CN105763036A - Quick starting circuit of power chip and metering instrument made of circuit - Google Patents
Quick starting circuit of power chip and metering instrument made of circuit Download PDFInfo
- Publication number
- CN105763036A CN105763036A CN201610316867.7A CN201610316867A CN105763036A CN 105763036 A CN105763036 A CN 105763036A CN 201610316867 A CN201610316867 A CN 201610316867A CN 105763036 A CN105763036 A CN 105763036A
- Authority
- CN
- China
- Prior art keywords
- circuit
- clamp
- power chip
- power
- divider resistance
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
Abstract
The invention discloses a quick starting circuit for a power chip. The quick starting circuit comprises a starting switch pipe, a power-on reset circuit, a trigger circuit with time delay and a clamping circuit. A power source pin signal of the power chip passes through the power-on reset circuit, the trigger circuit with time delay and the clamping circuit, and thus a clamping voltage signal is output; the clamping voltage signal is connected with a rectified high-voltage bus through a starting resistor, and is further connected with the control end of the starting switch pipe, the movable end of the starting switch pipe is connected with the high-voltage bus, and the other end of the starting switch pipe is connected with a power source pin of the power chip. The invention further discloses a metering instrument made of the quick starting circuit for the power chip. According to the quick starting circuit for the power chip, quick starting of the power chip can be ensured, the circuits are simple and reliable, and power consumption is extremely low; by application of the metering instrument, quick starting of the power chip in the metering instrument can also be ensured, and power consumption is low.
Description
Technical field
Present invention relates particularly to the fast start circuit of a kind of power chip and the measuring instrument made with this circuit.
Background technology
Along with the raising of the development of China's economic technology and people's living standard, Power Electronic Technique has been widely used in production and the life of people.Power chip is as part indispensable in electric and electronic technical field, and its importance is self-evident.
The power chip of existing supply convertor or other power electronic products, chip is required for the high voltage bus after by rectification before normal operation and is powered to the power pins of chip by resistance, after power pins reaches running voltage, chip ability normal operation, now outlet side sets up voltage, powered to power pins by auxiliary winding again, so the startup time is together decided on by the pin capacitance starting resistance and power pins.It is illustrated in figure 1 the power chip power supply circuits schematic diagram of a certain AC-DC converter: it can be seen that, before chip normal operation, high voltage bus after rectification is powered to the VDD power pins of chip by starting resistance Rst, the start-up capacitance charging of power pins simultaneously, power pins VDD reaches running voltage, and now power chip is started working, and controls the work of DRV pin, thus just beginning at outlet side to set up voltage, then powered by diode and current-limiting resistance by power supply winding；After chip operation, VDD supply voltage will be provided energy source by transformer-supplied winding, and now we need the sufficiently large resistance that starts to minimize the quiescent dissipation that startup resistance brings.Additionally, when power pins VDD first time arrives chip startup voltage, chip will be started working, but now transformator auxiliary winding can't provide enough energy to maintain the current drain of chip, this is accomplished by start-up capacitance Cvdd and adopts big capacitance to maintain vdd voltage, making power pins voltage be not less than the shutoff voltage of chip, otherwise chip will repeated priming and operation irregularity.Therefore, the actual startup of power chip is determined by starting resistance Rst and start-up capacitance Cvdd；The start-up course of chip then directly requires that starting resistance Rst and start-up capacitance Cvdd all takes bigger value；But, the startup time that bigger resistance and capacitance can directly result in power chip is slack-off.
Summary of the invention
An object of the present invention is in that to provide a kind of fast start circuit that ensure that power chip that power chip quickly starts.
The two of the purpose of the present invention are in that the measuring instrument providing a kind of fast start circuit applying described power chip to make.
The fast start circuit of this power chip provided by the invention, including start resistance, start-up capacitance, for electric diode and current-limiting resistance, also include starting switch pipe, electrification reset circuit, flip-flop circuit with time delay and clamp circuit；The power supply winding of transformator is connected with the power pins of power chip for electric diode and current-limiting resistance by what connect, start-up capacitance is connected between the power pins of power chip and ground, the power pins signal of power chip passes through electrification reset circuit, flip-flop circuit and clamp circuit with time delay export clamping voltage signal, clamping voltage signal is connected with the high voltage bus after rectification by starting resistance, clamping voltage signal is also connected with the control end of starting switch pipe, one end of starting switch pipe movable end is connected with the high voltage bus after rectification, the other end is connected with the power pins of power chip；Clamp circuit is for the conducting of the quick control starting switch pipe when power chip powers on, to improve the charge rate of start-up capacitance, it is ensured that power chip fast powering-up；Electrification reset circuit is for after power chip fast powering-up, continue to provide driving signal to clamp circuit by the flip-flop circuit with time delay, ensure that clamp circuit continues to export clamp signal when the power supply winding of transformator can not independently be powered to power chip, ensure the power supply supply of chip, and transformator power supply winding can independently give power chip independently-powered time stop to clamp circuit provide drive signal, to reduce circuit power consumption.
Described starting switch pipe is N-type metal-oxide-semiconductor.
The described trigger with time delay is the R input rest-set flip-flop with rising edge delay circuit.
Described electrification reset circuit includes the first comparator, the second comparator, the first divider resistance, the second divider resistance and the 3rd divider resistance；The power pins of power chip is connected to ground by the first divider resistance connected, the second divider resistance and the 3rd divider resistance, and the input negative pole of the first comparator and the input positive pole of the second comparator are all connected with the second datum；The input positive pole of the first comparator is connected to the 3rd divider resistance between the second divider resistance, and the input negative pole of the second comparator is connected between the first divider resistance and the second divider resistance.
The second described datum is 2V.
Described clamp circuit includes clamp switch pipe, operational amplifier, the first clamp divider resistance, the second clamp divider resistance, the 3rd clamp divider resistance and clamp and controls switching tube；First clamp divider resistance, the second clamp divider resistance and the 3rd clamp divider resistance be serially connected in and clamp circuit output signal between；The output signal of the flip-flop circuit with time delay connects clamp and controls the control end of switching tube, and clamp controls one end of switching tube movable end and is connected to ground, and the other end is connected between the 3rd clamp divider resistance and the second clamp divider resistance；The in-phase input end of operational amplifier is connected between the first clamp divider resistance and the second clamp divider resistance；The inverting input of operational amplifier connects the first datum；The outfan of operational amplifier connects the control end of clamp switch pipe, and one end of clamp switch pipe movable end is connected to ground, and the other end connects clamp circuit output signal.
The first described datum is 6V.
Described clamp switch pipe is N-type metal-oxide-semiconductor.
It is N-type metal-oxide-semiconductor that described clamp controls switching tube.
Present invention also offers a kind of measuring instrument, described measuring instrument is applied the fast start circuit of described power chip and is made.
The fast start circuit of this power chip provided by the invention, switching tube quickly it is on and to start-up capacitance quick charge by clamp circuit in the power supply electrifying moment, thus guaranteed output chip power pin gets final product fast powering-up before transformer-supplied coil normal operation, before power chip fast powering-up and transformer-supplied coil normal operation by electrification reset circuit and delay circuit guaranteed output chip continue power on, and after transformer-supplied coil normal operation, the output signal of clamp circuit is turned off by electrification reset circuit, thus reducing the power consumption of circuit；Therefore the fast start circuit of this power chip provided by the invention ensure that the quick startup of power chip, and circuit is simple and reliable, and power consumption is extremely low.Applying the measuring instrument that the fast start circuit of power chip provided by the invention is made, the power chip that ensure that equally in measuring instrument quickly starts, and power consumption is relatively low.
Accompanying drawing explanation
Fig. 1 is the power chip power supply circuits schematic diagram of background of invention.
Fig. 2 is the functional block diagram of the fast start circuit of the power chip of the present invention.
Fig. 3 is the circuit theory diagrams of the specific embodiment of the fast start circuit of the power chip of the present invention.
Fig. 4 is the working waveform figure of the specific embodiment of the fast start circuit of the power chip of the present invention.
Detailed description of the invention
It is illustrated in figure 2 the functional block diagram of the fast start circuit of the power chip of the present invention: the power supply winding of transformator is connected with the power pins (indicating VDD in figure) of power chip for electric diode and current-limiting resistance by what connect, start-up capacitance (indicates Cvdd) and is connected between the power pins of power chip and ground in figure, the power pins signal of power chip passes through electrification reset circuit, flip-flop circuit and clamp circuit with time delay export clamping voltage signal (indicating STG in figure), clamping voltage signal is connected with the high voltage bus after rectification by starting resistance (indicating Rst in figure), clamping voltage signal is also connected with the control end of starting switch pipe (indicating Mst in figure), one end of starting switch pipe movable end is connected with the high voltage bus after rectification, the other end is connected with the power pins of power chip；Clamp circuit is for the conducting of the quick control starting switch pipe when power chip powers on, to improve the charge rate of start-up capacitance, it is ensured that power chip fast powering-up；Electrification reset circuit is for after power chip fast powering-up, continue to provide driving signal to clamp circuit by the flip-flop circuit with time delay, ensure that clamp circuit continues to export clamp signal when the power supply winding of transformator can not independently be powered to power chip, ensure the power supply supply of chip, and stop when the power supply winding of transformator can independently be powered to power chip providing to clamp circuit driving signal, to reduce circuit power consumption.
It is illustrated in figure 3 the circuit theory diagrams of the specific embodiment of the fast start circuit of the power chip of the present invention: electrification reset circuit includes the first comparator (indicating Comp1 in figure), the second comparator (indicating Comp2 in figure), the first divider resistance (indicating R4 in figure), the second divider resistance (indicating R5 in figure) and the 3rd divider resistance (indicating R6 in figure)；The power pins (indicating VDD in figure) of power chip is connected to ground by the first divider resistance connected, the second divider resistance and the 3rd divider resistance, the input negative pole of the first comparator and the input positive pole of the second comparator are all connected with the second datum, are specially 2V；The input positive pole of the first comparator is connected to the 3rd divider resistance between the second divider resistance, and the input negative pole of the second comparator is connected between the first divider resistance and the second divider resistance.
Trigger with time delay is the R input rest-set flip-flop with rising edge delay circuit.
Clamp circuit includes clamp switch pipe (indicating M1 in figure), operational amplifier (indicating OP1 in figure), the first clamp divider resistance (indicating R1 in figure), the second clamp divider resistance (indicating in figure) R2, the 3rd clamp divider resistance (indicating R3 in figure) and clamp and controls switching tube (indicating M2 in figure)；First clamp divider resistance, the second clamp divider resistance and the 3rd clamp divider resistance be serially connected in and clamp circuit output signal between；The output signal of the flip-flop circuit with time delay connects clamp and controls the control end of switching tube, and clamp controls one end of switching tube movable end and is connected to ground, and the other end is connected between the 3rd clamp divider resistance and the second clamp divider resistance；The in-phase input end of operational amplifier is connected between the first clamp divider resistance and the second clamp divider resistance；The inverting input of operational amplifier connects the first datum, is specially 6V；The outfan of operational amplifier connects the control end of clamp switch pipe, and one end of clamp switch pipe movable end is connected to ground, and the other end connects clamp circuit output signal.
When specific works, when after power supply electrifying, the voltage of STG will by starting resistance Rst pull-up, after the voltage of STG rises above the threshold voltage of starting switch pipe Mst, starting switch pipe Mst turns on, charge to start-up capacitance Cvdd, owing to the equivalent resistance of starting switch pipe Mst is very low, therefore use starting switch pipe Mst substantially will can improve toggle speed to chip start-up capacitance Cvdd charging.Due to now chip power vdd voltage less thanWithSo now VDD_ON signal level is low, VDD_OFF signal level is high, and CLP_HI signal level is high.
When STG signal voltage rises and reaches STG_CLP_H, STG voltage will be clamped and no longer rises, and now starting switch pipe Mst continues to charge to start-up capacitance Cvdd, whenTime, VDD_OFF level signal is by high step-down, but VDD_ON level signal is still low, so CLP_HI will stay in that high constant.
WhenTime, VDD_ON level signal is uprised by low, chip is started working, but owing to now chip is just just started working, the auxiliary winding of transformator provides energy can't independently to the power vd D of power chip, but the existence with rising edge delay circuit, therefore ON_DLY signal will just become height after delay time, in this delay time, starting switch pipe Mst provides energy by continuing to the power pins VDD of power chip, avoiding problems and need the very big start-up capacitance Cvdd problem to maintain vdd voltage in this stage, thus ensureing to use little Cvdd electric capacity can significantly increase the circuit start time.
After after delay time, ON_DLY signal uprises, and the output of rest-set flip-flop uprises, CLP_HI step-down, the clamp voltage of STG will be reduced to STG_CLP_L voltage, and starting switch pipe Mst will become cut-off state, the VDD energy of chip will have transformator compole to provide completely, and whole start-up course terminates.In whole start-up course, the working waveform figure of each key point of start-up circuit is as shown in Figure 4.
Claims (10)
1. a fast start circuit for power chip, including start resistance, start-up capacitance, for electric diode and current-limiting resistance, it is characterised in that also include starting switch pipe, electrification reset circuit, flip-flop circuit with time delay and clamp circuit；The power supply winding of transformator is connected with the power pins of power chip for electric diode and current-limiting resistance by what connect, start-up capacitance is connected between the power pins of power chip and ground, the power pins signal of power chip passes through electrification reset circuit, flip-flop circuit and clamp circuit with time delay export clamping voltage signal, clamping voltage signal is connected with the high voltage bus after rectification by starting resistance, clamping voltage signal is also connected with the control end of starting switch pipe, one end of starting switch pipe movable end is connected with the high voltage bus after rectification, the other end is connected with the power pins of power chip；Clamp circuit is for the conducting of the quick control starting switch pipe when power chip powers on, to improve the charge rate of start-up capacitance, it is ensured that power chip fast powering-up；Electrification reset circuit is for after power chip fast powering-up, continue to provide driving signal to clamp circuit by the flip-flop circuit with time delay, ensure that clamp circuit continues to export clamp signal when the power supply winding of transformator can not independently be powered to power chip, ensure the power supply supply of chip, and transformator power supply winding can independently give power chip independently-powered time stop to clamp circuit provide drive signal, to reduce circuit power consumption.
2. the fast start circuit of power chip according to claim 1, it is characterised in that described starting switch pipe is N-type metal-oxide-semiconductor.
3. the fast start circuit of power chip according to claim 1, it is characterised in that the described trigger with time delay is the R input rest-set flip-flop with rising edge delay circuit.
4. the fast start circuit according to the power chip one of claims 1 to 3 Suo Shu, it is characterised in that described electrification reset circuit includes the first comparator, the second comparator, the first divider resistance, the second divider resistance and the 3rd divider resistance；The power pins of power chip is connected to ground by the first divider resistance connected, the second divider resistance and the 3rd divider resistance, and the input negative pole of the first comparator and the input positive pole of the second comparator are all connected with the second datum；The input positive pole of the first comparator is connected to the 3rd divider resistance between the second divider resistance, and the input negative pole of the second comparator is connected between the first divider resistance and the second divider resistance.
5. the fast start circuit of power chip according to claim 4, it is characterised in that the second described datum is 2V.
6. the fast start circuit according to the power chip one of claims 1 to 3 Suo Shu, it is characterised in that described clamp circuit includes clamp switch pipe, operational amplifier, the first clamp divider resistance, the second clamp divider resistance, the 3rd clamp divider resistance and clamp and controls switching tube；First clamp divider resistance, the second clamp divider resistance and the 3rd clamp divider resistance be serially connected in and clamp circuit output signal between；The output signal of the flip-flop circuit with time delay connects clamp and controls the control end of switching tube, and clamp controls one end of switching tube movable end and is connected to ground, and the other end is connected between the 3rd clamp divider resistance and the second clamp divider resistance；The in-phase input end of operational amplifier is connected between the first clamp divider resistance and the second clamp divider resistance；The inverting input of operational amplifier connects the first datum；The outfan of operational amplifier connects the control end of clamp switch pipe, and one end of clamp switch pipe movable end is connected to ground, and the other end connects clamp circuit output signal.
7. the fast start circuit of power chip according to claim 6, it is characterised in that the first described datum is 6V.
8. the fast start circuit of the power chip according to claim 6 one, it is characterised in that described clamp switch pipe is N-type metal-oxide-semiconductor.
9. the fast start circuit of power chip according to claim 6, it is characterised in that it is N-type metal-oxide-semiconductor that described clamp controls switching tube.
10. a measuring instrument, it is characterised in that include the fast start circuit of the described power chip of one of claim 1～9, and utilize the fast start circuit of described power chip that the power chip of measuring instrument is quickly started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316867.7A CN105763036B (en) | 2016-05-13 | 2016-05-13 | The fast start circuit of power chip and the measuring instrument made of the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316867.7A CN105763036B (en) | 2016-05-13 | 2016-05-13 | The fast start circuit of power chip and the measuring instrument made of the circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105763036A true CN105763036A (en) | 2016-07-13 |
| CN105763036B CN105763036B (en) | 2018-04-17 |
Family
ID=56322933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316867.7A Active CN105763036B (en) | 2016-05-13 | 2016-05-13 | The fast start circuit of power chip and the measuring instrument made of the circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105763036B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103864A (en) * | 2018-09-13 | 2018-12-28 | 广州烽火众智数字技术有限公司 | A kind of compact sedan flow statistical equipment booting delay and protection circuit |
| CN111478605A (en) * | 2020-04-15 | 2020-07-31 | 深圳市稳先微电子有限公司 | Synchronous rectification control chip and AC-DC system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097927A (en) * | 2011-01-18 | 2011-06-15 | Bcd半导体制造有限公司 | Starting circuit of switch power supply chip and starting method of starting circuit |
| CN202364112U (en) * | 2011-11-20 | 2012-08-01 | 合肥华耀电子工业有限公司 | Starting circuit of control chip of switching-mode power supply |
| US20140016359A1 (en) * | 2012-07-13 | 2014-01-16 | Flextronics Ap, Llc | Power converters with quasi-zero power consumption |
| CN103887960A (en) * | 2014-04-21 | 2014-06-25 | 美芯晟科技（北京）有限公司 | Quick starting control circuit of convertor |
| US20150194876A1 (en) * | 2012-08-21 | 2015-07-09 | Stmicroelectronics S.R.L. | Wirelessly activated power supply for an electronic device |
| CN205610475U (en) * | 2016-05-13 | 2016-09-28 | 威胜集团有限公司 | Quick starting circuit of power chip and metering device who makes with this circuit |
-
2016
- 2016-05-13 CN CN201610316867.7A patent/CN105763036B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097927A (en) * | 2011-01-18 | 2011-06-15 | Bcd半导体制造有限公司 | Starting circuit of switch power supply chip and starting method of starting circuit |
| CN202364112U (en) * | 2011-11-20 | 2012-08-01 | 合肥华耀电子工业有限公司 | Starting circuit of control chip of switching-mode power supply |
| US20140016359A1 (en) * | 2012-07-13 | 2014-01-16 | Flextronics Ap, Llc | Power converters with quasi-zero power consumption |
| US20150194876A1 (en) * | 2012-08-21 | 2015-07-09 | Stmicroelectronics S.R.L. | Wirelessly activated power supply for an electronic device |
| CN103887960A (en) * | 2014-04-21 | 2014-06-25 | 美芯晟科技（北京）有限公司 | Quick starting control circuit of convertor |
| CN205610475U (en) * | 2016-05-13 | 2016-09-28 | 威胜集团有限公司 | Quick starting circuit of power chip and metering device who makes with this circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103864A (en) * | 2018-09-13 | 2018-12-28 | 广州烽火众智数字技术有限公司 | A kind of compact sedan flow statistical equipment booting delay and protection circuit |
| CN111478605A (en) * | 2020-04-15 | 2020-07-31 | 深圳市稳先微电子有限公司 | Synchronous rectification control chip and AC-DC system |
| CN111478605B (en) * | 2020-04-15 | 2021-07-06 | 深圳市稳先微电子有限公司 | Synchronous rectification control chip and AC-DC system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105763036B (en) | 2018-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104124878B (en) | Power supply module, switching power source chip and switch power supply system | |
| CN107508466B (en) | Boost-voltage regulator with efficient soft starting circuit | |
| CN204482092U (en) | A kind of non-isolated voltage-dropping type LED drive circuit of intelligent synchronization rectification | |
| CN206432888U (en) | Power supply circuit, Switching Power Supply control chip and switch power supply system | |
| CN103683861A (en) | Novel silicon-controlled rectifier trigger circuit | |
| CN105763036A (en) | Quick starting circuit of power chip and metering instrument made of circuit | |
| CN205610475U (en) | Quick starting circuit of power chip and metering device who makes with this circuit | |
| CN104411035B (en) | A kind of LED drive circuit powered without assists winding | |
| CN204856368U (en) | Singlechip supply circuit | |
| CN104023445B (en) | A kind of LED drive circuit | |
| CN107465257B (en) | Automatic switching circuit for main power supply and standby power supply | |
| CN202940620U (en) | Battery charging circuit and control circuit thereof | |
| CN206564464U (en) | A kind of current foldback circuit without sample resistance | |
| CN104199500B (en) | High voltage generating circuit and method, power source control circuit and electronic system | |
| CN209562228U (en) | Electrification circuit and clock circuit | |
| CN204030994U (en) | Supply module, switching power source chip and switch power supply system | |
| CN205540054U (en) | Power -off control ware is driven in low -power consumption | |
| CN207410318U (en) | Improve the exciting circuit of power field effect pipe driving voltage | |
| CN206442559U (en) | A kind of LED drive circuit | |
| CN206250994U (en) | A kind of AC DC power supply circuits | |
| CN104703356A (en) | Non-isolated step-down LED driving circuit of intelligent synchronous rectification | |
| CN204205950U (en) | high efficiency booster circuit | |
| CN204243834U (en) | A kind of charging circuit of ZigBee terminal equipment | |
| CN105186459B (en) | The output short-circuit protection method and circuit of a kind of Switching Power Supply | |
| CN204886132U (en) | Prevent voltage pulse circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161116 Address after: 410003, Changsha, Yuelu District, silver basin Ling Ling Street, No. 359 South Road, No., No. two, 1-5 Applicant after: HUNAN SHENG AND ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 410205 Tongzi, Changsha, Changsha hi tech Development Zone, west slope road, No. 468, Applicant before: WASION Group Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: The two phase of the project wasion Technology Park No. 468 Tongzi high tech Development Zone, Hunan province Changsha road 410205 No. 11 building 101 floor No. 1-8 Applicant after: HUNAN SEEHRE POWER TECHNOLOGY CO.,LTD. Address before: 410003, Changsha, Yuelu District, silver basin Ling Ling Street, No. 359 South Road, No., No. two, 1-5 Applicant before: HUNAN SHENG AND ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information |
Address after: The two phase of the project wasion Technology Park No. 468 Tongzi high tech Development Zone in Hunan province Changsha slope 410205 West Road No. 11 building 101 floor No. 1-8 Applicant after: HUNAN SEEHRE POWER TECHNOLOGY CO.,LTD. Address before: The two phase of the project wasion Technology Park No. 468 Tongzi high tech Development Zone, Hunan province Changsha road 410205 No. 11 building 101 floor No. 1-8 Applicant before: HUNAN SEEHRE POWER TECHNOLOGY CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231101 Address after: Room 101, 3rd Floor, Building 11, Phase II of Weisheng Science and Technology Park, No. 468 Tongzipo West Road, High tech Development Zone, Changsha City, Hunan Province, 410205 Patentee after: Hunan Shenghe Intelligent Control Technology Co.,Ltd. Address before: 410205 no.1-8, 3rd floor, 101, No.11 plant, phase II project, Weisheng Science Park, no.468, tongzipo West Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN SEEHRE POWER TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |