CN205911947U - Power supply ware starts constant current circuit - Google Patents
Power supply ware starts constant current circuit Download PDFInfo
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- CN205911947U CN205911947U CN201620932663.1U CN201620932663U CN205911947U CN 205911947 U CN205911947 U CN 205911947U CN 201620932663 U CN201620932663 U CN 201620932663U CN 205911947 U CN205911947 U CN 205911947U
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- charger
- current circuit
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Abstract
The utility model discloses a power supply ware starts constant current circuit, including putting magnetron, resistance R17, transformer, rectifier, falling leakage resistance, relay, diode and resistance R16, the first port of putting the primary of magnetron's one end, resistance R17's one end, transformer all is connected with external power source's one end, it all is connected with external power source's the other end to fall the first contact of the one end of leakage resistance, the other end of putting magnetron and relay, the other end that falls second contact and the resistance R17 of the other end, the relay of leakage resistance all is connected with the primary's of transformer second port, the input of rectifier and the secondary coil of transformer connect, and the first output of rectifier and resistance R16's one end are connected. The utility model has the advantages of make power supply ware pick -up current reduce through falling the leakage resistance, can not lead to the electric brake tripping operation because power supply ware starting circuit's pick -up current is too big.
Description
Technical field
This utility model is related to charger start-up circuit, and more particularly, to charger starts constant-current circuit.
Background technology
Existing charger start-up circuit it may appear that the electric current of the moment of starting current is excessive, and is led when starting
The electric brake causing whole exterior power supply plant trips；Affect whole externally fed because the starting current of some charger is excessive
Other circuit of system cannot normal work.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide charger to start constant-current circuit, its
Starting current can be solved the problems, such as excessive and lead to electric brake to trip.
The purpose of this utility model employs the following technical solutions realization:
Charger starts constant-current circuit, including discharge tube fg1, resistance r17, transformator t3, commutator, fall leakage resistance, continues
Electrical equipment j1, diode d9 and resistance r16；
One end of discharge tube fg1, one end of resistance r17, the primary coil of transformator t3 first port all and external electrical
The one end in source connects；First contact of fall one end of leakage resistance, the other end of discharge tube fg1 and relay j1 is all and external power source
The other end connect；Fall leakage resistance the other end, second contact of relay j1 and resistance r17 the other end all with transformator
The second port of primary coil connects；The secondary coil of the input of commutator and transformator connects, the first output of commutator
One end of end and resistance r16 connects, the negative electrode of the other end of the resistance r16 and diode d9 first coil port all with relay
Connect；The anode of second coil port of relay j1 and diode d9 is all grounded.
Preferably, charger starts constant-current circuit also includes protective tube f1, one end of fall leakage resistance, discharge tube fg1
First contact of the other end and relay j1 is all connected with the other end of external power source by protective tube f1.
Preferably, charger starts constant-current circuit also includes electric capacity c2, one end of electric capacity c2 and the first of commutator defeated
Go out end to connect, the other end ground connection of electric capacity c2.
Preferably, described resistance r17 is varistor.
Preferably, charger starts constant-current circuit also including switching, the other end of one end of switch and protective tube f1 is even
Connect, first contact portion of the other end of switch and relay j1.
Preferably, charger starts constant-current circuit also includes display lamp, the other end of one end of display lamp and switch is even
Connect, the zero line side n of the other end of display lamp and three end input interfaces connects.
Preferably, described fall leakage resistance is critesistor.
Preferably, described critesistor includes the first critesistor r1 and the second critesistor r2, the first critesistor
One end connection, the other end of the first critesistor r1 and first contact of relay j1 of one end of r1 and the second critesistor r2
Connection, the other end of the second critesistor r2 and second contact portion of relay j1.
Compared to existing technology, the beneficial effects of the utility model are: so that charger starting current is dropped by dropping leakage resistance
Low, electric brake will not be led to trip because the starting current of charger start-up circuit is excessive.
Brief description
Fig. 1 is the circuit diagram that charger of the present utility model starts constant-current circuit.
Specific embodiment
Below, in conjunction with accompanying drawing and specific embodiment, this utility model is described further:
Charger starts constant-current circuit, is applied on charger, as shown in figure 1, including three end input interfaces, protective tube
F1, switch s1, display lamp l1, discharge tube fg1, varistor r17, transformator t3, diode d1, diode d2, diode d3,
Diode d5, electric capacity c2, fall leakage resistance, relay j1, diode d9 and resistance r16.
One end of display lamp l1, one end of discharge tube fg1, one end of varistor r17, the primary coil of transformator t3
First port is all connected with the zero line side n of three end input interfaces；Zero line l of three end input interfaces passes through protective tube f1 and switch
One end of s1 connects；The other end of switch s1, one end of fall leakage resistance, the other end of display lamp l1 and discharge tube fg1's is another
First contact portion all with relay j1 for the end；The other end of fall leakage resistance, second contact of relay j1 and varistor r17
The other end be all connected with the second port of the primary coil of transformator.
The first port of first secondary coil of transformator t3 connects external circuitses, first secondary coil of transformator t3
Second port is grounded, and first secondary coil of transformator t3 is powered for external circuitses；The negative electrode of diode d1 and diode d2's
Anode all connects in the first port of the second subprime coil of transformator t3, and the anode of the negative electrode of diode d3 and diode d5 is equal
Second port in the second subprime coil of transformator t3 connects, the negative electrode of diode d2, the negative electrode of diode d5 and electric capacity c2
One end be all connected with one end of resistance r16, the negative electrode of the other end of resistance r16 and diode d9 all with relay j1 first
Coil port connects.
The ground terminal of three end input interfaces, second coil port of relay j1, the anode of diode d9, the sun of diode d1
The other end of pole, the anode of diode d3 and electric capacity c2 is all grounded.
Described fall leakage resistance is critesistor, it preferably includes the first critesistor r1 and the second critesistor r2, first
One end connection of one end of critesistor r1 and the second critesistor r2, the other end of the first critesistor r1 and relay j1's
First contact portion, the other end of the second critesistor r2 and second contact portion of relay j1.
The operation principle that this charger starts constant-current circuit is: during circuit start work, switch s1 is in closure, relay
It is in disconnection, three sections of input interfaces connect external power source, and critesistor is in charger between first contact of j1 and the second contact
Start the relatively low startup electricity that there is certain resistance so that charger starts constant-current circuit of initial instant temperature that constant-current circuit starts
Stream reduces；Input voltage is carried out transformation, the first secondary coil output first voltage, second subprime coil output second by transformator
Voltage is powered for relay j1 by rectifier bridge, after relay j1 powers, the of first contact of relay j1 and relay j1
So that critesistor is short-circuit, the electric current that charger starts on constant-current circuit recovers normal to two closings of contact, the normal work of charger
Make.
This useful application, in the front end of charger, when charger connects external power source, carries out fall stream to starting current,
Make charger start-up circuit that electric brake will not be made to trip because the moment of starting current is excessive.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various
Corresponding change and deformation, and all these change and deformation all should belong to the protection of this utility model claim
Within the scope of.
Claims (8)
1. charger starts constant-current circuit it is characterised in that including discharge tube fg1, resistance r17, transformator t3, commutator, fall
Leakage resistance, relay j1, diode d9 and resistance r16；
One end of discharge tube fg1, one end of resistance r17, the primary coil of transformator t3 first port all with external power source
One end connects；First contact of one end, the other end of discharge tube fg1 and relay j1 of fall leakage resistance is all another with external power source
One end connects；The primary all with transformator for the other end of the other end, second contact of relay j1 and resistance r17 of fall leakage resistance
The second port of coil connects；The secondary coil of the input of commutator and transformator connects, the first outfan of commutator and
One end of resistance r16 connects, and the negative electrode of the other end of resistance r16 and diode d9 is all connected with the first coil port of relay
Connect；The anode of second coil port of relay j1 and diode d9 is all grounded.
2. charger as claimed in claim 1 starts constant-current circuit it is characterised in that also including protective tube f1, drops leakage resistance
One end, the other end of discharge tube fg1 and relay j1 the first contact all by the other end of protective tube f1 and external power source
Connect.
3. charger as claimed in claim 1 starts constant-current circuit it is characterised in that also including electric capacity c2, and the one of electric capacity c2
First outfan of end and commutator connects, the other end ground connection of electric capacity c2.
4. charger as claimed in claim 1 starts constant-current circuit it is characterised in that described resistance r17 is varistor.
5. charger as claimed in claim 1 starts constant-current circuit it is characterised in that also including switching, one end of switch and
The other end of protective tube f1 connects, first contact portion of the other end of switch and relay j1.
6. charger as claimed in claim 5 starts constant-current circuit it is characterised in that also including display lamp, and the one of display lamp
The other end of end and switch connects, and the zero line side n of the other end of display lamp and three end input interfaces connects.
7. charger as claimed in claim 1 starts constant-current circuit it is characterised in that described fall leakage resistance is critesistor.
8. charger as claimed in claim 7 starts constant-current circuit it is characterised in that described critesistor includes the first temperature-sensitive
Resistance r1 and the second critesistor r2, one end of one end of the first critesistor r1 and the second critesistor r2 connects, the first heat
The of the other end of quick resistance r1 and first contact portion of relay j1, the other end of the second critesistor r2 and relay j1
Two contact portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932663.1U CN205911947U (en) | 2016-08-24 | 2016-08-24 | Power supply ware starts constant current circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932663.1U CN205911947U (en) | 2016-08-24 | 2016-08-24 | Power supply ware starts constant current circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205911947U true CN205911947U (en) | 2017-01-25 |
Family
ID=57801665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620932663.1U Active CN205911947U (en) | 2016-08-24 | 2016-08-24 | Power supply ware starts constant current circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205911947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505788A (en) * | 2023-06-02 | 2023-07-28 | 广东泰琪丰电子有限公司 | Inverter, energy storage inversion system, control method, equipment and storage medium |
-
2016
- 2016-08-24 CN CN201620932663.1U patent/CN205911947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505788A (en) * | 2023-06-02 | 2023-07-28 | 广东泰琪丰电子有限公司 | Inverter, energy storage inversion system, control method, equipment and storage medium |
| CN116505788B (en) * | 2023-06-02 | 2024-07-16 | 广东泰琪丰电子有限公司 | Inverter, energy storage inversion system, control method, equipment and storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |