CN208274315U - A kind of sensor circuit and the hair dryer based on sensor circuit - Google Patents
A kind of sensor circuit and the hair dryer based on sensor circuit Download PDFInfo
- Publication number
- CN208274315U CN208274315U CN201820872263.5U CN201820872263U CN208274315U CN 208274315 U CN208274315 U CN 208274315U CN 201820872263 U CN201820872263 U CN 201820872263U CN 208274315 U CN208274315 U CN 208274315U
- Authority
- CN
- China
- Prior art keywords
- switch
- contact
- sensor circuit
- power supply
- relay
- 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 - Fee Related
Links
Landscapes
- Cleaning And Drying Hair (AREA)
Abstract
The utility model discloses a kind of sensor circuit and based on the hair dryer of sensor circuit, wherein, sensor circuit includes power supply, contact-making switch, relay, operating switch and motor, and motor sequentially passes through operating switch, relay is connected to power supply, and contact-making switch connects power supply and relay；Power supply is used to power to contact-making switch, and when connecting with operating switch and operating switch is closed, powers to motor；Trigger signal is sent to relay for generating trigger signal when there is contact by contact-making switch；Relay is used to that operating switch to be connected to power supply when there is trigger signal input, and when trigger signal disappears, operating switch and power supply are disconnected.The utility model in sensor circuit by being arranged contact-making switch, when there is contact, contact-making switch closure is arranged on various devices in the sensor circuit, the operation of motor in equipment is controlled by the contact face contact with contact-making switch, so that the operation of equipment is more convenient.
Description
Technical field
The utility model relates to technical field of electrical equipment, in particular to a kind of sensor circuit and based on induction
The hair dryer of circuit.
Background technique
Hair dryer is common electric appliance in people's life, is mainly used for the drying and shaping of hair, is generally usually used in family
Life and barber shop.Pause is often turned off the switch during using hair dryer to use, and is opened again after a period of time
Pass is again turned on hair dryer, and continually toggle switch is very inconvenient in this way, meanwhile, the excessively high damage key that is easy to of switching frequency is opened
It closes.Therefore, traditional hair dryer is not convenient enough when in use.
Utility model content
The purpose of this utility model is to provide a kind of sensor circuit and based on the hair dryer of sensor circuit, electricity can be made
That dries is more convenient to use.
The utility model first aspect provides a kind of sensor circuit, including power supply, contact-making switch, relay, work are opened
Pass and motor；Wherein, the motor sequentially passes through the operating switch, the relay is connected to the power supply, described to connect
Touching switch connects the power supply and the relay；
The power supply is for giving contact-making switch power supply, and is connecting with the operating switch and the work is opened
When closing conjunction, power to the motor；
The trigger signal is sent to the relay for generating trigger signal when there is contact by the contact-making switch
Device；
The relay is used to that the operating switch to be connected to the power supply when there is trigger signal input, and
When the trigger signal disappears, the operating switch and the power supply are disconnected.
Optionally, the contact-making switch is capacitive touch-sensitive switch.
Optionally, the power supply is AC power source, and the sensor circuit further includes AC/DC changeover switch and rectification circuit,
The contact-making switch is connected to the AC power source by the AC/DC changeover switch, and the motor is connected by the rectification circuit
It is connected to the operating switch.
Optionally, the sensor circuit further includes current-limiting resistance, the current-limiting resistance be connected to the rectification circuit and
Between the AC power source.
Optionally, the rectification circuit is bridge rectifier.
Optionally, the sensor circuit further includes mode switch and heater, and the heater is opened by the mode
It closes and the operating switch is connected to the power supply, the mode switch is used for when the mode switch is in first position
The power supply and the heater are disconnected, and the heater is connected to institute when the mode switch is in the second position
State power supply.
Optionally, the sensor circuit is additionally provided with overheating protective element, the overheating protective element and the heater
Series connection, the overheating protective element disconnect the heater and the electricity for detecting the heater when the temperature is excessively high
The connection in source.
Optionally, the sensor circuit is additionally provided with diode, when the mode switch is in the third place, described two
The anode of pole pipe is connect with the heater.
The utility model second aspect also provides a kind of hair dryer based on sensor circuit, including hair dryer ontology and handle
Hand, the hair dryer ontology include sensor circuit described in first aspect, and the contact surface of the contact-making switch is arranged described
On handle.
Optionally, the handle is arranged in close to the outside of palm of the hand side in the contact surface of the contact-making switch.
Compared with prior art, the utility model has the following beneficial effects: by the way that contact-making switch is arranged in sensor circuit, having
When contact, contact-making switch closure, when not contacting, contact-making switch is disconnected, it is possible thereby to by whether connect with contact-making switch
Contacting surface contacts to control the operation of motor, which can be adapted in plurality of devices, such as hair dryer, electric drill etc.,
The sensor circuit is arranged on the handle of hair dryer can be when not holding handle, and motor does not work, when holding handle, motor weight
Working condition before newly returning to, so that the operation of various equipment is more convenient.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, alternative embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 shows a kind of circuit diagram of sensor circuit provided by the utility model；
Fig. 2 shows a kind of another circuit diagrams of sensor circuit provided by the utility model；
Fig. 3 shows a kind of another detailed circuit diagram of sensor circuit provided by the utility model；
Fig. 4 shows a kind of schematic diagram of hair dryer based on sensor circuit provided by the utility model.
Icon:
Power supply -10；Contact-making switch -20；Relay -30；Motor -40；Heater -50；Overheating protective element -60；It hands over straight
Stream transformer -102；Hair dryer ontology -70；Handle -80；The contact surface -201 of contact-making switch.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, can be directly connected, can also indirectly connected through an intermediary, can be with
It is the connection inside two elements.
With reference to the accompanying drawing, it elaborates to some embodiments of the utility model.In the absence of conflict, under
The feature in embodiment and embodiment stated can be combined with each other.
First embodiment
A kind of sensor circuit is present embodiments provided, refering to fig. 1, including power supply 10, contact-making switch 20, relay 30, work
Make switch S1 and motor 40；Wherein, motor 40 sequentially passes through operating switch S1, relay 30 is connected to power supply 10, and contact is opened
Close 20 connection power supplys 10 and relay 30；
Power supply 10 for give contact-making switch 20 power, and connect with operating switch S1 and operating switch S1 be closed
When, it powers to motor 40；
Trigger signal is sent to relay 30 for generating trigger signal when there is contact by contact-making switch 20；
Relay 30 is used to that operating switch S1 to be connected to power supply 10 when there is trigger signal input, and in trigger signal
When disappearance, operating switch S1 and power supply 10 are disconnected.
As can be seen that control of the work of motor 40 by contact-making switch 20 and operating switch S1, when above-mentioned two switch
Motor 40 could be connect with power supply 10 after being all closed.
Specifically, referring to Fig.2, contact-making switch 20, which is closed when there is contact and generates trigger signal, is sent to relay 30,
The trigger signal can be operating current, and relay 30 is connect with contact-making switch 20, the operating current stream that contact-making switch 20 exports
When crossing the coil of relay 30, operating switch S1 is connect by the output end of relay 30 with power supply 10, is disconnected in operating switch S1
When, motor 40 can not be connect with power supply 10 and then motor 40 does not work, and in operating switch S1 closure, motor 40 can pass through work
Make switch S1 and relay 30 is connected to power supply 10, therefore only there are two motors 40 when switch is all closed just to work.
In the above-mentioned technical solutions, by the way that contact-making switch is arranged in sensor circuit, when there is contact, contact-making switch is closed
It closes, when not contacting, contact-making switch disconnects, it is possible thereby to which by whether contact face contact with contact-making switch controls motor
Operation, which can be adapted in plurality of devices, such as hair dryer, electric drill etc., be arranged on the handle of hair dryer
The sensor circuit can be when not holding handle, and motor does not work, when holding handle, motor come back to before work shape
State, the sensor circuit make the operation of various equipment more convenient.
Optionally, which is capacitive touch-sensitive switch, when there is contact face contact of the object with contact-making switch 20
When, contact-making switch 20 can be closed, thus can be by whether controlling contact-making switch 20 with the contact face contact of contact-making switch 20
Be switched on or switched off, the capacitive touch-sensitive switch detection object be not limited to conductor, therefore can be used for detecting hand whether with connect
Contacting surface contact.
Optionally, refering to Fig. 2 and Fig. 3, above-mentioned power supply 10 can be AC power source, which can be Chinese Industrial Standards (CIS)
Line voltage 220V alternating current, sensor circuit further include AC/DC changeover switch 102 and rectification circuit, and contact-making switch 20 passes through friendship
Direct current transducer 102 is connected to AC power source, and motor 40 is connected to operating switch S1, AC/DC changeover switch by rectification circuit
Alternating current in AC power source is converted to direct current by 102 is supplied to contact-making switch 20, due to relay 30 and contact-making switch 20
It is connected, therefore has operating current to flow through in relay 30 when contact-making switch 20 is closed, so that the output end of relay 30 controls
Connect corresponding circuit.
Further, the input terminal of rectification circuit is connect with operating switch S1, and output end is connect with motor 40, rectification circuit
Direct current, 40 work of power supply machine are converted alternating current to when operating switch S1 is closed and operating switch S1 is connect with AC power source
Make.
Since currently used electric power resource is alternating current 220V alternating current, AC/DC changeover switch is set in the sensor circuit
102 and rectification circuit come convert alternating current to direct current come power supply machine 40 work so that the adaptability of the sensor circuit is more
Extensively.
Optionally, rectification circuit can be bridge rectifier, be rectified using the one-way conduction of diode, use
In the alternating current in AC power source is converted to direct current.
Specifically, which includes four diodes, and the anode of diode VD1 is connect with operating switch S1,
The cathode of diode VD2 is connect with the cathode of diode VD1, and the cathode of diode VD3 is connect with operating switch S1, diode
The anode of VD4 is connect with the anode of diode VD3, and the cathode of diode VD4 is connect with the anode of diode VD2.
Optionally, sensor circuit further includes current-limiting resistance R, and current-limiting resistance R can connect to be opened in rectification circuit and work
Close S1 between, also can connect between rectification circuit and relay 30, so by relay 30 be connected to power supply 10 with it is whole
Between current circuit, for limiting the size of branch current, prevent electric current is excessive from burning out circuit devcie.
Optionally, relay 30 can be the integrated module of No. 2 relays, can also be made of two relays, two
It is connect after the coil series connection of relay with contact-making switch 20, the output end and power supply 10 and operating switch S1 of two relays connect
It connects, when having electric current to flow through in the coil of relay 30, operating switch S1 is connected to power supply 10, for example, being to hand in power supply 10
When galvanic electricity source, the connection type of two relays can be the common end connection AC power source of the first relay in two relays
Zero curve, one end of the normal opened contact connection motor 40 of the first relay, the common end of the second relay in two relays
The firewire of AC power source is connected, the normal opened contact of the second relay passes through the other end of operating switch S1 connection motor 40, therefore,
When flowing through operating current in the coil of two relays, the common end of the first relay and the normal opened contact of the first relay are closed
It closes, the normal opened contact of the common end of the second relay and the second relay is closed, and motor 40 is connected to power supply 10.
Optionally, which further includes mode switch S2 and heater 50, and heater 50 passes through mode switch S2
And operating switch S1 is connected to power supply 10, there are three positions to select for mode switch S2 tool, when mode switch S2 is in position 1
The connection of heater 50 and operating switch S1 is disconnected, so that heater 50 does not access circuit, when being in position 2 by heater 50
It is connect with operating switch S1, heater 50 is allowed to be connected to power supply 10 by operating switch S1, heater 50 just may be used at this time
With work.
In above-mentioned technical proposal, it whether can control by Setting pattern switch S2 by the access circuit of heater 50, make
It must operate more humanized.
Optionally, sensor circuit is additionally provided with diode VD5, and the anode of diode VD5 is connect with heater 50, in mode
When switch S2 is in position 3, diode VD5 is connect with the concatenated branch of heater 50 with AC power source, due to the list of diode
To conduction, the continually changing alternating current in direction after diode VD5 only have half period in there is electric current to flow through fever
Device 50, in addition half period is hindered by diode VD5, therefore the heating temperature of heater 50 reduces.
Optionally, sensor circuit is additionally provided with overheating protective element 60, and overheating protective element 60 is connected with heater 50, mistake
Thermal protective element 60 disconnects the connection of heater 50 and power supply 10, therefore can for detecting heater when the temperature is excessively high
The safety for ensureing the sensor circuit device prevents the damage of device at too high a temperature, is able to extend the service life of device.
Second embodiment
Present embodiments provide a kind of hair dryer based on sensor circuit, including hair dryer ontology 70, handle 80 and
The contact surface 201 of the sensor circuit provided in one embodiment, the contact-making switch 20 in sensor circuit is arranged on handle 80, is in one's hands
Firmly when the handle 80 of hair dryer, contact-making switch 20 is closed, then stirring operating switch S1 is closed S1, and motor 40 passes through work at this time
Switch S1 and relay 30 are connected on power supply 10, and motor 40 drives the fan rotation in hair dryer ontology 70, blowout after working
Cold wind.
It should be appreciated that further including the devices such as fan, wind deflector, remaining internal structure category of hair dryer in hair dryer ontology 70
In the prior art, it is not described in detail herein.
There are four types of operating modes for the hair dryer tool based on sensor circuit in above-mentioned technical proposal, specific as follows:
Operating mode 1: close pattern disconnects operating switch S1, and the motor 40 and heater 50 in sensor circuit are all
It is not connectable to power supply 10, hair dryer is in close pattern at this time.
Operating mode 2: operating switch S1 is closed by cool wind mode, the motor 40 in sensor circuit by relay 30 with
Power supply 10 connects, and in the handle 80 for holding hair dryer, when contact-making switch 20 is closed, motor 40 is connected to power supply by relay 30
10, if mode switch S2 is in position 1 at this time, heater 50 is not accessed in circuit, and the wind of blowout is then cold wind.
Operating mode 3: operating switch S1 is closed by high temperature mode, and when contact-making switch 20 is also closed, the mode of stirring is opened
S2 is closed to position 2, heater 50 is connected to power supply 10 by mode switch S2 at this time, and heater 50 is begun to warm up, due to work
Switch S1 closure, motor 40 control fan rotation, and the wind produced by boasting at this time is the higher hot wind of temperature.
Operating mode 4: operating switch S1 is closed by low temperature mode, and when contact-making switch 20 is also closed, the mode of stirring is opened
S2 is closed to position 3, heater 50 and the concatenated branch of diode VD5 are connected to power supply 10 by mode switch S2 at this time, in electricity
When blowing uses AC power source, diode VD5 can carry out halfwave rectifier to alternating current, so that the temperature that heater 50 heats
Degree reduces, and since operating switch S1 is closed, motor 40 controls fan rotation, and the wind produced by boasting at this time is the lower hot wind of temperature.
In hair dryer work in cool wind mode, low temperature mode and high temperature mode, when the palm of the hand leaves the handle of hair dryer
80, the contact-making switch 20 in sensor circuit disconnects, and does not have operating current to flow through in relay 30, hair dryer can stop work at this time
Make, when the palm of the hand is contacted again the contact surface 201 of contact-making switch 20, relay 30 will reclose power supply 10, and hair dryer can be with
Operating mode before continuing back at.
Optionally, handle is arranged in close to the outside of palm of the hand side, the contact surface of the palm of the hand in the contact surface 201 of contact-making switch 20
More larger than the contact surface of finger, the outside for being positioned close to palm of the hand side can agree with appearance of the people using hair dryer when well
Gesture and habit.
In use, hairdresser is often not related to hair dryer and just arbitrarily places it traditional hair dryer, hair dryer one
Straight in running order, because radiating, the unsmooth temperature that will lead to is increased, and hair dryer service life is caused to decline, meanwhile, hair dryer is attached
Nearly such as live wire, may result in insulating layer and is melted, cause electric shock accidents；On the other hand, hairdresser is put again after closing power supply
It sets, will use again after a period of time, frequent toggle switch is very inconvenient, and switching frequency is excessively high in addition, is easily damaged key switch.
Hair dryer provided in this embodiment based on sensor circuit, by the contact for the contact-making switch being arranged on handle
Face, when the palm of the hand leaves the handle of hair dryer, contact-making switch is disconnected, and motor stops working, and holds hair dryer again in the palm of the hand
When handle, contact-making switch closure, motor return to again before working condition, it is easy to operate, also avoid switch
Frequently stir.
The foregoing is merely the alternative embodiments of the utility model, are not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of sensor circuit, which is characterized in that including power supply, contact-making switch, relay, operating switch and motor；Wherein,
The motor sequentially passes through the operating switch, the relay is connected to the power supply, and the contact-making switch connects the electricity
Source and the relay；
The power supply is used for: being powered, and is being connect with the operating switch and the operating switch to the contact-making switch
When closure, power to the motor；
The trigger signal is sent to the relay for generating trigger signal when there is contact by the contact-making switch；
The relay is used to that the operating switch to be connected to the power supply when there is trigger signal input, and in institute
When stating trigger signal disappearance, the operating switch and the power supply are disconnected.
2. sensor circuit according to claim 1, which is characterized in that the contact-making switch is capacitive touch-sensitive switch.
3. -2 described in any item sensor circuits according to claim 1, which is characterized in that the power supply is AC power source, described
Sensor circuit further includes AC/DC changeover switch and rectification circuit, and the contact-making switch is connected to by the AC/DC changeover switch
The AC power source, the motor are connected to the operating switch by the rectification circuit.
4. sensor circuit according to claim 3, which is characterized in that the sensor circuit further includes current-limiting resistance, described
Current-limiting resistance is connected between the rectification circuit and the AC power source.
5. sensor circuit according to claim 3, which is characterized in that the rectification circuit is bridge rectifier.
6. sensor circuit according to claim 1, which is characterized in that the sensor circuit further includes mode switch and hair
Hot device, the heater are connected to the power supply by the mode switch and the operating switch, and the mode switch is used
It is in disconnecting the power supply and the heater when the mode switch is in first position, and in the mode switch
The heater is connected to the power supply when second position.
7. sensor circuit according to claim 6, which is characterized in that the sensor circuit is additionally provided with overheating protection member
Part, the overheating protective element are connected with the heater, and the overheating protective element is for detecting the heater temperature
When spending high, the connection of the heater Yu the power supply is disconnected.
8. sensor circuit according to claim 6, which is characterized in that the sensor circuit is additionally provided with diode, in institute
When stating mode switch and being in the third place, the anode of the diode is connect with the heater.
9. a kind of hair dryer based on sensor circuit, which is characterized in that including hair dryer ontology and handle, the hair dryer sheet
Body includes such as described in any item sensor circuits of claim 1-8, and the contact surface of the contact-making switch is arranged on the handle.
10. hair dryer according to claim 9, which is characterized in that the contact surface of the contact-making switch is arranged at described
Outside of the hand close to palm of the hand side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820872263.5U CN208274315U (en) | 2018-06-06 | 2018-06-06 | A kind of sensor circuit and the hair dryer based on sensor circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820872263.5U CN208274315U (en) | 2018-06-06 | 2018-06-06 | A kind of sensor circuit and the hair dryer based on sensor circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208274315U true CN208274315U (en) | 2018-12-25 |
Family
ID=64705992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820872263.5U Expired - Fee Related CN208274315U (en) | 2018-06-06 | 2018-06-06 | A kind of sensor circuit and the hair dryer based on sensor circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208274315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938472A (en) * | 2019-04-10 | 2019-06-28 | 深圳市奋达科技股份有限公司 | A kind of blowing apparatus and hair dryer |
| CN115356966A (en) * | 2022-08-30 | 2022-11-18 | 九牧厨卫股份有限公司 | Hair drier, control circuit thereof and blowing device |
-
2018
- 2018-06-06 CN CN201820872263.5U patent/CN208274315U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938472A (en) * | 2019-04-10 | 2019-06-28 | 深圳市奋达科技股份有限公司 | A kind of blowing apparatus and hair dryer |
| CN109938472B (en) * | 2019-04-10 | 2021-08-27 | 深圳市奋达科技股份有限公司 | Blowing equipment and blower |
| CN115356966A (en) * | 2022-08-30 | 2022-11-18 | 九牧厨卫股份有限公司 | Hair drier, control circuit thereof and blowing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104901661B (en) | Power transmission device with overload protection and energy-saving mechanism | |
| CN208274315U (en) | A kind of sensor circuit and the hair dryer based on sensor circuit | |
| CN208112227U (en) | A kind of electric hair drier control circuit of high reliability | |
| CN205583666U (en) | Use zero passage protection circuit on electric airer | |
| CN206452295U (en) | A kind of power protecting circuit and power supply | |
| CN106298365A (en) | A kind of control relay circuit and relay | |
| CN104578743A (en) | Power supply control circuit | |
| CN208674890U (en) | A kind of alternating current-direct current detection automatic switchover load circuit | |
| CN201134946Y (en) | Main power tube controlling circuit | |
| WO2017190295A1 (en) | Automatic voltage switching circuit and electric hair drier | |
| CN201479393U (en) | Circuit by utilizing bi-directional silicon controlled rectifier to control MCH heating body | |
| CN109617470A (en) | The control system of hair dryer | |
| CN105807669B (en) | A kind of voltage automatic switch-over circuit and hair dryer | |
| CN212935568U (en) | Intelligent auxiliary switch | |
| KR101657228B1 (en) | Apparatus for controlling stand-by power of air conditioner | |
| CN209898564U (en) | Electric hair drier and control circuit thereof | |
| CN204363223U (en) | A kind of slip controls hair dryer | |
| CN208796128U (en) | A kind of PTC ceramics piece temperature control circuit and heating equipment | |
| CN206674226U (en) | Circuit system and cooking apparatus for IH heaters | |
| CN206099305U (en) | Compressor and drive circuit thereof | |
| CN107342661A (en) | Magnetic Sensor integrated circuit, electric machine assembly and application apparatus | |
| CN207491225U (en) | Heat-preservation control circuit and electric heating equipment | |
| CN218866332U (en) | Control circuit of heating device | |
| CN207691778U (en) | A kind of skin care device | |
| CN201039545Y (en) | A power limited circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20200606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |