CN207426953U - A kind of signal multiplexing electronic circuit and apply its switch type regulator - Google Patents
A kind of signal multiplexing electronic circuit and apply its switch type regulator Download PDFInfo
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- CN207426953U CN207426953U CN201721045982.1U CN201721045982U CN207426953U CN 207426953 U CN207426953 U CN 207426953U CN 201721045982 U CN201721045982 U CN 201721045982U CN 207426953 U CN207426953 U CN 207426953U
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Abstract
It discloses a kind of signal multiplexing electronic circuit and applies its switch type regulator, by the time-sharing multiplex to circuit components, reduce the number of circuit components or circuit module, improve the utilization rate of circuit components；It meanwhile for integrated chip, also solves the problems, such as that pin resource is not enough, improves the utilization rate of pin resource, reduce the volume of circuit system and the manufacture cost of circuit system.
Description
Technical field
Opening the utility model is related to a kind of electronic circuit more particularly to a kind of signal multiplexing electronic circuit and using it
Pass type adjuster.
Background technology
The miniaturization of electronic product increasingly becomes a kind of trend, with the development of the communication technology, various electronic products
Design can face the processing of multi signal.For the electronic circuit of multi signal input and output, since signal to be treated is more, collection
Number of pins and peripheral components into chip also can accordingly increase, and on the one hand cause the volume of integrated chip to increase, and on the other hand collect
Increasing for discrete device into the increase and inevitable peripheral circuit of chip volume to include the entire of integrated chip
The volume increase of circuit system, can not be suitable for the electronic product of miniaturization, while also increase the manufacture cost of electronic circuit.
As shown in Figure 1, it realizes circuit diagram for a kind of existing electronic circuit with Multiinputoutput signal.Figure
Shown in electronic circuit include the chip 1 with multiple input output pin I/O and the peripheral circuit that is correspondingly connected with pin
2.Exemplified by wherein only with two input pins pin1, pin2 of chip, peripheral circuit 2 includes divider resistance R1、R2With outer connecting resistance
R3.Divider resistance R1And R2It is connected in series and receives input voltage Vsense, while its points of common connection A is connected to input pin pin1.
Chip 1 receives characterization input voltage V according to the input signal of input pin pin1senseDetectable voltage signals, to be transferred to core
Corresponding process circuit in piece 1.Outer connecting resistance R3It is connected to input pin pin2.Chip 1 will be external by input pin pin2
Resistance R3Introduce chip internal, at the same using its both end voltage or flow through its electric current and chip internal other circuits realize jointly
Certain signal processing function.
In this way, in above-mentioned electronic circuit by pin pin1 and pin2 realize respectively voltage division signal sampling and
External resistance value sampling, when so needing processing for multiple input output signal, the number of pins in electronic circuit will certainly increase
Add or even the not enough situation of number of pins occur, and each pin is correspondingly connected with different peripheral components, therefore can cause electricity
The volume increase of sub-circuit, increases cost, can not be suitable for miniaturization, the electronic product of low cost.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of signal multiplexing electronic circuit and applies its switching mode
Adjuster to realize the time-sharing multiplex to circuit components, reduces the number of circuit components or circuit module, improves circuit
The utilization rate of component, and further solve the problems, such as that chip pin resource is not enough, the utilization rate of pin resource is improved, is subtracted
The manufacture cost of the volume and electronic circuit of small integrated chip and circuit system.
In order to achieve the above objectives, the utility model provides a kind of signal multiplexing electronic circuit, is used to implement signal multiplexing, wraps
Include bleeder circuit, the first process circuit and second processing circuit.
The bleeder circuit includes the first resistor and second resistance that are connected in series, to receive input voltage signal, and
Detectable voltage signals are generated at the points of common connection of the first resistor and the second resistance.
First process circuit in the first time section in each cycle, to receive the detectable voltage signals,
And in the second time interval, the detectable voltage signals are kept.
The second processing circuit is in second time interval, receiving the detectable voltage signals, and generate
Characterize the detection signal of the resistance value of the second resistance；In the first time section, the detection signal is kept.
Preferably, first process circuit, including the first sampling switch and the first conversion circuit, in the first time
In section, the first sampling switch conducting, first conversion circuit receives the detectable voltage signals and generation first is defeated
Go out signal；In second time interval, first sampling switch disconnects, and the first conversion circuit keeps the detection voltage
Signal, and keep generating the first output signal.
Preferably, the second processing circuit, including the second sampling switch and the second conversion circuit, in second time
In section, the second sampling switch conducting, second conversion circuit receives the detectable voltage signals, and generates characterization institute
The detection signal of the resistance value of second resistance is stated, while generates the second output signal；In the first time section, the second sampling
Switch disconnects, and second conversion circuit keeps the detection signal, and keeps generating the second output signal.
Further, the time span in the first time section is more than second time interval.
Preferably, first conversion circuit includes the first capacitance, described in being received in the first time section
Detectable voltage signals simultaneously carry out energy storage, and the voltage detection signal is kept in second time interval.
Preferably, second conversion circuit includes sampling hold circuit, sample and stack circuit and current generating circuit, institute
Sampling hold circuit is stated to receive the detectable voltage signals；The sample and stack circuit is to by the detectable voltage signals
It is carried out with a reference voltage and computing, the current generating circuit is connected to the sampling hold circuit and sample and stack letter
Number, to generate and the relevant current signal of the ratio of the reference voltage and the second resistance.
Wherein, the current generating circuit includes first switch, and amplifier and sampling mirror image circuit, the first switch connect
It is connected between the positive and negative phase input terminal of the amplifier, the amplifier positive terminal receives the voltage detection signal and the base
The sum of quasi- voltage, negative-phase input receive the detectable voltage signals, and output terminal and negative phase end are connected to the sampling mirror image
Circuit, to generate the second output signal.
Wherein, the first switch is consistent with the switch motion of first sampling switch.
A kind of switch type regulator of foundation the utility model embodiment, including power stage circuit, wherein,
The input terminal of the bleeder circuit is connected with the power stage circuit, receives the current information of the power stage circuit
Or output voltage；
First process circuit and the second processing circuit are integrated in an integrated chip；
The input pin of the integrated chip is connected to the output terminal of the bleeder circuit, to receive the detection voltage
Signal controls the power stage electricity to generate corresponding control signal according to the detectable voltage signals and the detection signal
The state on road.
The input terminal of the bleeder circuit receive characterize the output voltage of the power stage circuit either output current or
The input signal of inductive current, the integrated chip generate PWM and control according to the detectable voltage signals and the detection signal
Signal controls the duty cycle of the power switch pipe of the power stage circuit.
The input terminal of the bleeder circuit receive characterize the output voltage of the power stage circuit either output current or
The input signal of inductive current, the integrated chip according to the detectable voltage signals and it is described detection signal come realize overvoltage or
Person's overcurrent protection.
Using the signal multiplexing electronic circuit of the utility model, by the time-sharing multiplex to circuit components, reduce circuit
The number of component or circuit module improves the utilization rate of circuit components；Meanwhile for integrated chip, also solve
The problem of pin resource is not enough improves the utilization rate of pin resource, reduces the manufacture of the volume and circuit system of circuit system
Cost.
Description of the drawings
Fig. 1 show a kind of schematic block diagram of electronic circuit with multi signal input and output according to the prior art；
Fig. 2 is the functional block diagram of the signal multiplexing electronic circuit according to one embodiment of the utility model；
Fig. 3 A are the functional block diagram of the signal multiplexing electronic circuit according to another embodiment of the utility model；
Fig. 3 B are the working waveform figure of the signal multiplexing electronic circuit of foundation the utility model embodiment shown in Fig. 3 A；
Fig. 4 is the functional block diagram of the switch type regulator of the embodiment according to the utility model；
Specific embodiment
Several preferred embodiments of the utility model are described in detail below in conjunction with attached drawing, but the utility model is not
It is only limited to these embodiments.The utility model cover any replacement made in the spirit and scope of the utility model, modification,
Equivalent method and scheme.In order to which the public is made to have thorough understanding to the utility model, it is preferably implemented in following the utility model
Concrete details is described in detail in example, and description without these details can also be managed completely for a person skilled in the art
Solve the utility model.
With reference to figure 2, the functional block diagram of the signal multiplexing electronic circuit according to the utility model first embodiment is shown.
In the embodiment, signal multiplexing electronic circuit 200 includes bleeder circuit 20, the first process circuit 21 and second processing circuit 22.
Bleeder circuit 20 includes the first resistor R being connected in series1, second resistance R2, to receive input voltage signal
Vsense, and in the first resistor R1With the second resistance R2Points of common connection A at generate detectable voltage signals Vd。
First process circuit 21 is in the first time section T in each cycleD1It is interior, receive detectable voltage signals Vd, and
In the second time interval TD2It is interior, keep detectable voltage signals Vd。
Second processing circuit 22 is in the second time interval TD2It is interior, receive detectable voltage signals Vd, and generate characterization
Two resistance R2Resistance value detection signal；In first time section TD1It is interior, keep the detection signal.
First time section TD1With the second time interval TD2Time span by external control signal VctrlIt is controlled, the
One time interval TD1Time span be more than the second time interval TD2。
First process circuit 21, which includes the first sampling switch 201 and the first conversion circuit 202, second processing circuit 22, to be included
Second sampling switch 203 and the second conversion circuit 204.
In each switch periods, the first sampling switch 201 and 203 on off state of the second sampling switch are not overlapped, for example,
When the first sampling switch 201 is in the conduction state, the second sampling switch 203 is off state.
Preferably, the first sampling switch 201 and 203 on off state of the second sampling switch can be complementary, and are believed by control
Number VctrlThe first sampling switch 201 and 203 turn-on and turn-off of the second sampling switch to be controlled to act.
In one implementation, as control signal VctrlFor low level when, i.e., in first time section TD1Interior, first adopts
201 conducting of sample switch, the first conversion circuit receive detectable voltage signals Vd, while generate the first output signal；Work as control signal
VctrlWhen becoming high level from low level, i.e., in the second time interval TD2Interior, the first sampling switch 201 disconnects, the first conversion electricity
Road keeps the detectable voltage signals Vd, and keep generating the first output signal.
As control signal VctrlFor high level when, i.e., in the second time interval TD2Interior, the second sampling switch 203 turns on, the
Two conversion circuits 204 receive detectable voltage signals, and generate characterization second resistance R2Resistance value detection signal, while generate the
Two output signals；As control signal VctrlWhen becoming low level by high level, i.e., in first time section TD1It is interior, the second conversion circuit
204 keep the detection signal, and keep generating the second output signal.
As it can be seen that using the signal multiplexing electronic circuit shown in Fig. 2 according to the utility model, realize to bleeder circuit
Time sharing sampling.Detectable voltage signals VdNot only characterize input voltage Vsense, and second resistance R can be characterized2Resistance value, so as to
Reduce an input terminal and an outer connecting resistance, improve second resistance R2Utilization rate, save the volume of electronic circuit
With manufacture cost.
The operation principle of the second embodiment of electronic circuit described further below according to the utility model.
With reference to figure 3A, the circuit theory of the signal multiplexing electronic circuit according to the utility model second embodiment is shown
Block diagram.
In this embodiment, first conversion circuit includes the first capacitance 302 and comparator 303 in the first process circuit 31.
The normal phase input end of wherein comparator 303 is connected to the first capacitance 302, and negative-phase input connects the first reference signal VREF1。
In this embodiment, second conversion circuit includes sampling hold circuit 305, sample and stack in second processing circuit 32
Circuit 306, first switch 307, amplifier 308 and sampling mirror image circuit 33.Wherein first switch 307 be placed in amplifier 308 just,
Between negative-phase input, the normal phase input end of amplifier 308 is connected to the output terminal of sample and stack circuit 306, and sampling keeps electricity
305 and second reference signal V of roadREF2It is connected to two input terminals of sample and stack circuit, the second sampling of negative-phase input connection
Switch 304.
Sampling mirror image circuit 33 includes second switch 309, the 3rd switch 310, the second capacitance 311, transistor 312 and crystal
Pipe 313, and be mosfet transistor.
With reference to figure 3B, the working waveform figure of the signal multiplexing electronic circuit of Fig. 3 A illustrated embodiments, each cycle are shown
First time section TD1It is interior, control signal VctrlFor low level, the first sampling switch 301 in the first process circuit 31 is led
It is logical, the detectable voltage signals V that comparator 303 receives normal phase input enddThe the first benchmark electricity received with negative-phase input
Press signal VREF1It is compared to obtain the first output signal；In the second time interval TD2It is interior, i.e. control signal VctrlBy low level
High level is reverted to, the first capacitance 302 keeps the detectable voltage signals Vd, therefore comparator 303 keeps generating described first
Export signal.
In the second time interval TD2Interior, the second sampling switch 304 turns on, and sample and stack circuit 306 will receive
Second reference signal VREF2With detectable voltage signals VdProgress and computing.The input voltage of the normal phase input end of amplifier 308 is
VREF2+Vd, the negative-phase input reception detectable voltage signals V of amplifier 308d, amplifier out and negative-phase input connect
Sampling mirror image circuit 33 is connected to, and its transistor 312 is controlled to generate electric current, it can thus be concluded that the electric current number flowed through in transistor 312
Value is as shown in formula (1)：
I=VREF2/R2 (1)
At this point, second switch 309 disconnects, 310 conducting of the 3rd switch, 313 mirror image of transistor obtains and flows through transistor 312
Identical the second output signal I of electric currentSEN。
In first time section TD1It is interior, i.e. control signal VctrlLow level, the second sampling switch 304 are reverted to by high level
It disconnects, the second switch 310 sampled in mirror image circuit 33 is closed, and transistor 312 turns off, and the second capacitance 311 ensures transistor 313
Gate source voltage, therefore transistor 313 keeps exporting the electric current I identical with the second time intervalSEN。
In the present embodiment, the first sampling switch 301, the second sampling switch 304, first switch 307, second switch 309
Turn-on and turn-off with the 3rd switch 310 are by control signal VctrlIt is controlled.Wherein the first sampling switch 301, first switch
307, the turn-on and turn-off state of the 3rd switch 310 is by control signal VctrlNon-signal VctrlControl, the second sampling switch 304
Turn-on and turn-off state with second switch 309 is by control signal VctrlControl, it is achieved thereby that time sharing sampling, ensure that each
The first stable output signal and the second output signal can be obtained in time interval.
The functional block diagram of the switch type regulator according to the utility model embodiment is shown with reference to figure 4.According to this practicality
A kind of switch type regulator of a new embodiment, including power stage circuit 41, bleeder circuit 42 and integrated circuit 43.
The power stage circuit 41 of the switch type regulator is according to the different connection sides of switching tube, rectifying tube, inductance, capacitance etc.
Formula can be the topological structure of different types of switch type regulator, such as voltage-dropping type, voltage boosting-reducing type, positive activation type and inverse-excitation type
Wait topological structures.In different realization methods, power tube or switching tube in power stage circuit 41 can also be integrated in integrated
In circuit 43.
In this embodiment, bleeder circuit 42 is connected with switching power grade circuit 41, the electricity of received power level circuit 41
Stream information or output voltage；The input pin pin4 of integrated circuit 43 carries out time sharing sampling to bleeder circuit 42, so as to according to institute
Current information, the output voltage of power stage circuit 41 are stated, corresponding first output letter is generated respectively in its output terminal out1, out2
Number and the second output signal, and input to power stage circuit 41.
The first output signal is received in power stage circuit 41, to realize overvoltage, overcurrent protection or driving power
The switch motion of power switch pipe in grade circuit；The second output signal is received in power stage circuit 41, to set work(
The working frequency of rate grade circuit 41 or as current source.
In this embodiment, the bleeder circuit 42 receives output electric signal (such as the electricity in characterization power stage circuit 41
Inducing current either output voltage or output current) detectable voltage signals.The input pin pin4 of integrated circuit 43 is connected to
The first resistor R of bleeder circuit 421With second resistance R1Points of common connection A.
In this embodiment, the input pin pin4 of integrated circuit 43 carries out bleeder circuit 42 time sharing sampling detection voltage
Signal Vd, corresponding first output signal and the second output signal, specific works mistake are generated respectively in its output terminal out1, out2
Journey is identical with the course of work of the signal multiplexing electronic circuit of the utility model first embodiment.
In this embodiment, integrated circuit 43 is used as control circuit, and the first process circuit 401 is generated in output terminal out1
First output signal may act on the power stage circuit 41.For example, when the input voltage of bleeder circuit 42 is power stage circuit
During 41 output voltage, pass through detectable voltage signals VdJudge whether that output voltage occurred with the comparative result of a reference voltage
Pressure；When detectable voltage signals are more than the reference voltage, represent that overvoltage occurs for output voltage, the first output signal passes through right at this time
The on off state control of power switch pipe in power stage circuit 41, come the energy cut off the power to the output terminal of power stage circuit 41
Amount is transferred, so as to complete overvoltage protection.
For another example when the input voltage of bleeder circuit 42 is the output voltage of power stage circuit 41, according to detection voltage
Signal VdWith the error result of the reference voltage of characterization desired output voltage, the first output signal passes through in power stage circuit 41
Power switch pipe on off state control, the control to the duty cycle of power switch pipe is realized, so that power stage circuit
Output voltage maintain the desired output voltage.
Similar, the difference for the detectable voltage signals that the first process circuit 401 is generated according to bleeder circuit 42, the first output
Signal is realizing overvoltage, overcurrent protection or the switch motion to power tube switching tube in driving power grade circuit 41.
The second output signal that second processing circuit 402 generates is according to second resistance R2Resistance value can also be used for the work(
The different disposal of rate grade circuit 41, such as working frequency to set power stage circuit 41 or as current reference etc..
Need to illustrate must to be that the identical device function of title is also identical between each embodiment of the utility model, and the property improved
Embodiment can be combined respectively with above-mentioned multiple embodiments, but while illustrating, only illustrates on the basis of a upper embodiment
It is bright.The relevant improvement that those skilled in the art are done on the basis of circuit disclosed in the utility model embodiment, also at this
Within the protection domain of utility model embodiment.
Above to according to the utility model preferred embodiment signal multiplexing electronic circuit and apply its switching mode
Adjuster is described in detail, and those of ordinary skill in the art can deduce other technologies or structure and circuit accordingly
Layout, element etc. can be applied to the embodiment.
Embodiment according to the utility model as described above, these embodiments there is no all details of detailed descriptionthe,
Also it is only the specific embodiment not limit the utility model.Obviously, as described above, many modification and change can be made
Change.This specification is chosen and specifically describes these embodiments, and being should in order to preferably explain the principle and reality of the utility model
With so that skilled artisan can repairing using the utility model and on the basis of the utility model well
Change use.The utility model is limited only by the claims and their full scope and equivalents.
Claims (11)
1. a kind of signal multiplexing electronic circuit, is used to implement signal multiplexing, which is characterized in that including, bleeder circuit, the first processing
Circuit and second processing circuit, wherein,
The bleeder circuit includes the first resistor and second resistance that are connected in series, receives input voltage signal, and described the
Detectable voltage signals are generated at one resistance and the points of common connection of the second resistance；
First process circuit, in the first time section in each cycle, to receive the detectable voltage signals, and
In second time interval, the detectable voltage signals are kept；
The second processing circuit in second time interval, receives the detectable voltage signals, and generates described in characterization
The detection signal of the resistance value of second resistance；In the first time section, the detection signal is kept.
2. signal multiplexing electronic circuit according to claim 1, which is characterized in that first process circuit includes first
Sampling switch and the first conversion circuit；
In the first time section, the first sampling switch conducting, first conversion circuit receives the detection electricity
Signal is pressed to generate the first output signal；In second time interval, first sampling switch disconnects, first conversion
Circuit keeps the detectable voltage signals, and keeps generating the first output signal.
3. signal multiplexing electronic circuit according to claim 1, which is characterized in that the second processing circuit includes second
Sampling switch and the second conversion circuit, in second time interval, the second sampling switch conducting, second conversion
Circuit receives the detectable voltage signals, and generates the detection signal for the resistance value for characterizing the second resistance, while generates second
Export signal；In the first time section, the second sampling switch disconnects, and second conversion circuit keeps the detection letter
Number, and keep generating the second output signal.
4. signal multiplexing electronic circuit according to claim 3, which is characterized in that the time in the first time section is long
Degree is more than second time interval.
5. signal multiplexing electronic circuit according to claim 2, which is characterized in that first conversion circuit includes first
Capacitance, to receive the detectable voltage signals in the first time section and carry out energy storage, in second time zone
It is interior to keep the detectable voltage signals.
6. signal multiplexing electronic circuit according to claim 3, which is characterized in that second conversion circuit includes sampling
Holding circuit, sample and stack circuit and current generating circuit；
The sampling hold circuit is receiving the detectable voltage signals；
The sample and stack circuit is the detectable voltage signals and a reference voltage to be carried out and computing；
The current generating circuit is connected to the sampling hold circuit and the sample and stack circuit, to generate and the base
Quasi- voltage and the relevant current signal of the ratio of the second resistance.
7. signal multiplexing electronic circuit according to claim 6, which is characterized in that the current generating circuit includes first
Switch, amplifier and sampling mirror image circuit；
The first switch is connected between the positive and negative phase input terminal of the amplifier, described in the amplifier positive terminal reception
The sum of detectable voltage signals and the reference voltage, negative-phase input receive the detectable voltage signals, output terminal and negative
End is connected to the sampling mirror image circuit, to generate the second output signal.
8. signal multiplexing electronic circuit according to claim 7, which is characterized in that the first switch is opened with the first sampling
The switch motion of pass is consistent.
9. a kind of switch type regulator, which is characterized in that electronic circuit is multiplexed including the either signal described in claim 1-8,
Power stage circuit is further included, wherein,
The input terminal of the bleeder circuit is connected with the power stage circuit, receives the current information or defeated of the power stage circuit
Go out voltage；
First process circuit and the second processing circuit are integrated in an integrated chip；
The input pin of the integrated chip is connected to the output terminal of the bleeder circuit, to receive the detection voltage letter
Number, control the power stage circuit to generate corresponding control signal according to the detectable voltage signals and the detection signal
State.
10. switch type regulator according to claim 9, which is characterized in that the input terminal of the bleeder circuit receives table
Levy the output voltage of the power stage circuit either output current or the input signal of inductive current, the integrated chip according to
The detectable voltage signals and the detection signal generate pwm control signal to control the power switch pipe of the power stage circuit
Duty cycle.
11. switch type regulator according to claim 9, which is characterized in that the input terminal of the bleeder circuit receives table
Levy the output voltage of the power stage circuit either output current or the input signal of inductive current, the integrated chip according to
The detectable voltage signals and it is described detection signal come realize overvoltage or overcurrent protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721045982.1U CN207426953U (en) | 2017-08-21 | 2017-08-21 | A kind of signal multiplexing electronic circuit and apply its switch type regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721045982.1U CN207426953U (en) | 2017-08-21 | 2017-08-21 | A kind of signal multiplexing electronic circuit and apply its switch type regulator |
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| Publication Number | Publication Date |
|---|---|
| CN207426953U true CN207426953U (en) | 2018-05-29 |
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ID=62314895
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721045982.1U Withdrawn - After Issue CN207426953U (en) | 2017-08-21 | 2017-08-21 | A kind of signal multiplexing electronic circuit and apply its switch type regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107493007A (en) * | 2017-08-21 | 2017-12-19 | 矽力杰半导体技术(杭州)有限公司 | A kind of signal multiplexing electronic circuit, method of signal multiplexing and apply its switch type regulator |
-
2017
- 2017-08-21 CN CN201721045982.1U patent/CN207426953U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107493007A (en) * | 2017-08-21 | 2017-12-19 | 矽力杰半导体技术(杭州)有限公司 | A kind of signal multiplexing electronic circuit, method of signal multiplexing and apply its switch type regulator |
| CN107493007B (en) * | 2017-08-21 | 2023-09-08 | 矽力杰半导体技术(杭州)有限公司 | Signal multiplexing electronic circuit, signal multiplexing method and switching regulator using same |
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Address after: 310051 No. 6 Lianhui Street, Xixing Street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) Co.,Ltd. Address before: 310012 room A1501, science and Technology Park, East Software Park, No. 90, Wensanlu Road, Zhejiang, China Patentee before: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) Co.,Ltd. |
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