are connected in series with, and output channel unit I and output are logical
Road unit II is connect with the break contact of A.C. contactor QA1 respectively；The input terminal of control circuit is connected to circuit breaker Q A0 and friendship
At the tie point for flowing contactor QA1 break contacts, the output end of control circuit is connected on the N-terminal of input power.
The output channel unit I, including the moving together contact of A.C. contactor QA2, fuse FA1, fuse FA2, change
Depressor TA, output port I and output port II.
One end of the moving together contact of A.C. contactor QA2 is connect with the break contact of A.C. contactor QA1, A.C. contactor
The other end of the moving together contact of QA2 is divided into two-way, is connected in series with one end of the sides U1 with transformer TA afterwards with fuse FA1 all the way
Connection, another way are connect with the ends L1 of output port I；The other end of the sides U1 of transformer TA and the N-terminal of input power connect, defeated
The N-terminal for entering power supply is connect with the N-terminal of output port I；The ends L1, N-terminal, the ends XE of output port I constitute 110V output ports.
One end of the sides U2 of transformer TA is connect after fuse FA2 with the ends L2 of output port II, the U2 of transformer TA
The other end of side and the N-terminal of input power connect, and the N-terminal of input power is connected with the N-terminal of output port II；Output port II
The ends L2, N-terminal, the ends XE constitute 220V output ports.
The output channel unit II, including the break contact of A.C. contactor QA2, fuse FA1, fuse FA2, change
Depressor TA, output port I and output port II.
One end of the break contact of A.C. contactor QA2 is connect with the break contact of A.C. contactor QA1, A.C. contactor
The other end of the break contact of QA2 is divided into two-way, is connected in series with one end of the sides U2 with transformer TA afterwards with fuse FA2 all the way
Connection, another way are connect with the ends L2 of output port II；The other end of the sides U2 of transformer TA and the N-terminal of input power connect,
The N-terminal of input power is connected with the N-terminal of output port II, and the ends L2, N-terminal, the ends XE of output port II constitute 220V output ports.
One end of the sides U1 of transformer TA is connect after fuse FA1 with the ends L1 of output port I, the sides U1 of transformer TA
The other end and the N-terminal of input power connect, the N-terminal of input power is connected with the N-terminal of output port I, the L1 of output port I
End, N-terminal, the ends XE constitute 110V output ports.
The rated voltage of the sides U2 of transformer TA is 220V, the rated voltage 110V of the sides U1；Relay KF1 coils with exchange
The rated voltage of contactor QA1 coils is 220 V, and the rated voltage of relay KF2 coils and A.C. contactor QA2 coils is equal
Rated voltage for 110 V, indicator light PG1 and indicator light PG2 is 220 V；The specified electricity of indicator light PG3 and indicator light PG4
Pressure is 110 V.
The control circuit, including the first control unit and the second control unit, first control unit, including relay
Device KF1 break contacts, button SF1, A.C. contactor QA2 coils, relay KF2 coils, relay KF2 moving together contact, exchange
Contactor QA2 break contacts, indicator light PG3, indicator light PG4.
One end of relay KF1 break contacts is connected to the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts
Place, the other end and the button SF1 and relay KF2 coils of relay KF1 break contacts are sequentially connected in series, relay KF2 lines
The other end of circle is connected to the N-terminal of input power；Relay KF2 moving together contact is connected in parallel with button SF1, A.C. contactor
QA2 coils and indicator light PG3 respectively with relay KF2 parallel connection of coils；A.C. contactor QA2 break contacts and indicator light
PG4 is connected in parallel on after being connected in series on relay KF2 coils.
Second control unit, including relay KF1 coils, A.C. contactor QA1 coils, relay KF2 dynamic circuit breakers are touched
Point, relay KF1 moving together contact, A.C. contactor QA2 moving together contact, indicator light PG1, indicator light PG2.
One end of relay KF2 break contacts is connected to the break contact tie point of circuit breaker Q A0 and A.C. contactor QA1
Place, the other end and the relay KF1 coils of relay KF2 break contacts are connected in series with, the other end connection of relay KF1 coils
In the N-terminal of input power；One end of relay KF1 moving together contact is connected to circuit breaker Q A0 and A.C. contactor QA1 break contacts
Tie point at, the other end of relay KF1 moving together contact and A.C. contactor QA2 moving together contact and A.C. contactor QA1 lines
Circle is sequentially connected in series, and the other end of A.C. contactor QA1 coils is connected to the N-terminal of input power；Indicator light PG1 connects with exchanging
Tentaculum QA1 parallel connection of coils, indicator light PG2 and the A.C. contactor QA2 moving together contact being connected in series with and A.C. contactor QA1
Coil is in parallel.
The present invention is only to be made of devices such as some cheap low-voltage electrical control element, transformer, indicator lights
Fixed dual output power supply, this dual output power supply have following advantage：Single-input double-output；It can be with automatic identification input power electricity
Pressure is 110 V or 220V；It is inputted from transformer which side no matter can be automatically selected according to supply voltage to ensure input
Supply voltage is 220 V or 110 V, two outlet side voltage is fixed to 110 V and 220 V；Relay coil is not
It can bear transient high voltage；It automaticallys cut off the power and warns when the moving together contact adhesion of A.C. contactor QA2, work as ac contactor
Indicator light warns when the break contact adhesion of device QA2.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the circuit diagram of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of fixation dual output power supply of automatic identification input voltage, including main circuit and control circuit,
The main circuit includes input power, circuit breaker Q A0, the break contact of A.C. contactor QA1, output channel unit I and output
Path unit II；One end of circuit breaker Q A0 and the ends L of input power connect, the other end and A.C. contactor of circuit breaker Q A0
The break contact of QA1 is connected in series with, output channel unit I and output channel the unit II dynamic circuit breaker with A.C. contactor QA1 respectively
Contact portion；The input terminal of control circuit is connected at the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts, control
The output end of circuit processed is connected on the N-terminal of input power.
Specifically, the output channel unit I, including the moving together contact of A.C. contactor QA2, fuse FA1, fuse
FA2, transformer TA, output port I and output port II.
One end of the moving together contact of A.C. contactor QA2 is connect with the break contact of A.C. contactor QA1, A.C. contactor
The other end of the moving together contact of QA2 is divided into two-way, is connected in series with one end of the sides U1 with transformer TA afterwards with fuse FA1 all the way
Connection, another way are connect with the ends L1 of output port I；The other end of the sides U1 of transformer TA and the N-terminal of input power connect, defeated
The N-terminal for entering power supply is connect with the N-terminal of output port I；The ends L1, N-terminal, the ends XE of output port I constitute 110V output ports.
One end of the sides U2 of transformer TA is connect after fuse FA2 with the ends L2 of output port II, the U2 of transformer TA
The other end of side and the N-terminal of input power connect, and the N-terminal of input power is connected with the N-terminal of output port II；Output port II
The ends L2, N-terminal, the ends XE constitute 220V output ports.
The output channel unit II, including the break contact of A.C. contactor QA2, fuse FA1, fuse FA2, change
Depressor TA, output port I and output port II.
One end of the break contact of A.C. contactor QA2 is connect with the break contact of A.C. contactor QA1, A.C. contactor
The other end of the break contact of QA2 is divided into two-way, is connected in series with one end of the sides U2 with transformer TA afterwards with fuse FA2 all the way
Connection, another way are connect with the ends L2 of output port II；The other end of the sides U2 of transformer TA and the N-terminal of input power connect,
The N-terminal of input power is connected with the N-terminal of output port II, and the ends L2, N-terminal, the ends XE of output port II constitute 220V output ports.
One end of the sides U1 of transformer TA is connect after fuse FA1 with the ends L1 of output port I, the sides U1 of transformer TA
The other end and the N-terminal of input power connect, the N-terminal of input power is connected with the N-terminal of output port I, the L1 of output port I
End, N-terminal, the ends XE constitute 110V output ports.
The control circuit, including the first control unit and the second control unit, first control unit, including relay
Device KF1 break contacts, button SF1, A.C. contactor QA2 coils, relay KF2 coils, relay KF2 moving together contact, exchange
Contactor QA2 break contacts, indicator light PG3, indicator light PG4.
One end of relay KF1 break contacts is connected to the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts
Place, the other end and the button SF1 and relay KF2 coils of relay KF1 break contacts are sequentially connected in series, relay KF2 lines
The other end of circle is connected to the N-terminal of input power；Relay KF2 moving together contact is connected in parallel with button SF1, A.C. contactor
QA2 coils and indicator light PG3 respectively with relay KF2 parallel connection of coils；A.C. contactor QA2 break contacts and indicator light
PG4 is connected in parallel on after being connected in series on relay KF2 coils.
Second control unit, including relay KF1 coils, A.C. contactor QA1 coils, relay KF2 break contacts, after
Electric appliance KF1 moving together contact, A.C. contactor QA2 moving together contact, indicator light PG1, indicator light PG2.
One end of relay KF2 break contacts is connected to the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts
Place, the other end and the relay KF1 coils of relay KF2 break contacts are connected in series with, the other end connection of relay KF1 coils
In the N-terminal of input power；One end of relay KF1 moving together contact is connected to circuit breaker Q A0 and A.C. contactor QA1 break contacts
Tie point at, the other end of relay KF1 moving together contact and A.C. contactor QA2 moving together contact and A.C. contactor QA1 lines
Circle is sequentially connected in series, and the other end of A.C. contactor QA1 coils is connected to the N-terminal of input power；Indicator light PG1 connects with exchanging
Tentaculum QA1 parallel connection of coils, indicator light PG2 and the A.C. contactor QA2 moving together contact being connected in series with and A.C. contactor QA1
Coil is in parallel.
In the present invention, the rated voltage of the sides U2 of transformer TA is 220V, the rated voltage 110V of the sides U1；Relay
The rated voltage of KF1 coils and A.C. contactor QA1 coils is 220 V, relay KF2 coils and A.C. contactor QA2 lines
The rated voltage that the rated voltage of circle is 110 V, indicator light PG1 and indicator light PG2 is 220 V；Indicator light PG3 and instruction
The rated voltage of lamp PG4 is 110 V.
Application method is：
After circuit breaker Q A0 is closed, then by lower button SF1 it can be obtained the voltage that two output ends are respectively 220 V and 110 V.Electricity
Road specific work process is as follows：
When L, N point-to-point transmission voltage are 220 V, i.e., when input supply voltage is 220 V：
Relay KF1 coils obtain electric, and moving together contact KF1 is closed, and indicator light PG2 energizations are lighted, and break contact KF1 is disconnected, at this point,
Even if pressing lower button SF1, relay KF2 coils, A.C. contactor QA2 coils and indicator light PG3, PG4 must not be electric, and 220V is defeated
Enter supply voltage to input from the sides U2 of transformer TA, the sides U2 voltage, the sides the U1 voltage of transformer TA are fixed to 220V, 110
V。
When L, N point-to-point transmission voltage are 110 V, i.e., input supply voltage is 110 V：
Relay KF2 coils obtain electric, and break contact KF2 is disconnected, relay KF1 coils must not electricity, moving together contact KF2 is closed；
Indicator light PG3 is lighted；A.C. contactor QA2 coils obtain electric, and the break contact QA2 in control circuit is disconnected, and is connected in main electricity
Break contact QA2 in road is disconnected and moving together contact QA2 is closed, and 110 V input supply voltages are inputted from the sides U1 of transformer TA,
The sides U2 voltage, the sides the U1 voltage of transformer TA is fixed to 220V, 110V.
When L, N point-to-point transmission voltage are for 220V and when the moving together contact adhesion of A.C. contactor QA2, indicator light PG1 warnings,
And A.C. contactor QA1 coils obtain electric, and a break contact QA1 for being connected in the A.C. contactor QA1 in main circuit is disconnected, from
Dynamic cut-out input power, prevent transformer because bear 440 V high voltages due to burn out.
When L, N point-to-point transmission voltage are for 110V and when the break contact adhesion of A.C. contactor QA2, indicator light PG4 warnings,
The sides the U2 voltage of transformer TA is 110V, and the sides U1 voltage is 55V, and the both sides voltage of transformer TA is in rated voltage hereinafter, place
In in safe range, without automatically cutting off input power.
Described above is only presently preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of fixation dual output power supply of automatic identification input voltage, it is characterised in that：Including main circuit and control circuit, institute
It includes that input power, circuit breaker Q A0, the break contact of A.C. contactor QA1, output channel unit I and output are logical to state main circuit
Road unit II；One end of circuit breaker Q A0 and the ends L of input power connect, the other end and the A.C. contactor QA1 of circuit breaker Q A0
Break contact be connected in series with, output channel unit I and output channel the unit II break contact with A.C. contactor QA1 respectively
Connection；The input terminal of control circuit is connected at the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts, control electricity
The output end on road is connected on the N-terminal of input power.
2. the fixation dual output power supply of automatic identification input voltage according to claim 1, it is characterised in that：The output
Path unit I, including the moving together contact of A.C. contactor QA2, fuse FA1, fuse FA2, transformer TA, output port I
With output port II；
One end of the moving together contact of A.C. contactor QA2 is connect with the break contact of A.C. contactor QA1, A.C. contactor QA2
The other end of moving together contact be divided into two-way, the one end for being connected in series with the sides U1 with transformer TA afterwards with fuse FA1 all the way connects
It connects, another way is connect with the ends L1 of output port I；The other end of the sides U1 of transformer TA and the N-terminal of input power connect, input
The N-terminal of power supply is connect with the N-terminal of output port I；The ends L1, N-terminal, the ends XE of output port I constitute 110V output ports；
One end of the sides U2 of transformer TA is connect after fuse FA2 with the ends L2 of output port II, the sides U2 of transformer TA
The N-terminal of the other end and input power connects, and the N-terminal of input power is connected with the N-terminal of output port II；The L2 of output port II
End, N-terminal, the ends XE constitute 220V output ports.
3. the fixation dual output power supply of automatic identification input voltage according to claim 1, it is characterised in that：The output
Path unit II, including the break contact of A.C. contactor QA2, fuse FA1, fuse FA2, transformer TA, output port I
With output port II；
One end of the break contact of A.C. contactor QA2 is connect with the break contact of A.C. contactor QA1, A.C. contactor QA2
The other end of break contact be divided into two-way, the one end for being connected in series with the sides U2 with transformer TA afterwards with fuse FA2 all the way connects
It connects, another way is connect with the ends L2 of output port II；The other end of the sides U2 of transformer TA and the N-terminal of input power connect, defeated
The N-terminal for entering power supply is connected with the N-terminal of output port II, and the ends L2, N-terminal, the ends XE of output port II constitute 220V output ports；
One end of the sides U1 of transformer TA is connect after fuse FA1 with the ends L1 of output port I, the sides U1 of transformer TA it is another
The N-terminal of one end and input power connects, and the N-terminal of input power is connected with the N-terminal of output port I, the ends L1 of output port I, N
End, the ends XE constitute 110V output ports.
4. the fixation dual output power supply of automatic identification input voltage according to claim 2 or 3, it is characterised in that：Transformation
The rated voltage of the sides U2 of device TA is 220V, the rated voltage 110V of the sides U1；Relay KF1 coils and A.C. contactor QA1 lines
The rated voltage of circle is 220 V, and the rated voltage of relay KF2 coils and A.C. contactor QA2 coils is 110 V, is referred to
Show that the rated voltage of lamp PG1 and indicator light PG2 is 220 V；The rated voltage of indicator light PG3 and indicator light PG4 are 110
V。
5. the fixation dual output power supply of automatic identification input voltage according to claim 1, it is characterised in that：The control
Circuit, including the first control unit and the second control unit, first control unit, including relay KF1 break contacts, press
Button SF1, A.C. contactor QA2 coils, relay KF2 coils, relay KF2 moving together contact, A.C. contactor QA2 dynamic circuit breakers are touched
Point, indicator light PG3, indicator light PG4；
One end of relay KF1 break contacts is connected at the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts,
The other end of relay KF1 break contacts is sequentially connected in series with button SF1 and relay KF2 coils, relay KF2 coils
The other end is connected to the N-terminal of input power；Relay KF2 moving together contact is connected in parallel with button SF1, A.C. contactor QA2 lines
Circle and indicator light PG3 respectively with relay KF2 parallel connection of coils；A.C. contactor QA2 break contacts and indicator light PG4 series connection
It is connected in parallel on after connection on relay KF2 coils；
Second control unit, including relay KF1 coils, A.C. contactor QA1 coils, relay KF2 break contacts, after
Electric appliance KF1 moving together contact, A.C. contactor QA2 moving together contact, indicator light PG1, indicator light PG2；
One end of relay KF2 break contacts is connected at the tie point of circuit breaker Q A0 and A.C. contactor QA1 break contacts,
The other end of relay KF2 break contacts is connected in series with relay KF1 coils, and the other end of relay KF1 coils is connected to
The N-terminal of input power；One end of relay KF1 moving together contact is connected to circuit breaker Q A0 and A.C. contactor QA1 break contacts
At tie point, the other end and A.C. contactor QA2 moving together contact and the A.C. contactor QA1 coils of relay KF1 moving together contact
It is sequentially connected in series, the other end of A.C. contactor QA1 coils is connected to the N-terminal of input power；Indicator light PG1 and ac contactor
Device QA1 parallel connection of coils, indicator light PG2 and the A.C. contactor QA2 moving together contact being connected in series with and A.C. contactor QA1 lines
Circle is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600948.9A CN108808662B (en) | 2018-06-12 | 2018-06-12 | Fixed dual-output power supply capable of automatically identifying input voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600948.9A CN108808662B (en) | 2018-06-12 | 2018-06-12 | Fixed dual-output power supply capable of automatically identifying input voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108808662A true CN108808662A (en) | 2018-11-13 |
| CN108808662B CN108808662B (en) | 2020-09-04 |
Family
ID=64085331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810600948.9A Active CN108808662B (en) | 2018-06-12 | 2018-06-12 | Fixed dual-output power supply capable of automatically identifying input voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108808662B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656786U (en) * | 2010-03-11 | 2010-11-24 | 天水庆华电子科技有限公司 | 110V/220V dual-purpose power supply device |
| CN102545349A (en) * | 2011-09-29 | 2012-07-04 | 郭振华 | Circuit of nonpolar safety charger |
| CN102545350A (en) * | 2011-09-29 | 2012-07-04 | 郭振华 | Circuit of nonpolar safety charger |
| CN102545348A (en) * | 2011-09-29 | 2012-07-04 | 郭振华 | Zero-standby power consumption non-polarized safety charger circuit |
| CN102638069A (en) * | 2011-09-29 | 2012-08-15 | 郭振华 | Non-polar safe charger circuit |
| CN102751695A (en) * | 2012-07-20 | 2012-10-24 | 天津百利机电控股集团有限公司研究院 | Alarming protection device and alarming protection method for alternating-current contactor main contact adhesion |
| KR20130039817A (en) * | 2011-10-13 | 2013-04-23 | 에스케이이노베이션 주식회사 | Circuit for monitoring relay |
| CN205693392U (en) * | 2016-06-03 | 2016-11-16 | 淮安信息职业技术学院 | Automatically the charger circuit of accumulator polarity is identified |
| CN205880149U (en) * | 2016-06-08 | 2017-01-11 | 武汉合康智能电气有限公司 | Well power relay contact adhesion detection circuitry |
-
2018
- 2018-06-12 CN CN201810600948.9A patent/CN108808662B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656786U (en) * | 2010-03-11 | 2010-11-24 | 天水庆华电子科技有限公司 | 110V/220V dual-purpose power supply device |
| CN102545349A (en) * | 2011-09-29 | 2012-07-04 | 郭振华 | Circuit of nonpolar safety charger |
| CN102545350A (en) * | 2011-09-29 | 2012-07-04 | 郭振华 | Circuit of nonpolar safety charger |
| CN102545348A (en) * | 2011-09-29 | 2012-07-04 | 郭振华 | Zero-standby power consumption non-polarized safety charger circuit |
| CN102638069A (en) * | 2011-09-29 | 2012-08-15 | 郭振华 | Non-polar safe charger circuit |
| KR20130039817A (en) * | 2011-10-13 | 2013-04-23 | 에스케이이노베이션 주식회사 | Circuit for monitoring relay |
| CN102751695A (en) * | 2012-07-20 | 2012-10-24 | 天津百利机电控股集团有限公司研究院 | Alarming protection device and alarming protection method for alternating-current contactor main contact adhesion |
| CN205693392U (en) * | 2016-06-03 | 2016-11-16 | 淮安信息职业技术学院 | Automatically the charger circuit of accumulator polarity is identified |
| CN205880149U (en) * | 2016-06-08 | 2017-01-11 | 武汉合康智能电气有限公司 | Well power relay contact adhesion detection circuitry |
Non-Patent Citations (1)
| Title |
|---|
| 路静等: "一种基于智能识别的小功率无线充电***设计", 《集成电路应用》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108808662B (en) | 2020-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202424117U (en) | Three-phase default phase detection and automatic protection circuit | |
| CN106291141B (en) | Automatic phase sequence identification device for three-phase power supply on construction site | |
| CN211063344U (en) | Automatic interlocking control system of two incoming line cabinets and one bus-bar cabinet | |
| CN108444070A (en) | Include the three phase mains charging circuit and air conditioner of anti-wrong line circuit | |
| CN108808662A (en) | A kind of fixation dual output power supply of automatic identification input voltage | |
| CN203851337U (en) | Contactless single fire line double controlled touch switch circuit | |
| CN106253066B (en) | A kind of dc switch station | |
| CN207454231U (en) | A kind of control device of double water pump | |
| CN207265638U (en) | A kind of automatically controlled protection switch of three-phase and four-line all direction multifunctional accident | |
| CN101359030A (en) | Earthing discrimination, monitor and alarm unit for electrical power system in substation | |
| CN202067737U (en) | Failure indication circuit breaker | |
| CN206727880U (en) | A kind of DC DC converters of adaptive line voltage | |
| CN204425202U (en) | A kind of Multifunctional argon arc welding machine duplicate supply with protective circuit | |
| CN208704107U (en) | Three phase mains charging circuit and air conditioner comprising anti-wrong line circuit | |
| CN203337814U (en) | Electric energy meter wiring device | |
| CN201910610U (en) | Protective device for preventing zero wire from being broken to cause abnormal voltage to burn down power supply and utilization equipment | |
| CN201541113U (en) | Controller capable of automatic electricity restriction | |
| CN104601018A (en) | Double power supply with protecting circuit for multifunctional argon arc welding machine | |
| CN206819964U (en) | A kind of instruction device of fuse switch | |
| CN205810611U (en) | A kind of appliance switch assembly of the band lamplight pointing of energy-saving refrigerator | |
| CN213846238U (en) | Low-power-consumption positive phase sequence output power supply | |
| CN212622937U (en) | Control circuit for testing external circuit breaker of electric energy meter | |
| CN104600673A (en) | Under-voltage protection circuit and lamp | |
| CN212379491U (en) | Circuit structure of analog circuit breaker | |
| CN102208797B (en) | Novel protection circuit with electric leakage detection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 451191 No. 1 Huaihe Road, Shuang Hu Economic and Technological Development Zone, Xinzheng, Zhengzhou, Henan Applicant after: Zhongyuan University of Technology Address before: 451191 No. 1 Huaihe Road, Shuanghu Town Economic and Technological Development Zone, Zhengzhou City, Henan Province Applicant before: Zhongyuan University of Technology |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |