CN202679331U - A floating plate modulator circuit with timing trigger pulse - Google Patents
A floating plate modulator circuit with timing trigger pulse Download PDFInfo
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- CN202679331U CN202679331U CN 201220222754 CN201220222754U CN202679331U CN 202679331 U CN202679331 U CN 202679331U CN 201220222754 CN201220222754 CN 201220222754 CN 201220222754 U CN201220222754 U CN 201220222754U CN 202679331 U CN202679331 U CN 202679331U
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Abstract
The utility model discloses a floating plate modulator circuit with timing trigger pulse. The floating plate modulator circuit comprises a crystal oscillator, a pulse shaping circuit, driving and amplifying chips, a pulse transformer, an opening tube, and a tail cutting tube. The output end of an external PRF signal and the crystal oscillator are connected with two inputs of an and gate circuit respectively, while the output end of the and gate circuit generates an opening pulse by a differentiating circuit and the pulse shaping circuit. The external PRF signal also generates a tail cutting pulse by the differentiating circuit and the pulse shaping circuit. Having been amplified by the driving and amplifying chips, the two pulse signals are outputted to the primary coil of the pulse transformer. Two sets secondary coils of the pulse transformer disposed in parallel are connected with the opening pipe and the tail cutting pipe through a corresponding voltage holding circuit, respectively. With simple structure and small size in high-voltage circuit, the floating plate modulator circuit modulates a random pulse width signal to be transmitted into a high-frequency narrow pulse and transmits the high-frequency narrow pulse to a modulating tube in order to achieve high frequency and transmission of high potential and low potential of a DC signal, transmission width being capable of reaching a DC TTL signal.
Description
Technical field
The utility model relates to a kind of floating-deck modulator circuit, is specifically related to a kind of commutator pulse and triggers the floating-deck modulator circuit, belongs to field of electronic devices.
Background technology
In the float plate pulse modulator, owing to need the high potential isolation, usually realize the isolation of high electronegative potential with the mode of pulse transformer coupling and Optical Fiber Transmission.Because the time-delay of Optical Fiber Transmission is larger, for much requiring the very little transmitter of transmission delay, can only adopt the pulse transformer coupling.But when the width conversion that requires to export pulse is very large (as: the pulse width variations scope is 0.5us-400ms), independent a kind of modulator is difficult to realize the pulse change of wide region like this.
The utility model content
Be to solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of can effectively reach the triggertiming pulse floating-deck modulator circuit that stable adaptation and wide region adjusting pulsewidth require.
For achieving the above object, the utility model is to realize by following technical scheme:
A kind of triggertiming pulse floating-deck modulator circuit, it is characterized in that, comprise crystal oscillator, AND circuit, pulse shaper, the drive amplification chip, pulse transformer, open pipe and back-end crop pipe, described crystal oscillator be connected the output of PRF signal and connect respectively two inputs of AND circuit, the output of described AND circuit connects the input of drive amplification chip by pulse shaper, the output of described drive amplification chip connects the primary coil of pulse transformer, and the secondary coil of pulse transformer is set side by side with two groups, and the driving signal of secondary coil is opposite, simultaneously two groups of secondary coils by voltage hold circuit respectively with open pipe and be connected with the back-end crop pipe.The output of AND circuit produces through differential circuit, pulse shaper and opens pulse, the outside PRE signal in another road produces the back-end crop pulse through differential, pulse shaper, after the amplification of two pulse signals through the drive amplification chip, export the primary coil of pulse transformer to.
In addition, the frequency of crystal oscillator is 1.4M, and the pulse compression in the time of can guaranteeing to be operated in high frequency is very little.
The beneficial effects of the utility model are: the utility model is simple in structure, dwindled the high-pressure section volume of floating-deck modulator, and any broad pulse that will transmit is modulated into high-frequency narrow-pulse and is transferred to modulating tube, realized burst pulse so that the TTL signal that width can reach direct current is transmitted in the high electronegative potential transmission of direct current signal.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the timing chart of outside PRF signal described in the utility model;
Fig. 3 is the timing chart of AND circuit output signal described in the utility model;
Fig. 4 is the timing chart of output signal described in the utility model;
Fig. 5 is the timing chart of opening the pulse differential signal described in the utility model;
Fig. 6 is back-end crop pulse differential signal pulse oscillogram described in the utility model;
Fig. 7 is the signal pulse oscillogram after the shaping pulse of opening described in the utility model;
Fig. 8 is signal pulse oscillogram after the back-end crop shaping pulse described in the utility model;
Fig. 9 is the pipe pulse transformer timing chart of opening described in the utility model.
Figure 10 is back-end crop pipe pulse transformer timing chart described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done concrete introduction.
Fig. 1 is the structural representation of the utility model one embodiment.
As shown in Figure 1: a kind of triggertiming pulse floating-deck modulator circuit, comprise that frequency is the crystal oscillator N1 of 1.4M, outside PRF signal, AND circuit N2, differential circuit and the first rectifier N3, the pulse shaper that the second rectifier N4 consists of, the first drive amplification chip N5, the second drive amplification chip N6, pulse transformer T1, open pipe V1 and back-end crop pipe V2, described crystal oscillator N1 be connected the output of PRF signal and be connected respectively two inputs with AND circuit N2 and connect, and exporting the first drive amplification chip N5 and the second drive amplification chip N6 to after the shaping of the output signal of AND circuit N2 through differential circuit and the first rectifier N3, the output of the second drive amplification chip N6 connects primary coil T1-1 one end of pulse transformer T1.Outside PRF signal also exports the first drive amplification chip N5 and the second drive amplification chip N6 to after the shaping through differential and the second rectifier N4 in addition, the output of the first drive amplification chip N5 connects the second drive amplification chip N6, and another output of described the second drive amplification chip N6 connects the other end of the primary coil T1-1 of pulse transformer T1.The secondary coil of pulse transformer T1 is set side by side with two groups, and the driving signal of secondary coil is opposite, simultaneously two groups of secondary coil T1-2, T1-3 by voltage hold circuit respectively with open pipe V1 and be connected with back-end crop pipe V2, be one of them secondary coil by the second rectifier N4 with open pipe V1 and be connected, the another one secondary coil is managed V2 and is connected with opening by the first drive amplification chip N5.
What the first rectifier N3 exported is a positive pulse string, can not transferring energy thereby directly can make by pulse transformer T1 that pulse transformer T1 is saturated, so high frequency capacitance C of string in pulse transformer T1 primary coil, high frequency capacitance C plays the saturated effect of magnetic core that stopping direct current prevents pulse transformer T1.
The course of work of the present utility model is: the oscillogram TTL1 of the output signal of crystal oscillator N1 as shown in Figure 2, the output signal TTL2(of outside broad pulse is as shown in Figure 3), TTL1 and TTL2 add to respectively 2 inputs of AND circuit N2.Modulation by AND circuit N2 becomes a string high-frequency pulse string to broad pulse TTL signal, the oscillogram of the output signal TTL3 of AND circuit N2 (as shown in Figure 4).
Referring to Fig. 5-Figure 10, because the output driving force of AND circuit N2 is not enough to pulse transformer T1, so between the output of AND circuit N2 and pulse transformer T1, add first a rectifier N3.The output signal of the first rectifier N3 is a positive pulse string, can not transferring energy thereby directly can make by pulse transformer T1 that pulse transformer T1 is saturated, so high frequency capacitance of string plays the saturated effect of magnetic core that stopping direct current prevents pulse transformer T1 in the primary coil T1-1 of pulse transformer.In addition, modulator generally all is to need one to open pipe V1 and a back-end crop pipe V2 could realize pulse output, manages V1 and the needed driving signal of back-end crop pipe V2 is opposite signal and open, so need to drive respectively by 2 groups of opposite driving signals.Pulse transformer T1 coiling 2 groups of secondary coils, one of them by the second rectifier N4 with open pipe V1 and be connected, the another one secondary coil is managed V2 and is connected with opening by the first drive amplification chip N5.
The utility model guarantees that by the frequency of oscillation of appropriate design crystal oscillator N1 it both can work in state of narrow pulse, also can be operated in broad pulse and dc state.Open the pipe driving in the modulator under individual pulse triggers because former commutator pulse triggers, it is very wide that pulsewidth can not keep, and can not realize the broad pulse modulation.So the utility model modulator is opened the pulse number that pipe drives by increase, realize the broad pulse modulation.
Above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in the protection range of the present utility model.
Claims (5)
1. triggertiming pulse floating-deck modulator circuit, it is characterized in that, it comprises crystal oscillator, AND circuit, pulse shaper, the drive amplification chip, pulse transformer, open pipe and back-end crop pipe, the output of outside PRF signal be connected crystal oscillator and connect respectively two inputs of AND circuit, the output of described AND circuit connects the input of drive amplification chip by pulse shaper, the output of described drive amplification chip connects the primary coil of pulse transformer, and the secondary coil of pulse transformer is set side by side with two groups, and the driving signal of secondary coil is opposite, simultaneously two groups of secondary coils by voltage hold circuit respectively with open pipe and be connected with the back-end crop pipe.
2. a kind of triggertiming pulse floating-deck modulator circuit according to claim 1 is characterized in that, thus in the primary coil of pulse transformer the string high frequency capacitance.
3. a kind of triggertiming pulse floating-deck modulator circuit according to claim 1, it is characterized in that, described pulse shaper comprises the first rectifier and the second rectifier, the input that the output signal process differential circuit of described AND circuit and the first rectifier connect described drive amplification chip, described outside PRF signal connects the input of described drive amplification chip by differential circuit and the second rectifier.
4. according to claim 1 or 3 described a kind of triggertiming pulse floating-deck modulator circuit, it is characterized in that, described drive amplification chip comprises the first described drive amplification chip and the second described drive amplification chip, and the output of the described first described drive amplification chip connects the input of the second described drive amplification chip.
5. a kind of triggertiming pulse floating-deck modulator circuit according to claim 1 is characterized in that the frequency of described crystal oscillator is 1.4M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222754 CN202679331U (en) | 2012-05-17 | 2012-05-17 | A floating plate modulator circuit with timing trigger pulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222754 CN202679331U (en) | 2012-05-17 | 2012-05-17 | A floating plate modulator circuit with timing trigger pulse |
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| Publication Number | Publication Date |
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| CN202679331U true CN202679331U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220222754 Expired - Lifetime CN202679331U (en) | 2012-05-17 | 2012-05-17 | A floating plate modulator circuit with timing trigger pulse |
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| CN (1) | CN202679331U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915199A (en) * | 2016-04-16 | 2016-08-31 | 合肥博雷电气有限公司 | Fully-solid wide-pulse floating panel modulator |
| CN105932987A (en) * | 2016-04-17 | 2016-09-07 | 合肥博雷电气有限公司 | Pulse timing triggering floating plate modulator circuit |
| CN106208631A (en) * | 2016-08-30 | 2016-12-07 | 苏州泰思特电子科技有限公司 | Arbitrarily pulsewidth MOSFET electrical switch drive circuit |
-
2012
- 2012-05-17 CN CN 201220222754 patent/CN202679331U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915199A (en) * | 2016-04-16 | 2016-08-31 | 合肥博雷电气有限公司 | Fully-solid wide-pulse floating panel modulator |
| CN105915199B (en) * | 2016-04-16 | 2018-09-18 | 合肥博雷电气有限公司 | A kind of Full solid wide pulse floating-deck modulator |
| CN105932987A (en) * | 2016-04-17 | 2016-09-07 | 合肥博雷电气有限公司 | Pulse timing triggering floating plate modulator circuit |
| CN105932987B (en) * | 2016-04-17 | 2018-11-06 | 合肥博雷电气有限公司 | A kind of triggertiming pulse floating-deck modulator circuit |
| CN106208631A (en) * | 2016-08-30 | 2016-12-07 | 苏州泰思特电子科技有限公司 | Arbitrarily pulsewidth MOSFET electrical switch drive circuit |
| CN109495098A (en) * | 2016-08-30 | 2019-03-19 | 苏州泰思特电子科技有限公司 | Compact electronic switch driving circuit |
| CN109495099A (en) * | 2016-08-30 | 2019-03-19 | 苏州泰思特电子科技有限公司 | Any pulse width type low power electronics switch |
| CN106208631B (en) * | 2016-08-30 | 2019-07-23 | 苏州泰思特电子科技有限公司 | Any pulsewidth MOSFET electronic switch driving circuit |
| CN109495099B (en) * | 2016-08-30 | 2022-06-21 | 苏州泰思特电子科技有限公司 | Arbitrary pulse width type low power electronic switch |
| CN109495098B (en) * | 2016-08-30 | 2022-07-19 | 苏州泰思特电子科技有限公司 | Compact electronic switch driving circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI XINHUADONG PHOTOELECTRIC TECHNOLOGY RESEA Free format text: FORMER OWNER: HUADONG PHOTOELECTRIC TECHNIQUE INSTITUTE OF ANHUI PROVINCE Effective date: 20141016 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 241002 WUHU, ANHUI PROVINCE TO: 200000 MINHANG, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141016 Address after: 200000, No. 115, Chun Chun Road, Shanghai, Minhang District Patentee after: Shanghai Huadong Photoelectric Technology Research Institute Address before: 241002 Yijiang District, Wuhu, China Hi tech Development Zone, science and Technology Park Patentee before: Huadong Photoelectric Technique Institute of Anhui Province |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |