CN202150790U - Voltage-stabilizing DC overvoltage-resisting surge EMI power source filter - Google Patents
Voltage-stabilizing DC overvoltage-resisting surge EMI power source filter Download PDFInfo
- Publication number
- CN202150790U CN202150790U CN201120299082U CN201120299082U CN202150790U CN 202150790 U CN202150790 U CN 202150790U CN 201120299082 U CN201120299082 U CN 201120299082U CN 201120299082 U CN201120299082 U CN 201120299082U CN 202150790 U CN202150790 U CN 202150790U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- overvoltage
- overvoltage surge
- emi
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a voltage-stabilizing DC overvoltage-resisting surge EMI (Electro-Magnetic Interference) power source filter including an overvoltage-resisting surge module and an EMI power source filter. The overvoltage-resisting surge module is connected to a positive electrode of an output power source of the EMI power source filter. The EMI power source filter is also provided with a multi-level common-mode circuit and differential-mode circuit. The overvoltage-resisting surge module is a voltage-stabilizing overvoltage-resisting surge module. The voltage-stabilizing overvoltage-resisting surge module includes a sampling circuit, a voltage-stabilizing control circuit, a DC output circuit, a protection circuit, and an over-voltage surge suppressing circuit. The voltage-stabilizing DC overvoltage-resisting surge EMI power source filter in the utility model can provide stable voltage and the stable voltage can be designed according to user requirements.
Description
Technical field
The utility model relates to a kind of filter, is specifically related to a kind of voltage regulation type direct current EMI of anti-overvoltage surge power-supply filter.
Background technology
According to " GJB181-86 aviation power supply characteristic reaches the requirement to power consumption equipment ", airborne power consumption equipment should satisfy the requirement of anti-transient voltage.Wherein when doing the test of the anti-overvoltage of direct current, require power supply to jump+80V from normal steady state voltage+28V, 50 milliseconds of duration, turn back to then+28V, do 5 tests in continuous 5 minutes, require the equipment can operate as normal after voltage recovers.According to " GJB181A-2003 aviation power supply characteristic requirements ", aircraft direct current system surge characteristic is+50V 50 milliseconds of maximum duration, in 1 second, to return below the 31.5V.Airborne power consumption equipment must be compatible with the supplied character of regulation.Therefore, airborne DC power supply device all requires to have the characteristic of anti-overvoltage surge, satisfies the overvoltage surge test of corresponding operative norm.
The power-supply filter that is used for the anti-electromagnetic interference of airborne equipment, great majority adopt L, C device, and all more than 100V, just itself, there is not any problem in anti-anti-overvoltage surge test to the proof voltage ability.But the working power of general airborne instrument and meter be+28V, and the maximum voltage that can bear is about+40V, and important data acquisition equipment requirement still can operate as normal under the overvoltage surge state.Therefore, the power-supply filter of airborne anti-electromagnetic interference must possess the inhibit feature of anti-the overvoltage surge, protects follow-up equipment not damage because of overvoltage surge.
Be generally used for suppressing the overvoltage surge device of thunder and lightning, generation of static electricity; With like snowslide voltage stabilizing didoe, piezo-resistance, can recover fuse, air spark gap, gas-filled surge discharger, controllable silicon, transient voltage restraining diode devices such as (TVS) and can form multistage voltage stabilizing, bypass type surge protection circuit; Requiring to resist+80V, continuing under the specific condition of 50 milliseconds of anti-overvoltage surge, the voltage stabilized range of above-mentioned device, shunting ability, response time receive certain restriction.Experiment shows, transient power reaches the surge voltage that large power supply that 30 kilowatts TVS device all is difficult to satisfy the surge test chamber produces.
A kind of power-supply filter (patent No. is CN200920078450.7) is arranged in the prior art, is a kind of power-supply filter of blocking-up type.When voltage surpassed its set point, the transmission of filter meeting blocking voltage guaranteed that subsequent conditioning circuit does not damage because of overvoltage surge.But during overvoltage surge, can not power supply be provided, need jumbo storage capacitor could guarantee that subsequent conditioning circuit works during surge to subsequent conditioning circuit.
The utility model content
The utility model provides a kind of voltage regulation type direct current EMI of anti-overvoltage surge power-supply filter, has solved the problem that continual and steady voltage can not be provided during overvoltage surge in the prior art.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of voltage regulation type direct current EMI of anti-overvoltage surge power-supply filter; The EMI power-supply filter that comprises anti-overvoltage surge module and anti-electromagnetic interference; Described anti-overvoltage surge module series connection inserts the positive pole of EMI power-supply filter out-put supply; Also be provided with multistage common-mode circuit and differential mode circuit in the described EMI power-supply filter; Described anti-overvoltage surge module is the anti-overvoltage surge module of voltage regulation type direct current, comprises in the anti-overvoltage surge module of described voltage regulation type direct current that sample circuit, controlling circuit of voltage regulation, dc output circuit, protective circuit, overvoltage surge suppress circuit.
Further technical scheme is; Sample circuit, controlling circuit of voltage regulation, dc output circuit, protective circuit in the anti-overvoltage surge module of above-mentioned voltage regulation type direct current are formed KL-3 by IC and peripheral circuit; KL-3 connects with load RL, guarantees that the parallelly connected formation with load of the storage capacitor C1 overvoltage surge of under voltage work suppresses circuit.
Compared with prior art; The beneficial effect of the utility model is: the utility model adopts IC and peripheral circuit to form the anti-overvoltage surge module of voltage regulation type direct current; The anti-overvoltage surge module of this voltage regulation type direct current can provide continual and steady voltage, and its burning voltage can design by customer requirements; Simultaneously the utility model has also that volume is little, response speed fast, more rationally perfect, the high reliability features of defencive function.
Description of drawings
Fig. 1 is the anti-overvoltage surge modular circuit of a utility model voltage regulation type direct current sketch map;
Fig. 2 is a KL-3 partial circuit sketch map in the anti-overvoltage surge module of the utility model voltage regulation type direct current;
Fig. 3 is the circuit diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified, but the execution mode of the utility model is not limited thereto.
Like Fig. 1, shown in Figure 3, a kind of voltage regulation type direct current EMI of anti-overvoltage surge power-supply filter comprises the EMI power-supply filter of anti-overvoltage surge module of voltage regulation type direct current and anti-electromagnetic interference; The anti-overvoltage surge module of voltage regulation type direct current is made up of IC and peripheral circuit; Wherein sample circuit, controlling circuit of voltage regulation, dc output circuit and the protective circuit of IC and peripheral circuit composition constitute KL-3; KL-3 connects with load RL, guarantees that the parallelly connected formation with load of the storage capacitor C1 overvoltage surge of under voltage work suppresses circuit; The EMI power-supply filter is made up of multistage common-mode circuit and differential mode circuit, and wherein common mode capacitance CY1 and common mode inductance L 1 respectively are two formation common-mode circuits, and differential mode capacitor CX1, CX2 and differential mode inductance L2, L3 constitute the differential mode circuit, and R is a bleeder resistance; The anti-overvoltage surge module of voltage regulation type direct current is connected on EMI power-supply filter out-put supply anode.
Among Fig. 2, R2 and R3 constitute voltage sample circuit, when output voltage surpasses set point; Controlling circuit of voltage regulation is started working, and its output directly extremely links to each other with the control of metal-oxide-semiconductor Q1, exports a short-period cut-off signals; Output voltage reduces, metal-oxide-semiconductor Q1 conducting then, and output voltage raises; Get into the shutoff cycle once more, thereby obtain stable output voltage; R1 is the overcurrent sample resistance of protective circuit, and when output current surpassed set point, output current was limited, thus protective circuit; The TVS pipe is provided with for suppressing 600V spike circuit; Capacitor C is the required capacitor of burning voltage.
The burning voltage of the anti-overvoltage surge module of voltage regulation type direct current is typically designed to 36V ± 1V in the utility model.During work; When surge voltage rises to the voltage stabilized range 36V of the anti-overvoltage surge module of voltage regulation type direct current ± 1V; Electronic circuit gets into the voltage stabilizing state from the voltage follow state, makes the output amplitude of voltage be no more than 36V ± 1V, makes follow-up equipment avoid the impact of overvoltage surge; When surge voltage is reduced to when forcing down the 1V left and right sides than stable electrical, the output voltage of the anti-overvoltage surge module of voltage regulation type direct current is got back to following state, keeps output voltage with the relation that input voltage changes, and makes equipment get back to the normal power supply operating state.
Claims (2)
1. the voltage regulation type direct current EMI of anti-overvoltage surge power-supply filter; The EMI power-supply filter that comprises anti-overvoltage surge module and anti-electromagnetic interference; Described anti-overvoltage surge module series connection inserts the positive pole of EMI power-supply filter out-put supply; Also be provided with multistage common-mode circuit and differential mode circuit in the described EMI power-supply filter; It is characterized in that: described anti-overvoltage surge module is the anti-overvoltage surge module of voltage regulation type direct current, comprises in the anti-overvoltage surge module of described voltage regulation type direct current that sample circuit, controlling circuit of voltage regulation, dc output circuit, protective circuit, overvoltage surge suppress circuit.
2. the voltage regulation type direct current EMI of anti-overvoltage surge power-supply filter according to claim 1; It is characterized in that: sample circuit, controlling circuit of voltage regulation, dc output circuit, protective circuit in the anti-overvoltage surge module of described voltage regulation type direct current are formed KL-3 by IC and peripheral circuit; KL-3 connects with load RL, guarantees that the parallelly connected formation with load of the storage capacitor C1 overvoltage surge of under voltage work suppresses circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120299082U CN202150790U (en) | 2011-08-17 | 2011-08-17 | Voltage-stabilizing DC overvoltage-resisting surge EMI power source filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120299082U CN202150790U (en) | 2011-08-17 | 2011-08-17 | Voltage-stabilizing DC overvoltage-resisting surge EMI power source filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150790U true CN202150790U (en) | 2012-02-22 |
Family
ID=45591841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120299082U Expired - Lifetime CN202150790U (en) | 2011-08-17 | 2011-08-17 | Voltage-stabilizing DC overvoltage-resisting surge EMI power source filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150790U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885343A (en) * | 2012-12-20 | 2014-06-25 | 中国科学院沈阳自动化研究所 | Wireless gateway device with explosion suppression and electromagnetic shielding function |
| CN104037747A (en) * | 2013-03-07 | 2014-09-10 | 深圳市海洋王照明工程有限公司 | Output over-voltage protection circuit and lamp with over-voltage protection function |
| CN104702089A (en) * | 2015-01-31 | 2015-06-10 | 深圳市美吉星集成科技有限公司 | Magnetic integrated active strong surge resistant EMI filter |
| CN106505842A (en) * | 2016-10-19 | 2017-03-15 | 飞亚达（集团）股份有限公司 | Airborne DC source |
| CN109683532A (en) * | 2019-01-08 | 2019-04-26 | 上海应用技术大学 | A kind of steering engine and more steering engine controllers and unmanned aerial vehicle control system |
| CN110212742A (en) * | 2019-06-20 | 2019-09-06 | 北京元六鸿远电子科技股份有限公司 | A kind of DC wave filter not generating great start-up current |
| CN113937999A (en) * | 2021-10-13 | 2022-01-14 | 中国电子科技集团公司第五十四研究所 | Handheld multimode radio station and filter circuit for suppressing electromagnetic interference thereof |
-
2011
- 2011-08-17 CN CN201120299082U patent/CN202150790U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885343A (en) * | 2012-12-20 | 2014-06-25 | 中国科学院沈阳自动化研究所 | Wireless gateway device with explosion suppression and electromagnetic shielding function |
| CN104037747A (en) * | 2013-03-07 | 2014-09-10 | 深圳市海洋王照明工程有限公司 | Output over-voltage protection circuit and lamp with over-voltage protection function |
| CN104702089A (en) * | 2015-01-31 | 2015-06-10 | 深圳市美吉星集成科技有限公司 | Magnetic integrated active strong surge resistant EMI filter |
| CN106505842A (en) * | 2016-10-19 | 2017-03-15 | 飞亚达（集团）股份有限公司 | Airborne DC source |
| CN106505842B (en) * | 2016-10-19 | 2019-09-10 | 飞亚达（集团）股份有限公司 | Airborne DC power supply |
| CN109683532A (en) * | 2019-01-08 | 2019-04-26 | 上海应用技术大学 | A kind of steering engine and more steering engine controllers and unmanned aerial vehicle control system |
| CN110212742A (en) * | 2019-06-20 | 2019-09-06 | 北京元六鸿远电子科技股份有限公司 | A kind of DC wave filter not generating great start-up current |
| CN113937999A (en) * | 2021-10-13 | 2022-01-14 | 中国电子科技集团公司第五十四研究所 | Handheld multimode radio station and filter circuit for suppressing electromagnetic interference thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202150790U (en) | Voltage-stabilizing DC overvoltage-resisting surge EMI power source filter | |
| CN102270831B (en) | Wide-voltage power protection device of intelligent vehicle-mounted terminal | |
| CN202034757U (en) | Protective circuit | |
| CN202333771U (en) | Power supply protection circuit and engineering machinery | |
| CN205453114U (en) | Power supply surge inhibitor with prevent joining conversely function | |
| CN202772567U (en) | Global function airplane power supply characteristic protective device | |
| CN201435604Y (en) | Power supply wave filter | |
| CN206542180U (en) | A kind of Surge suppression power module | |
| CN105068636A (en) | Anti-shock surge circuit applied to ruggedized computer | |
| CN103166444B (en) | Remote turn-off control signal receiving circuit | |
| CN202076780U (en) | Self-adapting anti-lightning anti-surging control circuit | |
| CN106505842A (en) | Airborne DC source | |
| CN203787956U (en) | Surge voltage suppression circuit | |
| CN104362608A (en) | Overvoltage suppression and under-voltage surge detection circuit | |
| CN204886175U (en) | Antisurge module | |
| CN104035538B (en) | Mainboard protection circuit | |
| CN204068199U (en) | A kind of under-voltage surge current protection circuit | |
| CN105226808A (en) | Airborne electronic product intelligent emergent is powered secondary power supply | |
| CN2904421Y (en) | Blocking type overvoltage resistance surge inhibiting power filter | |
| CN202997539U (en) | A super capacitor voltage balance protection circuit | |
| CN202373958U (en) | Over/under voltage protection circuit | |
| CN210351116U (en) | Time delay control circuit | |
| CN203562772U (en) | Floated high overvoltage surge inhibition power supply filter circuit | |
| CN203896028U (en) | Multi-port usb charger | |
| CN203826946U (en) | Cell explosionproof circuit and cell charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |