CN205912026U - Changeable high -voltage electronic switch of frequency and width - Google Patents
Changeable high -voltage electronic switch of frequency and width Download PDFInfo
- Publication number
- CN205912026U CN205912026U CN201620829813.6U CN201620829813U CN205912026U CN 205912026 U CN205912026 U CN 205912026U CN 201620829813 U CN201620829813 U CN 201620829813U CN 205912026 U CN205912026 U CN 205912026U
- Authority
- CN
- China
- Prior art keywords
- switch
- drive circuit
- circuit
- nand gate
- control signal
- 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
- Electronic Switches (AREA)
Abstract
The utility model relates to a changeable high -voltage electronic switch of frequency and width, a serial communication port, open drive circuit, switch disconnection drive circuit, high -voltage switch module including power module, defeated entry control processing circuit, switch, open drive circuit, switch disconnection drive circuit by power module for defeated entry control processing circuit, switch and provide entry control 1, entry control 5Vi that defeated entry control processing circuit's input entry control 4 brought, drive circuit and switch disconnection drive circuit are opened to defeated entry control processing circuit's output entry control 8 switch. The utility model provides an electronic switch can use in needs produce the circuit of the quick pulse of high voltage, for example: attenuation oscillasion impulse generator, high -voltage pulse wave generator etc. The utility model discloses the rising edge time of nanosecond level is possess, great pulse current can be exported. Compare with traditional switch, have that speed is fast, output impedance low, longe -lived, advantages such as the drive is simple, low power dissipation.
Description
Technical field
The utility model is related to a kind of switch module for emc impulse generator, for example, be used for meeting international standard iec
The damped oscillation wave producer of 61000-4-18 or the ring wave producer meeting international standard iec 61000-4-12.
Background technology
In emc detection and e measurement technology, carry out, under the interference of damp oscillatory wave, the performance of equipment being entered in equipment and system
Row assessment, carrys out the weighing device and system interference free performance to the wave of oscillation.Impulse generator using be closing of circuit breaker in middle
The moment closed or disconnect produces disturbing pulse, uses mechanical switch at present, such as contactor, vacuum the switch of application more
Mercoid switch etc., is not to adjust well in frequency and width.
Content of the invention
The purpose of this utility model is to provide a kind of high-frequency, broad-adjustable high-pressure electronic switch to carry out instead front machine
The switch of tool formula is so that the performance of alternating wave generator is improved well.
In order to achieve the above object, the technical solution of the utility model there is provided the high pressure of a kind of frequency and variable-width
Electronic switch is it is characterised in that including power module, input control signal process circuit, switch open drive circuit, switching and break
Open drive circuit, high voltage switching module, be input control signal process circuit, switch open drive circuit, opened by power module
Close and drive circuit offer operating voltage is provided, the input of input control signal process circuit receives the control that controller is brought
Signal vi, open drive circuit and switch off driving electricity respectively by driving switch for the output end of input control signal process circuit
Road, drives high voltage switching module to open by switch open drive circuit, and after the opening time arrives, high voltage switching module is disconnected via switch
Drive drive circuit and release energy thus disconnecting, wherein:
Described input control signal process circuit includes NAND gate one, and an input of NAND gate one is via resistance r1 even
Connect control signal vi, another input of NAND gate one is grounded via resistance r2, and the output end of NAND gate one connects NAND gate
Two two inputs, the output end of NAND gate two is grounded via electric capacity c1 and resistance r3, two input terminations of NAND gate three
Enter between electric capacity c1 and resistance r3, the output end of NAND gate three connects two inputs of NAND gate four, the output of NAND gate four
End forms drive signal vo.
Preferably, described high voltage switching module includes first being connected the combination that formed after parallel connection again by multiple high pressure mosfet pipes
Formula structure and the accumulator being arranged at fabricated structure grid；
Described switch open drive circuit will be defeated for described input control signal process circuit by transformer-coupled mode
The drive signal going out is coupled to the grid of fabricated structure, so that fabricated structure is turned on；
Described activate switch disconnects drive circuit, by transformer-coupled mode, described input control signal is processed electricity
The drive signal of road output is coupled to the grid of fabricated structure, so that fabricated structure is ended, the energy of fabricated structure grid
Disconnect drive circuit by described activate switch to discharge rapidly.
The utility model provides electronic switch can apply in the circuit needing to produce high voltage fast-pulse, for example:
Damped oscillation wave producer, high-voltage pulse wave producer etc..The utility model has the rising time of nanosecond, can export relatively
Big pulse current.Compared with traditional switch, have the advantages that speed is fast, output impedance is low, life-span length, drive simple, low in energy consumption,
Particularly as follows:
1st, triggering control voltage is 3～5.5v, can be compatible with low-voltage control circuit level well；
2nd, output pulse width is variable, and wide ranges, arbitrarily changes between 500ns～500us；
3rd, the rising time of output pulse is short, can reach nanosecond after optimization；
4th, the electric insulating quality of output end and input can exceed that 10kv, can realize high-pressure side well and control with input
The isolation at end.
5th, operating voltage can reach 4kv.
Brief description
A kind of frequency that Fig. 1 provides for the utility model and the circuit module of the high-pressure electronic switch of variable-width are illustrated
Figure；
Fig. 2 is the circuit diagram of the input control signal process circuit in the utility model；
The application circuit of the electronic switch that Fig. 3 provides for the utility model.
Specific embodiment
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
As shown in figure 1, the utility model provide a kind of frequency and variable-width high-pressure electronic switch internal have following
Functional module: power module, input control signal process circuit, the drive circuit of unlatching switch, the drive circuit of disconnection switch,
High voltage switching module.Hereinafter modules are explained respectively.
Power module, the control circuit of the electronic switch that the utility model provides is powered using direct current 5v, in electronic switch
The drive circuit in portion then adopt 30v and 350v DC-voltage supply, therefore power module need by direct current 5v be converted into 30v and
350v, so comprise oscillating circuit, power tube, transformer, pwm modulation circuit etc. in power module.
As shown in Fig. 2 input control signal process circuit includes NAND gate one u1, an input warp of NAND gate one u1
By resistance r1 connection control signal vi, another input of NAND gate one u1 is grounded via resistance r2, and NAND gate one u1's is defeated
Go out two inputs that end connects NAND gate two u2, the output end of NAND gate two u2 is grounded via electric capacity c1 and resistance r3, and non-
Two inputs of door three u3 access between electric capacity c1 and resistance r3, and the output end of NAND gate three u3 connects the two of NAND gate four u4
Individual input, the output end of NAND gate four u4 forms drive signal vo
Control signal vi brought from single-chip microcomputer or other kinds of controller first pass around Schmidt imported with
Not gate one u1 and NAND gate two u2 is filtered shaping, filtering interference signals.Then line width is entered to the control signal of switch
Adjustment, by the discharge and recharge of resistance r3 and electric capacity c1, by the time constant of rc circuit and NAND gate three u3, NAND gate four u4
The input threshold magnitude of voltage of schmidt trigger type, to limit the width controlling pulse, to ensure that control signal has enough arteries and veins
Rush width and deliver to drive circuit, and by limiting the width controlling pulse come the opening time of limit switch.Because excessive opens
The time of opening can lead to the increase of high pressure mosfet pipe power consumption, damages beyond the peak power of pipe permission.By control signal
Process circuit and switch driving circuit, to realize the regulation of switching frequency and switching width.
High voltage switching module, because the single drain electrode of mosfet pipe and the operating voltage of source electrode are extremely difficult to several kilovolts, just
It is that to reach price be also very expensive.High voltage switching module of the present utility model is realized by the series connection of high pressure mosfet pipe
The requirement of high working voltage.Then in order to realize the ability of logical high current, parallel combination is carried out again to mosfet pipe, finally this height
The module that compresses switch is capable of the purpose of high withstand voltage high current.
Open signal is coupled to high pressure mosfet pipe group by transformer-coupled mode by switch open drive circuit
Grid, is provided with accumulator in grid, for maintaining the constant conduction of mosfet.
Switch off drive circuit, equally adopt transformer-coupled mode, when activated between arrived the expected time, open
Move and switch off drive circuit, the energy of mosfet tube grid is discharged rapidly, reach the purpose disconnecting switch.
As shown in figure 3, a kind of application drawing of the high-pressure electronic switch providing for the utility model, switch of the present utility model
There are 7 controlling switch, wherein: 1 pin inputs for trigger, need during application to access resistance to earth, such as 100 ohm；2 pin are
Power supply ground and signal ground；3 pin are 5v DC supply input, and this pin needs to connect decoupling capacitor, such as the electrolytic capacitor of 100uf
Deng；5 pin are that the decoupling of 30v exports it is recommended that connecing 50v/100uf electrolytic capacitor；7 pin are that the decoupling of 350v exports it is recommended that connecing
450v/10uf electrolytic capacitor.In figure 3, work as c2=4nf, during l1=6.3uh, the frequency of oscillation of damped oscillation wave producer
=1mhz, works as c2=40nf, during l1=63uh, the frequency of oscillation=100mhz of damped oscillation wave producer.
Although the utility model is disclosed as above with preferred embodiment, so it is not limited to the utility model, any
Those skilled in the art, without departing from spirit and scope of the present utility model, when a little modification and perfect can be made, therefore this
The protection domain of utility model is when by being defined that claims are defined.
Claims (2)
1. the high-pressure electronic switch of a kind of frequency and variable-width is it is characterised in that including power module, inputting at control signal
Manage circuit, switch open drive circuit, switch off drive circuit, high voltage switching module, be that input controls letter by power module
Number process circuit, switch open drive circuit, switch off drive circuit operating voltage is provided, input control signal process circuit
Input receive control signal vi brought of controller, the output end driving switch respectively of input control signal process circuit
Open drive circuit and switch off drive circuit, drive high voltage switching module to open by switch open drive circuit, during unlatching
Between arrive after, high voltage switching module releases energy thus disconnecting via switching off drive circuit, wherein:
Described input control signal process circuit includes NAND gate one (u1), and an input of NAND gate one (u1) is via resistance
R1 connection control signal vi, another input of NAND gate one (u1) is grounded via resistance r2, the output of NAND gate one (u1)
End connects two inputs of NAND gate two (u2), and the output end of NAND gate two (u2) is grounded via electric capacity c1 and resistance r3, with
Two inputs of not gate three (u3) access between electric capacity c1 and resistance r3, and the output end of NAND gate three (u3) connects NAND gate four
(u4) two inputs, the output end of NAND gate four (u4) forms drive signal vo.
2. the high-pressure electronic of a kind of frequency and variable-width switchs it is characterised in that described height presses off as claimed in claim 1
Close module to include first being connected after parallel connection again the fabricated structure that formed and be arranged at fabricated structure by multiple high pressure mosfet pipes
The accumulator of grid；
Described input control signal process circuit is exported by described switch open drive circuit by transformer-coupled mode
Drive signal is coupled to the grid of fabricated structure, so that fabricated structure is turned on；
The expected time has been arrived, described input control signal process circuit activate switch disconnects drive circuit between when activated, will
The energy of fabricated structure grid discharges rapidly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829813.6U CN205912026U (en) | 2016-08-02 | 2016-08-02 | Changeable high -voltage electronic switch of frequency and width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829813.6U CN205912026U (en) | 2016-08-02 | 2016-08-02 | Changeable high -voltage electronic switch of frequency and width |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205912026U true CN205912026U (en) | 2017-01-25 |
Family
ID=57802557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620829813.6U Active CN205912026U (en) | 2016-08-02 | 2016-08-02 | Changeable high -voltage electronic switch of frequency and width |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205912026U (en) |
-
2016
- 2016-08-02 CN CN201620829813.6U patent/CN205912026U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107124163B (en) | Composite mode solid-state pulse source | |
| CN104617808B (en) | Square wave high-voltage pulse electric source circuit that polarity is adjustable and the control strategy for producing bipolar pulse | |
| CN206412760U (en) | A kind of anti-reverse voltage surge, spike and ripple protection circuit | |
| CN106786396A (en) | One kind amendment ripple inverter intelligent type protective switch of the short circuit circuit | |
| CN105337483A (en) | Device for preventing current from flowing backwards | |
| CN103825578B (en) | One is applicable to hold the simple and easy pulse generating unit of the wide band high pressure of resistive load | |
| CN107947531A (en) | A kind of Medical power control circuit for meeting EMC and safety standard | |
| CN105471591B (en) | POE power supply systems and method of supplying power to | |
| CN209446685U (en) | A kind of system for eliminating electrical fast transient (eft) interference | |
| CN105262138B (en) | A kind of photovoltaic module optimizer | |
| CN106067793A (en) | A kind of high-pressure electronic switch of frequency and variable-width | |
| CN205912026U (en) | Changeable high -voltage electronic switch of frequency and width | |
| CN206506287U (en) | One kind amendment ripple inverter intelligent type protective switch of the short circuit circuit | |
| CN109444599A (en) | A kind of system and method for eliminating electrical fast transient (eft) interference | |
| CN107465361B (en) | A kind of pulsed high voltage generator of miniaturization | |
| CN104759352A (en) | Electric precipitation pulse high voltage supply controller | |
| CN208156170U (en) | A kind of initiative alarming circuit of bus power source | |
| CN206727011U (en) | A kind of protection device | |
| CN108802630A (en) | A kind of initiative alarming circuit of bus power source | |
| CN206517300U (en) | A kind of constant current input power controls circuit | |
| CN108649606A (en) | And off-network switching device | |
| CN102005802B (en) | Power frequency UPS (Uninterrupted Power Supply) isolation center line circuit | |
| CN104113051B (en) | Energy transference system and method based on primary pulse source self coupling | |
| CN203859673U (en) | Trigger system of three-phase bridge rectifying circuit | |
| CN103627886B (en) | For eliminating the impulse of current Controlling System of unrelieved stress |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210419 Address after: 200063 floor 15 and 16, No. 509, Wuning Road, Putuo District, Shanghai Patentee after: Shanghai Electric Power Intelligent Equipment Technology Co.,Ltd. Patentee after: SHANGHAI ELECTRICAL APPARATUS RESEARCH INSTITUTE (Group) Co.,Ltd. Patentee after: SHANGHAI ELECTRICAL APPARATUS Research Institute Address before: 200063 No. 505, Wuning Road, Shanghai, Putuo District Patentee before: SHANGHAI SANKI ELECTRONIC INDUSTRIES Co.,Ltd. Patentee before: SHANGHAI ELECTRICAL APPARATUS RESEARCH INSTITUTE (Group) Co.,Ltd. Patentee before: SHANGHAI ELECTRICAL APPARATUS Research Institute |