CN207368650U - A kind of surge current suppression circuit - Google Patents
A kind of surge current suppression circuit Download PDFInfo
- Publication number
- CN207368650U CN207368650U CN201721496162.4U CN201721496162U CN207368650U CN 207368650 U CN207368650 U CN 207368650U CN 201721496162 U CN201721496162 U CN 201721496162U CN 207368650 U CN207368650 U CN 207368650U
- Authority
- CN
- China
- Prior art keywords
- module
- diode
- transformer
- capacitance
- surge current
- 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.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of surge current suppression circuit, including current limliting module, Time-delayed trigger module, rectification module, filter module, transformer and metal-oxide-semiconductor, after electric main input, the surge current of its input generation at initial stage is limited by current limliting module, and charge after rectification module carries out rectification to the filter module, after the filter module charging complete, the conducting and closing of metal-oxide-semiconductor are controlled by external drive signal, after electric energy carries out energy conversion process via transformer, by the vice-side winding powering load of transformer, at the same time after load starts, the primary side auxiliary winding of transformer produces induced voltage and gives Time-delayed trigger module for power supply, make the Time-delayed trigger module conducting and the short circuit current limliting module.The utility model can limit the surge current for powering on generation at initial stage, and so as to avoid the added power dissipation come to Power supply belt, current limliting module short circuit has been saved cost after loaded work piece.
Description
Technical field
Electronic technology field is the utility model is related to, more particularly to a kind of surge current suppression circuit.
Background technology
In order to suppress interference signal, filter capacitor can be all used in current various electronic circuits, due to large capacity filtered electrical
The presence of appearance, at the initial stage that powers on, capacitance can regard short-circuit condition as in charging transient, and great surge electricity can be produced in input circuit
Stream, very big impact is caused to power supply and power circuit, causes the unstable of electronic circuit, reduces the reliability of circuit,
When serious, or even burning for wiring board or electronic component can be caused, it is therefore necessary to increase surge current suppression in electronic circuit
Circuit processed.
The way of limit inrush currents is typically that resistance or NTC are sealed in major loop at present（Negative temperature coefficient thermistor power
Hinder device）To limit the surge current for powering on generation at initial stage, since the resistance or NTC resistance values that seal in are smaller, limit inrush currents
Ability is poor, and due to the presence of resistance or NTC, product is generated extra loss, reduce the efficiency of product.
Thus the prior art could be improved and improve.
Utility model content
In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Inrush current restraining electricity
Road, not only with it is stronger limitation power on initial stage generation surge current ability, but also avoid load stabilization work after, by
Carry out added power dissipation to Power supply belt in increase resistance or thermistor.
In order to achieve the above object, the utility model takes following technical scheme：
A kind of surge current suppression circuit, connects with load, including current limliting module, Time-delayed trigger module, rectification module, filter
Ripple module, transformer and metal-oxide-semiconductor, it is defeated that the transformer includes primary side main winding, primary side auxiliary winding and vice-side winding, electric main
After entering, the surge current of its input generation at initial stage is limited by current limliting module, and the filter is given after rectification module carries out rectification
Ripple module charges, and after the filter module charging complete, the conducting and closing of metal-oxide-semiconductor, electricity are controlled by external drive signal
After energy conversion process being carried out via transformer, by the vice-side winding powering load of transformer, while after load starts,
The primary side auxiliary winding of transformer produces induced voltage and gives Time-delayed trigger module for power supply, makes the Time-delayed trigger module conducting and short circuit
The current limliting module.
In the surge current suppression circuit, the current limliting module includes first resistor, one end of the first resistor
Connect the firewire and Time-delayed trigger module of electric main, the other end connection Time-delayed trigger module and rectification mould of the first resistor
Block.
In the surge current suppression circuit, the Time-delayed trigger module includes second resistance, 3rd resistor, the first electricity
Appearance, the second capacitance, the first diode and bidirectional triode thyristor, one end of one end connection first resistor of the 3rd resistor, exchange
The firewire of alternating current and the first main electrode of bidirectional triode thyristor, the other end of the 3rd resistor connect one end of the first capacitance, institute
State the first capacitance the other end connection the second main electrode of bidirectional triode thyristor, one end of the second capacitance, first resistor the other end,
One end of the primary side auxiliary winding of rectification module and transformer, one end of the control terminal connection second resistance of the bidirectional triode thyristor,
The other end of the other end of the second resistance and the second capacitance is all connected with the anode of the first diode, first diode
The other end of the primary side auxiliary winding of cathode connection transformer.
In the surge current suppression circuit, the rectification module includes the second diode, the 3rd diode, the four or two
Pole pipe and the 5th diode, the cathode of second diode connect the other end of the first resistor, the second capacitance one end,
One end of the primary side auxiliary winding of the other end of first capacitance, the anode of the 4th diode and transformer, second diode
Anode connects one end of the primary side main winding of the anode of the 3rd diode, filter module and transformer, the primary side main winding
The other end connects the drain electrode of metal-oxide-semiconductor, the anode of cathode the 5th diode of connection of the 3rd diode and the zero of electric main
Line, cathode connection filter module, the cathode of the 4th diode and the source electrode of metal-oxide-semiconductor of the 5th diode, the metal-oxide-semiconductor
Grid input drive signal.
In the surge current suppression circuit, the filter module includes the 3rd capacitance, one end of the 3rd capacitance
Connect one end of the primary side main winding of the anode of the second diode, the anode of the 3rd diode and transformer, the 3rd capacitance
The other end connect the 4th diode cathode, the cathode of the 5th diode and the source electrode of metal-oxide-semiconductor.
In the surge current suppression circuit, the surge current suppression circuit further includes protection module, the protection
Module includes varistor, one end of one end connection first resistor of the varistor, one end of 3rd resistor, two-way controllable
First main electrode of silicon and the firewire of electric main, the zero curve of the other end connection electric main of the varistor, the three or two
The anode of the cathode of pole pipe and the 5th diode.
In the surge current suppression circuit, the metal-oxide-semiconductor is N-channel MOS pipe.
Compared to the prior art, surge current suppression circuit provided by the utility model, including current limliting module, Time-delayed trigger
Module, rectification module, filter module, transformer and metal-oxide-semiconductor, the transformer include primary side main winding, primary side auxiliary winding and pair
Side winding, after electric main input, the surge current produced at its input initial stage is limited by current limliting module, and by rectification module into
Charge after row rectification to the filter module, after the filter module charging complete, metal-oxide-semiconductor is controlled by external drive signal
Conducting and closing, after electric energy carries out energy conversion process via transformer, by the vice-side winding powering load of transformer, together
When after load starts, the primary side auxiliary winding of transformer produces induced voltage and gives Time-delayed trigger module for power supply, touches the delay
Send out module conducting and the short circuit current limliting module.The utility model realizes the surge current that limitation powers on generation at initial stage, and
By current limliting module short circuit after load stabilization work, the added power dissipation come so as to avoid current limliting module to Power supply belt, section
About cost.
Brief description of the drawings
Fig. 1 is the schematic diagram of surge current suppression circuit provided by the utility model.
Embodiment
The utility model provides a kind of surge current suppression circuit, to make the purpose of this utility model, technical solution and effect
Fruit is clearer, clear and definite, and the utility model is further described in the embodiment that develops simultaneously referring to the drawings.It should be appreciated that this
Locate described specific embodiment only to explain the utility model, be not used to limit the utility model.
Referring to Fig. 1, a kind of surge current suppression circuit provided by the utility model, is connected with load 1, including current limliting mould
Block 10, Time-delayed trigger module 20, rectification module 30, filter module 40, transformer T1 and metal-oxide-semiconductor V1, the transformer T1 include
Primary side main winding, primary side auxiliary winding and vice-side winding, firewire L, current limliting module 10, rectification module 30, the filtering mould of electric main
The primary side main winding of block 40 and transformer T1 are sequentially connected, and the primary side main winding of the transformer T1 is also connected with the metal-oxide-semiconductor V1
Drain electrode, the source electrode connection rectification module 30 and filter module 40 of the metal-oxide-semiconductor V1, the grid input driving of the metal-oxide-semiconductor V1
Signal, the current limliting module 10 and Time-delayed trigger module 20 are in parallel, and the Time-delayed trigger module 20 is also connected with the original of transformer T1
Side auxiliary winding, the rectification module 30 are also connected with the zero curve N of electric main, the vice-side winding connection load 1 of the transformer, institute
It is N-channel MOS pipe to state metal-oxide-semiconductor V1.
Specifically, after electric main input, the surge current of its input generation at initial stage is limited by current limliting module 10, and is passed through
Over commutation module 30 charges after carrying out rectification to the filter module 40, after 40 charging complete of filter module, by outer
The conducting and closing of drive signal control metal-oxide-semiconductor V1 is connect, after electric energy carries out energy conversion process via transformer T1, by transformer
The vice-side winding of T1, which is given, loads 1 power supply, while after load starts, the primary side auxiliary winding generation induced voltage of transformer T1 is prolonged
When trigger module 20 power, make the Time-delayed trigger module 20 conducting and the short circuit current limliting module 10.
Due to powering on initial stage, the filter capacitor of filter module 40 can instantaneously regard short-circuit condition as, can be produced in circuit greatly
Surge current, so the utility model suppresses to power on the surge current that initial stage produces by setting current limliting module 10, filtering
After ripple capacitance charges, the surge current in circuit fades away, further such that load can normally start, transformation at this time
The primary side auxiliary winding of device T1 produces induced voltage and powers to Time-delayed trigger module 20, the Time-delayed trigger module 20 is turned on and short
Current limliting module 10 described in road so that current limliting module 10 is only operated in the initial stage of powering on, avoid its load work normally when to
The added power dissipation that Power supply belt comes, has saved cost.
Furthermore, it is understood that please continue to refer to Fig. 1, the current limliting module 10 includes first resistor R1, the first resistor R1
One end connection electric main firewire L and Time-delayed trigger module 20, the first resistor R1 the other end connection Time-delayed trigger
Module 20 and rectification module 30, since first resistor R1 is just short-circuited after product startup, therefore the first resistor R1 can be selected
The relatively large resistance of resistance value, so as to preferably suppress to power on the surge current at initial stage.
Please continue to refer to Fig. 1, the Time-delayed trigger module 20 include second resistance R2,3rd resistor R3, the first capacitance C1,
Second capacitance C2, the first diode D1 and bidirectional triode thyristor S1, the bidirectional triode thyristor S1 can not only replace two reversed polarity simultaneously
The one-way SCR of connection, and a trigger circuit is only needed, it is more satisfactory alternating-current switch device, after switch can be by first
Resistance R1 short circuits, so as to avoid first resistor R1 from producing extra power consumption, the 3rd resistor R3 and the first capacitance to circuit
C1 forms rc protection circuit, prevents overvoltage caused by connecting and disconnecting of the circuit from producing harm, the first diode D1 to silicon-controlled
For rectifier diode, the second resistance R2 and the second capacitance C2 composition RC oscillating circuits, play a filtering role.
When it is implemented, one end of one end connection first resistor R1 of the 3rd resistor R3, the firewire L of electric main and
The first main electrode of bidirectional triode thyristor S1, one end of the first capacitance C1 of other end connection of the 3rd resistor R3, described first
The second main electrode of other end connection bidirectional triode thyristor S1 of capacitance C1, one end of the second capacitance C2, first resistor R1 it is another
One end of the primary side auxiliary winding at end, rectification module 30 and transformer T1, the second electricity of control terminal connection of the bidirectional triode thyristor S1
The other end of one end of resistance R2, the other end of the second resistance R2 and the second capacitance C2 are all connected with the negative of the first diode D1
Pole, the other end of the primary side auxiliary winding of the cathode connection transformer T1 of the first diode D1.
Please continue to refer to Fig. 1, the rectification module 30 includes the second diode D2, the 3rd diode D3, the 4th diode
The cathode of D4 and the 5th diode D5, the second diode D2 connect the other end, the second capacitance C2 of the first resistor R1
One end, the other end of the first capacitance C1, the anode of the 4th diode D4 and transformer T1 primary side auxiliary winding one end, it is described
The anode of second diode D2 connects the one of the primary side main winding of the anode of the 3rd diode D3, filter module 40 and transformer T1
End, the drain electrode of the other end connection metal-oxide-semiconductor V1 of the primary side main winding, the cathode of the 3rd diode D3 connect the five or two pole
The cathode of the anode of pipe D5 and the zero curve N, the 5th diode D5 of electric main connection filter module 40, the 4th diode D4
Cathode and metal-oxide-semiconductor V1 source electrode, the grid input drive signal of the metal-oxide-semiconductor V1, in other words, second diode
D2, the 3rd diode D3, the 4th diode D4 and the 5th diode D5 composition full bridge rectifiers, for by the exchange city of input
Electricity gives the power supply of load 1, the normal work of proof load 1 after being converted to direct current.
Please continue to refer to Fig. 1, the filter module 40 includes the 3rd capacitance C3, one end connection of the 3rd capacitance C3 the
One end of the primary side main winding of the anode of two diode D2, the anode of the 3rd diode D3 and transformer T1, the 3rd capacitance
The other end of C3 connects cathode, the cathode of the 5th diode D5 and the source electrode of metal-oxide-semiconductor V1 of the 4th diode D4, the 3rd electricity
Hold C3 to be used to be filtered, ensure to be input to the stabilization of the electric current of load, at the initial stage that powers on, the 3rd capacitance C3 chargings, closely
Short circuit is similar to, causes to produce very big surge current in circuit, after the 3rd capacitance C3 charges, the electric current in circuit recovers
Stablize, so that further such that load normal work.
The utility model is by setting the Time-delayed trigger module 20 in parallel with current limliting module 10, and in the primary side of transformer T1
Auxiliary winding is set so that the primary side auxiliary winding of transformer T1 is fed back by vice-side winding produces induced voltage, so as to further may be used
To power to bidirectional triode thyristor S1, after bidirectional triode thyristor S1 conductings, bidirectional triode thyristor S1 is short-circuit by first resistor R1, so that
Extra power consumption will not be produced while limit inrush currents to product again, saved cost, and first resistor R1 can be selected
With big resistance, the limitation capability of surge current is further enhanced.
In preferred embodiment, the surge current suppression circuit further includes protection module 50, and the protection module 50 is wrapped
Include one end of one end connection first resistor R1 of varistor RV, the varistor RV, 3rd resistor R3 one end, it is two-way can
The first main electrode of control silicon S1 and the firewire of electric main, the zero curve L of the other end connection electric main of the varistor RV,
The cathode of 3rd diode D3 and the anode of the 5th diode D5, the varistor RV can play the role of overvoltage protection, from
And it can prevent the component in circuit from being damaged because voltage is excessive.
In conclusion surge current suppression circuit provided by the utility model, including current limliting module, Time-delayed trigger module,
Rectification module, filter module, transformer and metal-oxide-semiconductor, the transformer include primary side main winding, primary side auxiliary winding and secondary around
Group, after electric main input, the surge current of its input generation at initial stage is limited by current limliting module, and whole by rectification module progress
Charge after stream to the filter module, after the filter module charging complete, leading for metal-oxide-semiconductor is controlled by external drive signal
Logical and closing, after electric energy carries out energy conversion process via transformer, by the vice-side winding powering load of transformer, while
After load starts, the primary side auxiliary winding of transformer produces induced voltage and gives Time-delayed trigger module for power supply, makes the Time-delayed trigger mould
Block conducting and the short circuit current limliting module.The utility model realizes the surge current that limitation powers on generation at initial stage, and negative
By current limliting module short circuit after load steady operation, the added power dissipation come so as to avoid current limliting module to Power supply belt, is saved
Cost.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (7)
1. a kind of surge current suppression circuit, connected with load, it is characterised in that including current limliting module, Time-delayed trigger module, whole
Flow module, filter module, transformer and metal-oxide-semiconductor, the transformer include primary side main winding, primary side auxiliary winding and vice-side winding,
After electric main input, the surge current of its input generation at initial stage is limited by current limliting module, and rectification is carried out by rectification module
Charge afterwards to the filter module, after the filter module charging complete, the conducting of metal-oxide-semiconductor is controlled by external drive signal
With closing, after electric energy carries out energy conversion process via transformer, by the vice-side winding powering load of transformer, while bearing
Carry after starting, the primary side auxiliary winding of transformer produces induced voltage and gives Time-delayed trigger module for power supply, makes the Time-delayed trigger module
Turn on the simultaneously short circuit current limliting module.
2. surge current suppression circuit according to claim 1, it is characterised in that the current limliting module includes the first electricity
Resistance, the firewire and Time-delayed trigger module of one end connection electric main of the first resistor, the other end of the first resistor connect
Connect Time-delayed trigger module and rectification module.
3. surge current suppression circuit according to claim 2, it is characterised in that the Time-delayed trigger module includes second
Resistance, 3rd resistor, the first capacitance, the second capacitance, the first diode and bidirectional triode thyristor, one end connection of the 3rd resistor
First main electrode of one end of first resistor, the firewire of electric main and bidirectional triode thyristor, the other end of the 3rd resistor connect
Meet one end of the first capacitance, the second main electrode of the other end connection bidirectional triode thyristor of first capacitance, the one of the second capacitance
One end of the primary side auxiliary winding at end, the other end of first resistor, rectification module and transformer, the control terminal of the bidirectional triode thyristor
The other end of one end of connection second resistance, the other end of the second resistance and the second capacitance is all connected with the negative of the first diode
Pole, the other end of the primary side auxiliary winding of the cathode connection transformer of first diode.
4. surge current suppression circuit according to claim 3, it is characterised in that the rectification module includes the two or two pole
Pipe, the 3rd diode, the 4th diode and the 5th diode, the cathode of second diode connect the another of the first resistor
One end, one end of the second capacitance, the other end of the first capacitance, the anode of the 4th diode and transformer primary side auxiliary winding one
End, the anode of second diode connect the one of the primary side main winding of the anode of the 3rd diode, filter module and transformer
End, the drain electrode of the other end connection metal-oxide-semiconductor of the primary side main winding, the cathode of the 3rd diode connect the 5th diode
The zero curve of anode and electric main, cathode connection filter module, the cathode and metal-oxide-semiconductor of the 4th diode of the 5th diode
Source electrode, the grid input drive signal of the metal-oxide-semiconductor.
5. surge current suppression circuit according to claim 4, it is characterised in that the filter module includes the 3rd electricity
Hold, one end of the 3rd capacitance connect anode, the anode of the 3rd diode and the primary side master of transformer of the second diode around
One end of group, the other end of the 3rd capacitance connect cathode, the cathode of the 5th diode and the source of metal-oxide-semiconductor of the 4th diode
Pole.
6. surge current suppression circuit according to claim 5, it is characterised in that the surge current suppression circuit also wraps
Protection module is included, the protection module includes varistor, one end of one end connection first resistor of the varistor, the 3rd
One end, the first main terminal of bidirectional triode thyristor and the firewire of electric main of resistance, the other end connection of the varistor are handed over
Flow zero curve, the cathode of the 3rd diode and the anode of the 5th diode of alternating current.
7. according to the surge current suppression circuit described in claim 1-6 any one, it is characterised in that the metal-oxide-semiconductor is N ditches
Road metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721496162.4U CN207368650U (en) | 2017-11-10 | 2017-11-10 | A kind of surge current suppression circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721496162.4U CN207368650U (en) | 2017-11-10 | 2017-11-10 | A kind of surge current suppression circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368650U true CN207368650U (en) | 2018-05-15 |
Family
ID=62343725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721496162.4U Active CN207368650U (en) | 2017-11-10 | 2017-11-10 | A kind of surge current suppression circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368650U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968616A (en) * | 2021-02-19 | 2021-06-15 | 北京泰力控科技有限公司 | AC-DC converter and AC-DC conversion system |
| CN114070297A (en) * | 2020-08-05 | 2022-02-18 | 圣邦微电子（北京）股份有限公司 | Level flip circuit with micro power consumption and method for reducing transient current in circuit |
| CN114552965A (en) * | 2022-04-25 | 2022-05-27 | 深圳市暗能量电源有限公司 | Surge current suppression circuit, switching power supply and chip |
-
2017
- 2017-11-10 CN CN201721496162.4U patent/CN207368650U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114070297A (en) * | 2020-08-05 | 2022-02-18 | 圣邦微电子（北京）股份有限公司 | Level flip circuit with micro power consumption and method for reducing transient current in circuit |
| CN112968616A (en) * | 2021-02-19 | 2021-06-15 | 北京泰力控科技有限公司 | AC-DC converter and AC-DC conversion system |
| CN114552965A (en) * | 2022-04-25 | 2022-05-27 | 深圳市暗能量电源有限公司 | Surge current suppression circuit, switching power supply and chip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106505726B (en) | DC UPS based on battery and super capacitor | |
| CN207368650U (en) | A kind of surge current suppression circuit | |
| CN105247773B (en) | A kind of full-controlled bridge fairing with Surge suppression | |
| CN106786452A (en) | One kind automatically shuts down, low-loss discharge circuit and its implementation | |
| CN112091369A (en) | Inverter welding machine protection circuit and electric welding machine | |
| CN104135043B (en) | A kind of two-stage safeguard protection feedback control charger | |
| CN107947557A (en) | A kind of soft starting circuit of anti-over-pressed, under-voltage surge | |
| CN100561816C (en) | Burst current suppressing circuit and use its power supply device | |
| CN2577503Y (en) | Over voltage protection device of single-phase bridge inverter for medium voltage frequency transformer | |
| CN212163157U (en) | Driving circuit of startup input surge current prevention relay | |
| CN201365201Y (en) | Input rectifying and filtering circuit of switch power supply | |
| CN104080221B (en) | A kind of LED drive circuit and LED light | |
| CN204271907U (en) | A kind of soft starting circuit for APFC converter | |
| CN207118034U (en) | A kind of LED drive circuit with defencive function | |
| CN206559074U (en) | A kind of power supply circuit and mobile terminal | |
| CN202889180U (en) | AC (Alternating Current) and DC (Direct Current) input self-adaptive circuit | |
| CN204206316U (en) | A kind of restraining device of impulse current of starting shooting and television set | |
| CN211530732U (en) | Power supply positive and negative polarity reverse connection preventing circuit adopting PMOS (P-channel metal oxide semiconductor) tube | |
| CN204633663U (en) | A kind of three phase alternating current motor positive and reverse rotation control circuit | |
| CN204190477U (en) | A kind of USB charger | |
| CN204349564U (en) | Solar recharging all-in-one | |
| CN203057009U (en) | Half-controlled bridge type rectifying device with surge suppression function | |
| CN203180764U (en) | Low energy consumption current limiting circuit | |
| CN106783401A (en) | A kind of energy-saving resistance-capacitance depressurization relay drive circuit | |
| CN103916031A (en) | Half-controlled bridge rectifier with surge suppression function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |