CN202424569U - Self-energized power pulse generation device and electricity-taking unit - Google Patents
Self-energized power pulse generation device and electricity-taking unit Download PDFInfo
- Publication number
- CN202424569U CN202424569U CN2011205139667U CN201120513966U CN202424569U CN 202424569 U CN202424569 U CN 202424569U CN 2011205139667 U CN2011205139667 U CN 2011205139667U CN 201120513966 U CN201120513966 U CN 201120513966U CN 202424569 U CN202424569 U CN 202424569U
- Authority
- CN
- China
- Prior art keywords
- unit
- subelement
- output pulses
- triode
- generating means
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000015556 catabolic process Effects 0.000 claims description 30
- 239000004065 semiconductor Substances 0.000 claims description 19
- 238000004146 energy storage Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 abstract description 8
- 230000005684 electric field Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model provides a self-energized power pulse generation device and an electricity-taking unit. The electricity-taking unit adopts a capacitor C, and the capacitor comprises upper and lower electrode plates which are parallel to the ground and are erected between a high-tension transmission line and the ground. The utility model also provides a self-energized power pulse generation device comprising the electricity-taking unit, a rectification unit, a power pulse generation unit and a control unit. The electricity-taking unit and the power pulse generation device have the advantages of simple structure, easiness for implementation, low cost and the like. In addition, the electricity-taking unit and the generation device can gain energy by voltage mutual induction without any electricity-taking blind zones or an external power supply, thus being convenient for obtaining the energy and suitable for driving the load working in a high-tension line environment, as well as being applied to devices such as a warning light and a target difficult in power supply in the environment of high-tension transmission line.
Description
Technical field
The utility model belongs to the transmission line output pulses field takes place, and is specifically related to a kind of power taking unit and self energizing output pulses generating means.
Background technology
Up to now, in the output pulses generating means, the overwhelming majority all is the pulse that Applied Digital electronic technology (logic gates, 555 timers and single-chip microcomputer etc.) produces fixed frequency, carries out work thereby drive load.But in some applications, circuit is too complicated to cause cost to cross problems such as height thereby the power generating means of this Applied Digital electronic technology occurs sometimes.
In addition, for the output pulses generating means on the ultra-high-tension power transmission line, relatively more commonly used at present getting can mode mainly contain high-tension current induction, battery and laser transmission energy etc.But can mode still there be many drawbacks in existing getting.For example: the induction by current energy taking device needs bigger starting current, and getting of battery and laser transmission energy can mode exist cost than problems such as height.
Therefore, press for those skilled in the art develop a can own function, simple structure, output pulses generating means with low cost.
The utility model content
In order to overcome the defective of prior art, one of purpose of the utility model is to propose a kind ofly not have that get can the blind area, and gets that can easily get can the unit, and this power taking unit is realized through following technical scheme:
A kind of getting can the unit, and it adopts capacitor C, said capacitor C comprise be parallel to the earth and be set up in ultra-high-tension power transmission line and the earth between upper and lower pole plate.
Further, said capacitor C and ultra-high-tension power transmission line can adopt following any syndeton:
1) it is unsettled top crown to be connected to the upper and lower pole plate of high-voltage alternating circuit;
2) ultra-high-tension power transmission line is unsettled as top crown, bottom crown.
The voltage of being got on the said capacitor C
Wherein, UL is the phase voltage of ultra-high-tension power transmission line, Z
cBe the capacitive reactance of capacitor C, Z
CdCapacitive reactance for the capacitor C d that produces between bottom crown and the earth.
Another purpose of the utility model is to propose a kind of simple structure, self energizing output pulses generating means with low cost, and this device is realized through following technical scheme:
A kind of self energizing output pulses generating means; It comprises power taking recited above unit and rectification unit, output pulses generating unit and control unit; Said power taking unit obtains alternating current from ultra-high-tension power transmission line; And it is delivered to rectification unit be converted into direct current; The output pulses generating unit carries out power storage to the direct current that rectification unit sends, and after according to the control signal that control unit produces direct current being changed into pulsed power signal, exports this pulsed power signal to drive load.
Further, said rectification unit can adopt rectifier bridge.
Further; Said output pulses generating unit can comprise energy-storage units, pulse generation and current limliting unit and pulse signal output unit, and the direct current that said energy-storage units sends rectification unit carries out exporting this direct current to pulse generation and current limliting unit after the power storage; Said pulse generation and current limliting unit carry out current limliting to direct current, and direct current is converted into pulsed power signal; This pulsed power signal is exported through the pulse signal output unit, and load is driven.
Further, said energy-storage units can adopt capacitor C1.
Further, said pulse generation and current limliting unit can comprise metal-oxide-semiconductor and resistor R 3, and said metal-oxide-semiconductor comprises the drain electrode that links to each other with energy-storage units, the source electrode that links to each other with the collector electrode of triode and the grid that links to each other with resistor R 3.
Further; Said pulse signal output unit can comprise triode, the resistor R 1 that links to each other with the base stage of triode and the resistor R 2 that links to each other with the emitter of triode; Said resistor R 2 two ends produce pulsed power signal output, and load is driven.
Further; Said control unit can comprise voltage detecting subelement, time-delay subelement and control signal output subelement; Said voltage detecting subelement comprises divider resistance, and said time-delay subelement comprises timer, and said control signal output subelement comprises control logic circuit; Said time-delay subelement carries out delay process according to the delayed startup signal that the voltage detecting subelement is sent, and control signal output subelement is started, and said control signal output subelement output control signal is interrupted the second breakdown of triode.
Further, can prestore the secondary breakdown voltage of triode in the said voltage detecting subelement, when the input voltage that detects the voltage detecting subelement reaches the secondary breakdown voltage of triode, just export the delayed startup signal.
One or more embodiment of the utility model beneficial effect be:
1, this self energizing output pulses generating means have simple in structure, be easy to realize, advantage such as with low cost, be applicable to drive to be operated in the load in the high-tension line environment; Can be applicable to supply power in the ultra-high-tension power transmission line environment on the equipment such as difficult warning lamp, target, need not external power source, overcome the problem of power supply difficulty in this environment.
2, the power taking unit of the utility model and utilize this to get the generating means that can the unit obtains alternating current; Getting through the mode of voltage induced can; Overcome and obtained the shortcoming that energy mode exists the blind area can't work than hour equipment at electric current through induction by current in the prior art; Not only do not exist and get the ability blind area, and get and to make things convenient for.
Description of drawings
Fig. 1 is the example structure block diagram of the utility model output pulses generating means;
Fig. 2 is the input connection and the capacitance partial pressure principle embodiment sketch map of power taking unit;
Fig. 3 is the principle embodiment block diagram of control unit;
Fig. 4 is the circuit diagram of the embodiment of the utility model output pulses generating means.
Embodiment
Below in conjunction with accompanying drawing each embodiment of the self energizing output pulses generating means of the utility model is done further detailed description.
The utility model can adopt the triode second breakdown technology of Analog Electronics Technique, designs a kind of output pulses generating means.Promptly utilize the second breakdown characteristic of triode, through to triode second breakdown suitably control, under the prerequisite of guaranteeing not make triode to lose efficacy or damaging, realize the conversion of voltage, thereby drive respective load to pulse signal.
The output pulses generating means of the utility model can adopt Analog Electronics Technique to design, and promptly utilizes triode second breakdown technology, realizes the pulse generation function.The height of its occurrence frequency can be decided by the parameter of power taking capacitor and each analogue device of inside circuit.Select different parameter matching, the signal that just has corresponding frequencies takes place.(along with the increase of voltage between transistor collector and the emitter, when collector voltage increased to a certain critical value, the voltage at collector and emitter two ends reduced suddenly, and collector current sharply increases, appearance of negative inhibition effect, triode second breakdown that Here it is.The second breakdown that it has been generally acknowledged that triode is irreversible, may cause the permanent damage of device.Be that voltage reduced suddenly between the collector and emitter when voltage was higher than secondary breakdown voltage between the collector and emitter, collector current sharply increases, and causes expendable, the nonvolatil damage of triode).Second breakdown is harmful to triode in most of situation; But the utility model is through choose reasonable analogue device parameter; And the second breakdown of triode suitably controlled, thereby do not make the extent control that second breakdown takes place triode to lose efficacy or it is not being caused the level of damage.The concrete implementation procedure of facing the output pulses generating means of the utility model down is described in detail.
Fig. 1 shows the example structure block diagram of the output pulses generating means of the utility model, and it comprises power taking unit, rectification unit, output pulses generating unit and control unit four parts, and the concrete structure and the function of each several part are following:
1. power taking unit
The power taking unit can be used as self energizing unit application independently near the various environment that are arranged in the ultra-high-tension power transmission line; Also can be used as the input of the utility model output pulses generating means; Main being responsible for obtained energy from high-tension line periphery electric field, and the energy that all back level unit use all obtains from the power taking unit.The power taking unit can be made up of capacitor C.
As shown in Figure 2, capacitor C is placed on the high-voltage alternating circuit, and a kind of structure is that top crown 1 is directly connected on the high-voltage alternating circuit, and bottom crown 2 is unsettled; During another kind of structure directly with the high-voltage alternating circuit as top crown 1, bottom crown 2 is unsettled.Here, can regard bottom crown 2 as a capacitor over the ground, its electric capacity is labeled as Cd, as shown in Figure 2.
Because electric capacity has capacitive reactance through alternating current the time, according to the capacitance partial pressure principle, can get certain voltage U on the capacitor C
cThe method of power taking comprises the steps: from the ultra-high-tension power transmission line
Constitute a capacitor C through between ultra-high-tension power transmission line and the earth, setting up the upper and lower pole plate that is parallel to the earth;
High voltage electric field between ultra-high-tension power transmission line and the earth makes between the upper and lower pole plate of this capacitor C and produces voltage difference U
c, this voltage difference U
cAs the output pulses driving voltage, through formula
Try to achieve voltage difference U
c, wherein, UL is the phase voltage of ultra-high-tension power transmission line, Z
cBe the capacitive reactance of capacitor C, Z
CdCapacitive reactance for the capacitor C d that produces between bottom crown and the earth.
The utility model is collected the energy on two pole plates that accumulate in capacitor C through capacitor C is set near high-tension line, and through handled, coming provides power supply for late-class circuit.
This power taking unit adopts the mode of bipolar plates electric field induction power taking to get ability from ultra-high-tension power transmission line, for the output pulses generating means provides power supply.Adopt the method to get ability, the power supply that makes the output pulses generating means is not received environmental limitations, even as long as stable voltage is arranged under any enclosed environment or open-air atmosphere, the self energizing unit that adopts the electric field induction mode is with regard to the stable energy of ability sustainable supply.Its operation principle is: no matter how electric current changes in the high-tension line; Its voltage is all stablized constant; So constitute capacitor C through between high-tension line and the earth, setting up two upper and lower pole plates that are parallel to the earth, the high voltage electric field between high-voltage line and the earth will make between the two poles of the earth of this capacitor C and produce enough voltage difference U
cThereby, be the output pulses generating means power supply of the utility model.
2. rectification unit
The effect of rectification unit is that the alternating current that power taking unit (being capacitor C) obtained is converted into direct current, for back grade output pulses generating unit provides energy.This rectification unit can be made up of rectifier bridge D1, but is not limited to this.
Power taking recited above unit and rectification unit can adopt a kind of execution mode shown in Fig. 4 left-hand broken line frame, but are not limited thereto.
3. output pulses generating unit
The mode of output pulses that adopts the output pulses generating unit obtains the electric energy electricity supply and use equipment and uses.The main effect of this unit is that the direct current after the rectification unit conversion is carried out power storage, and changes into the form output of pulsed power signal.It can adopt a kind of execution mode shown in the frame of broken lines of Fig. 4 right side, but is not limited thereto.
The output pulses generating unit can comprise energy-storage units, pulse generation and current limliting unit and pulse signal output unit.
Energy-storage units can be made up of capacitor C1, the drain electrode that it is used for storage of electrical energy and himself voltage is directly acted on metal-oxide-semiconductor Q2.Pulse generation and current limliting unit can be made up of metal-oxide-semiconductor Q2 and resistor R 3, and metal-oxide-semiconductor is used for direct current is converted into pulsed power signal, and this metal-oxide-semiconductor has drain electrode, source electrode and grid: its drain electrode is connected with the end of capacitor C1, the other end ground connection of capacitor C1; Its source electrode links to each other with the collector electrode of triode Q1; Its grid and the output (CON) that an end is connected, resistor R 3 other end connection control signal are exported subelement that is used for direct current is carried out the resistor R 3 of current limliting.The pulse signal output unit can be made up of two resistor R 1, R2 and triode Q1, and triode has collector electrode, base stage and emitter: the voltage VC on its collector electrode links to each other with the source electrode of metal-oxide-semiconductor as input voltage and this collector electrode of control unit; Its base stage is connected with the end of bias resistor R1, the other end ground connection of bias resistor R1; Its emitter is connected with an end of resistor R 2, the other end ground connection of resistor R 2, and resistor R 2 has the effect of stable operating point, and produces pulsed power signal output at the two ends of resistor R 2, is used for driving load.
4. control unit
The major function of control unit is to the output pulses generating unit protection and control to be provided.As shown in Figure 4; Control unit can be made up of voltage detecting subelement, time-delay subelement and control signal output subelement three parts; The voltage detecting subelement can be made up of accurate divider resistance, and the time-delay subelement can be made up of timer, and output signal output subelement can be made up of control logic circuit.The voltage detecting subelement receives and to be added among Fig. 3 the voltage VC on the triode Q1 collector electrode as its input voltage; And it is detected, when detecting input voltage and reach the secondary breakdown voltage of the triode Q1 that presets, output starts the time-delay subelement and the signal of time-delay certain hour; After the time-delay subelement receives this signal; Making control signal CON behind the time-delay certain hour is high level, and controls the control signal CON of metal-oxide-semiconductor Q2 through the output of control signal output subelement, thereby breaks off metal-oxide-semiconductor Q2; Interrupt the second breakdown of triode Q1, burn to prevent Q1.Wherein, preset the secondary breakdown voltage of triode Q1 in the voltage detecting subelement.
Fig. 4 shows the circuit diagram of an embodiment of output pulses generating means of the utility model.Power taking capacitor C obtains electric energy from the high-voltage AC transmission circuit, produces alternating voltage U between upper and lower pole plate
c, after rectifier bridge D1 rectification, C1 charges to capacitor, and the voltage on the capacitor C1 directly acts on the drain electrode of metal-oxide-semiconductor Q2.At this moment, control signal CON is a low level, and metal-oxide-semiconductor Q2 is in conducting state; When the lasting charging of capacitor C1, when magnitude of voltage reached the first breakdown voltage of triode Q1, first breakdown took place in Q1; Capacitor C1 continues charging, and when magnitude of voltage reached the secondary breakdown voltage of Q1, second breakdown took place triode Q1; Controlling the CON signal immediately behind the control unit time-delay certain hour is high level; Break off metal-oxide-semiconductor Q2, make the Q1 second breakdown interrupt (control unit by Fig. 3 is realized), this moment, a pulse output was accomplished.To go up that electric charge releases basically be 0 to capacitor C1 behind the certain hour, is 0 volt (need only each device parameters of circuit and choose suitablely, the voltage at C1 two ends can drop to 0 volt fully basically) basically so the C1 voltage sharply drops to.After metal-oxide-semiconductor Q2 broke off, control signal CON was a low level, the Q2 conducting, and capacitor C1 continues charging, takes place once more once and second breakdown until triode Q1, so back and forth.Produce output pulses Up at resistor R 2 two ends, this pulse can be used for the flicker of driven for emitting lights equipment, the intermittent sounding of audible device etc.
The mode of passing through electric field that the utility model provides obtain energy and produce the generating means of output pulses can driven for emitting lights equipment flicker, the intermittent sounding of audible device etc.Its special feature is to adopt the triode second breakdown characteristic of Analog Electronics Technique to realize pulse frequency generation function, simultaneously the energy that electric field induction comes out is used, and forms self-energizing transmission line output pulses generating means.This device can be used as indicating device, for example: aviation alarm lamp, message board etc.; Also can be used for threatening animal microphone device, traverse the target of power circuit etc.
The driving method of the output pulses generating means of the utility model may further comprise the steps:
Step 1: adopt the mode of bipolar plates electric field induction power taking to obtain alternating current from ultra-high-tension power transmission line.
The concrete grammar of this step is: constitute a capacitor C through between ultra-high-tension power transmission line and the earth, setting up the upper and lower pole plate that is parallel to the earth; High voltage electric field between ultra-high-tension power transmission line and the earth makes between the upper and lower pole plate of this capacitor C and produces voltage difference U
c, it is as the output pulses driving voltage.
Step 2: the alternating current that is obtained is changed into direct current through rectification.
Step 3: direct current is carried out power storage, output DC.
The concrete grammar of this step is: C1 charges to capacitor, capacitor C1 is gone up direct current export and act in the drain electrode of metal-oxide-semiconductor.
Step 4: produce the control signal make metal-oxide-semiconductor conducting or shutoff through control unit, thereby the direct current of output is changed into pulsed power signal, and triode is controlled at second breakdown takes place but in the reversible scope.
The concrete grammar of this step is: when capacitor C1 electric energy stored reaches the secondary breakdown voltage of triode Q1; Behind the control unit time-delay certain hour; The control signal CON that controls metal-oxide-semiconductor Q2 immediately is a high level; Break off metal-oxide-semiconductor Q2, the second breakdown of triode Q1 is interrupted, can the secondary breakdown voltage of triode Q1 be controlled in the reversible scope.
Step 5: the pulsed power signal according to output drives load.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although the utility model has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: still can make amendment or be equal to replacement the embodiment of the utility model; And do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (10)
1. power taking unit, this unit adopts capacitor C, it is characterized in that: said capacitor C comprise be parallel to the earth and be set up in ultra-high-tension power transmission line and the earth between upper and lower pole plate.
2. power taking as claimed in claim 1 unit is characterized in that: it is unsettled that said top crown is connected to the upper and lower pole plate of high-voltage alternating circuit, perhaps that said ultra-high-tension power transmission line is unsettled as top crown, bottom crown.
3. self energizing output pulses generating means with claim 1 or 2 said power taking unit; It is characterized in that; This device comprises power taking unit, rectification unit, output pulses generating unit and control unit; Said power taking unit obtains alternating current from ultra-high-tension power transmission line, and it is delivered to rectification unit is converted into direct current, and the output pulses generating unit carries out power storage to the direct current that rectification unit sends; And after according to the control signal that control unit produced direct current being changed into pulsed power signal, export this pulsed power signal to drive load.
4. self energizing output pulses generating means as claimed in claim 3 is characterized in that: said rectification unit adopts rectifier bridge.
5. self energizing output pulses generating means as claimed in claim 3; It is characterized in that: said output pulses generating unit comprises energy-storage units, pulse generation and current limliting unit and pulse signal output unit, and the direct current that said energy-storage units sends rectification unit carries out exporting this direct current to pulse generation and current limliting unit after the power storage; Said pulse generation and current limliting unit carry out current limliting to direct current, and direct current is converted into pulsed power signal; This pulsed power signal is exported through the pulse signal output unit, and load is driven.
6. self energizing output pulses generating means as claimed in claim 5 is characterized in that: said energy-storage units adopts capacitor C1.
7. self energizing output pulses generating means as claimed in claim 5; It is characterized in that: said pulse generation and current limliting unit comprise metal-oxide-semiconductor and resistor R 3, and said metal-oxide-semiconductor comprises the drain electrode that links to each other with energy-storage units, the source electrode that links to each other with the collector electrode of triode and the grid that links to each other with resistor R 3.
8. self energizing output pulses generating means as claimed in claim 5; It is characterized in that: said pulse signal output unit comprises triode, the resistor R 1 that links to each other with the base stage of triode and the resistor R 2 that links to each other with the emitter of triode; Said resistor R 2 two ends produce pulsed power signal output, and load is driven.
9. like each described self energizing output pulses generating means of claim 3-8; It is characterized in that; Said control unit comprises voltage detecting subelement, time-delay subelement and control signal output subelement; Said voltage detecting subelement comprises divider resistance, and said time-delay subelement comprises timer, and said control signal output subelement comprises control logic circuit; Said time-delay subelement carries out delay process according to the delayed startup signal that the voltage detecting subelement is sent, and control signal output subelement is started, and said control signal output subelement output control signal is interrupted the second breakdown of triode.
10. self energizing output pulses generating means as claimed in claim 9; It is characterized in that: the secondary breakdown voltage that prestores triode in the said voltage detecting subelement; When the input voltage that detects the voltage detecting subelement reaches the secondary breakdown voltage of triode, just export the delayed startup signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205139667U CN202424569U (en) | 2011-12-12 | 2011-12-12 | Self-energized power pulse generation device and electricity-taking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205139667U CN202424569U (en) | 2011-12-12 | 2011-12-12 | Self-energized power pulse generation device and electricity-taking unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424569U true CN202424569U (en) | 2012-09-05 |
Family
ID=46749292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205139667U Expired - Lifetime CN202424569U (en) | 2011-12-12 | 2011-12-12 | Self-energized power pulse generation device and electricity-taking unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138385A (en) * | 2013-03-14 | 2013-06-05 | 长沙五轮电力技术有限公司 | Power-up method and device of switch cabinet on-line monitoring equipment |
-
2011
- 2011-12-12 CN CN2011205139667U patent/CN202424569U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138385A (en) * | 2013-03-14 | 2013-06-05 | 长沙五轮电力技术有限公司 | Power-up method and device of switch cabinet on-line monitoring equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102545688B (en) | Power pulse generation device, drive method, and high-voltage wire electricity getting method | |
| CN201797448U (en) | Full PLC-based high-voltage pulse power supply | |
| CN102055344B (en) | Switch power supply | |
| CN109217497A (en) | A kind of high frequency, efficient wireless charging method and device | |
| CN102540642A (en) | Digital flash lamp and method for controlling flashing of digital flash lamp | |
| CN202424569U (en) | Self-energized power pulse generation device and electricity-taking unit | |
| CN103118456A (en) | Acousto-optical double control timed control circuit and floodlight | |
| CN202423503U (en) | Online maintenance device for lead-acid storage battery | |
| CN204408214U (en) | A kind of pulse triggering means for spark gap protection | |
| CN204349856U (en) | For the electric power system of transmission line monitoring terminal | |
| CN103354415B (en) | A kind of for anti-reverse N-channel MOS tube grid suspension drive circuit | |
| CN104660092A (en) | Pulse trigger device used for spark gap protection | |
| CN106353953A (en) | Flashlight module and flashlight power module | |
| CN101604964B (en) | Frequency conversion trigger circuit for ozone generator | |
| CN201624088U (en) | Combined type intelligent bird repeller | |
| CN206178311U (en) | Flash lamp module and flashlight power module | |
| CN103248212B (en) | Output voltage turning-off control method and circuit of vehicle-mounted sine wave inverter | |
| CN201854235U (en) | Simple speed regulation control circuit of PWM (pulse width modulation) DC motor | |
| CN109756009A (en) | A kind of wireless power supply for intelligent knife handle system | |
| CN103222181A (en) | Photovoltaic system | |
| CN201252374Y (en) | Transmission line combined ultrasonic bird scaring device | |
| CN203368306U (en) | Grid suspension driving circuit used for N-channel MOS tube for preventing reversal connection | |
| CN204013278U (en) | A kind of electric field generation device | |
| CN104022643B (en) | Simple pulse switch power supply PWM generation circuit and method | |
| CN203086791U (en) | Acousto-optic double-control timing control circuit and floodlight |
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: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |