CN208691605U - The ON-OFF control circuit of LED - Google Patents
The ON-OFF control circuit of LED Download PDFInfo
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- CN208691605U CN208691605U CN201821203732.0U CN201821203732U CN208691605U CN 208691605 U CN208691605 U CN 208691605U CN 201821203732 U CN201821203732 U CN 201821203732U CN 208691605 U CN208691605 U CN 208691605U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model provides the ON-OFF control circuit of LED a kind of, comprising: touch-switch, a bistable circuit, metal-oxide-semiconductor switch and an output end；Bistable circuit includes the first triode, the second triode；Switch includes control terminal, the first terminals, the second terminals；The base stage of first triode and the base stage of the second triode are electrically connected with one end of touch-switch, and the other end of touch-switch is electrically connected with ground terminal；The emitter of the emitter of first triode and the second triode is electrically connected with ground terminal；The collector of the collector of first triode and the second triode is electrically connected with power end；The collector of first triode is also electrically connected with the control terminal of switch, and the first terminals of switch are electrically connected with power end, and the second terminals of switch are electrically connected with output end.The utility model realizes the overturning of output signal using bistable circuit, to realize the switch control of LED using lower cost.
Description
Technical field
The utility model relates to LED (light emitting diode) technical field of switch control, in particular to the switch controls of a kind of LED
Circuit processed.
Background technique
Indicator light of the LED as the electronic device works state is usually provided on home electronics.In some occasions,
User wishes to close LED light when electronic device works.In the prior art, for controlling LED light switch
Hardware switch reverse circuit constituted using phase inverter and d type flip flop (a kind of trigger), higher cost, area occupied it is big and
Control mode is inflexible.
Utility model content
The technical problems to be solved in the utility model is the cost mistake in order to overcome the LED switch control device of the prior art
The defect high, area occupied is big and control mode is inflexible, provides the ON-OFF control circuit of LED a kind of.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of ON-OFF control circuit of LED, comprising: touch-switch, a bistable circuit, a metal-oxide-semiconductor (metal-oxide-
Semiconductor field) it switchs and an output end；
Bistable circuit includes the first triode, the second triode；Switch connects including control terminal, the first terminals, second
Line end；
The base stage of first triode and the base stage of the second triode are electrically connected with one end of touch-switch, touch-switch
The other end is electrically connected with ground terminal；The emitter of the emitter of first triode and the second triode is electrically connected with ground terminal；
The collector of the collector of first triode and the second triode is electrically connected with power end；
The collector of first triode is also electrically connected with the control terminal of switch, and the first terminals and the power end of switch are electrically connected
It connects, the second terminals of switch are electrically connected with output end, and output end is for opening or closing LED.
Preferably, switch includes PMOS (P-Metal-Oxide-Semiconductor, p-type metal-oxide-partly lead
Body) field-effect tube, the grid of PMOS field-effect tube as control terminal, the source electrode of PMOS field-effect tube as the first terminals,
The drain electrode of PMOS field-effect tube is as the second terminals.
Preferably, bistable circuit further include first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance,
6th resistance, first capacitor, the second capacitor；
The base stage of first triode is electrically connected with one end of one end of first resistor and first capacitor simultaneously, first resistor
The other end and the other end of first capacitor are electrically connected with the collector of the second triode；The collector of second triode passes through the
Three resistance are electrically connected with power end；The base stage of first triode also passes through second resistance and is electrically connected with ground terminal；Second triode
Base stage be electrically connected simultaneously with one end of one end of the 5th resistance and the second capacitor, the other end of the 5th resistance and the second capacitor
The other end is electrically connected with the collector of the first triode；The collector of first triode is electrically connected by the 4th resistance with power end
It connects；The base stage of second triode also passes through the 6th resistance and is electrically connected with ground terminal.
Preferably, the ON-OFF control circuit of LED further includes the 7th resistance, the 8th resistance, third capacitor, the 4th capacitor,
Five capacitors；The base stage of first triode is electrically connected with one end of the 4th capacitor, the other end of the 4th capacitor simultaneously with third capacitor
One end, one end of the 7th resistance, one end of the 8th resistance, the 5th capacitor one end electrical connection, the other end of the 5th capacitor with
The base stage of second triode is electrically connected, and the other end of the 8th resistance is electrically connected with one end of touch-switch, third capacitor it is another
End is electrically connected with ground terminal, and the other end of the 7th resistance is electrically connected with power end.
Preferably, the 7th resistance is 1-1.5 megaohms (Mohm), third capacitor is 22-33 nanofarad (nF).
Preferably, the ON-OFF control circuit of LED further includes the 9th resistance, the tenth resistance, eleventh resistor；
One end of 9th resistance is electrically connected with the collector of the first triode, and the other end of the 9th resistance is electric with the tenth simultaneously
One end electrical connection of one end of resistance, eleventh resistor, the other end of the tenth resistance are electrically connected with power end, eleventh resistor it is another
One end is electrically connected with control terminal.
Preferably, the ON-OFF control circuit of LED further includes the 6th capacitor, the 7th capacitor, the 8th capacitor；
One end of 6th capacitor is electrically connected with one end of touch-switch, the other end of the 6th capacitor and touch-switch it is another
End electrical connection；One end of 7th capacitor and one end of the 8th capacitor are electrically connected with the second terminals, the other end of the 7th capacitor
It is electrically connected with ground terminal with the other end of the 8th capacitor.
Preferably, the conducting resistance of touch-switch is less than 50 milliohms.
Preferably, the output end of the ON-OFF control circuit of LED is electrically connected with the anode of LED.
The positive effect of the utility model is: the ON-OFF control circuit of the LED is realized defeated using bistable circuit
The overturning of signal out, the bistable electro route 2 triodes and constitute, save circuit resource, reduce area occupied, using compared with
Low cost realizes the switch control of LED.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ON-OFF control circuit of the LED of a preferred embodiment of the utility model.
Specific embodiment
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
A kind of ON-OFF control circuit of LED, comprising: touch-switch SW1, a bistable circuit BC, a metal-oxide-semiconductor switch K1 and
One output end O1；Bistable circuit BC includes the first triode Q1, the second triode Q2；Metal-oxide-semiconductor switch K1 includes control terminal
CON, the first terminals P1, the second terminals P2；The base stage of first triode Q1 is electrically connected with one end of the 4th capacitor C4, and second
The base stage of triode Q2 is electrically connected with one end of the 5th capacitor C5, the other end of the 4th capacitor C4 and the other end of the 5th capacitor C5
It is electrically connected and is electrically connected simultaneously with one end of the 8th resistance R8, the other end of the 8th resistance R8 and one end electricity of touch-switch SW1
Connection, the other end of touch-switch SW1 are electrically connected with ground terminal GND；The emitter of first triode Q1 and the second triode Q2
Emitter be electrically connected with ground terminal GND；The collector of first triode Q1 is electrically connected by the 4th resistance R4 and power end VCC
It connects, the collector of the second triode Q2 is electrically connected by 3rd resistor R3 with power end VCC；The collector of first triode Q1 is logical
It crosses the 9th resistance R9 to be electrically connected with the cascaded structure of eleventh resistor R11 with the control terminal CON of metal-oxide-semiconductor switch K1, metal-oxide-semiconductor switch
The first terminals of K1 are electrically connected with power end VCC, and the second terminals of metal-oxide-semiconductor switch K1 are electrically connected with output end O1, output
End O1 is for opening or closing controlled light emitting diode.When it is implemented, referring to Fig.1, output end O1 shines two with controlled respectively
The cathode of the anode electrical connection of pole pipe LED1, LED2, LED3 ... LEDn, LED1 passes through the control of resistance R12 and one signal LED_
The cathode of Control1 electrical connection, LED2 is electrically connected by resistance R13 with a control signal LED_Control2, the cathode of LED3
Signal LED_Control3 is controlled with one by resistance R14 to be electrically connected ... the cathode of LEDn pass through the control signal of resistance Rn and one
LED_Controln electrical connection.First triode Q1, the second triode Q2 are NPN (N-type-p-type-N-type) triode.
In order to reduce cost, referring to Fig.1, metal-oxide-semiconductor switch K1 includes the grid of PMOS field-effect tube Q3, PMOS field-effect tube Q3
Pole is as control terminal CON, drain electrode conduct of the source electrode of PMOS field-effect tube Q3 as the first terminals P1, PMOS field-effect tube Q3
Second terminals P2.PMOS field-effect tube Q3 includes a parasitic diode.When control terminal CON receives a high level signal
(voltage of power end VCC is 3.3 volts, and those skilled in the art understand the electricity of high level signal, low level signal under the voltage domain
Press range) when, PMOS field-effect tube Q3 conducting, metal-oxide-semiconductor switch K1 is in closed state；When control terminal CON receives a low electricity
When ordinary mail, PMOS field-effect tube Q3 cut-off, metal-oxide-semiconductor switch K1 is in an off state.
In order to improve the anti-interference ability of the bistable circuit, false triggering caused by voltage dithering is avoided, it is referring to Fig.1, double
Steady-state circuit BC further includes first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th electricity
Hinder R6, first capacitor C1, the second capacitor C2；The base stage of first triode Q1 while one end with first resistor R1 and first capacitor
One end of C1 is electrically connected, the collector of the other end of first resistor R1 and the other end of first capacitor C1 with the second triode Q2
Electrical connection；The collector of second triode Q2 is electrically connected by 3rd resistor R3 with power end；The base stage of first triode Q1 is also
It is electrically connected by second resistance R2 with ground terminal；The base stage of second triode Q2 is electric with one end of the 5th resistance R5 and second simultaneously
The one end for holding C2 is electrically connected, current collection of the other end of the other end of the 5th resistance R5 and the second capacitor C2 with the first triode Q1
Pole electrical connection；The collector of first triode Q1 is electrically connected by the 4th resistance R4 with power end；The base stage of second triode Q2
Also it is electrically connected by the 6th resistance R6 with ground terminal.First resistor R1 is preferably Chip-R, selects a kind of 0402 encapsulation (encapsulation
Type), resistance value is 33.2 kilo-ohms, and resistance value tolerance is ± 1%；Second resistance R2 and the 6th resistance R6 is preferably patch electricity
0402 encapsulation is selected in resistance, and resistance value is 22.6 kilo-ohms, and resistance value tolerance is ± 1%；3rd resistor R3 and the 4th resistance R4 are preferable
For Chip-R, 0402 encapsulation is selected, resistance value is 4.75 kilo-ohms, and resistance value tolerance is ± 1%；5th resistance R5 is preferably pasted
Sheet resistance selects 0402 encapsulation, and resistance value is 61.9 kilo-ohms, and (resistance value of the 5th resistance R5 should be greater than the resistance of first resistor R1
Value, and the difference of the two should be not less than 20 kilo-ohms), resistance value tolerance is ± 1%；First capacitor C1 and the second capacitor C2 are preferably
Ceramic condenser, capacitance are 470 pico farads (pF), and pressure voltage (maximum voltage value that capacitor is able to bear) is 50 volts.
Further, the conducting resistance of touch-switch SW1 is less than 50 milliohms.Referring to Fig.1, the ON-OFF control circuit of the LED
It further include the 7th resistance R7, the 8th resistance R8, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5；The base of first triode Q1
Pole is electrically connected with one end of the 4th capacitor C4, the other end of the 4th capacitor C4 while one end with third capacitor C3, the 7th resistance
One end electrical connection of one end of R7, one end of the 8th resistance R8, the 5th capacitor C5, the other end of the 5th capacitor C5 and the two or three pole
The base stage of pipe Q2 is electrically connected, and the other end of the 8th resistance R8 is electrically connected with one end of touch-switch SW1, and third capacitor C3's is another
End is electrically connected with ground terminal, and the other end of the 7th resistance R7 is electrically connected with power end.7th resistance R7, it is constituted with third capacitor C3
RC circuit (resistance-capacitance circuit) time constant, can be adjusted according to the working condition of actual circuit.In order to guarantee the 7th
Resistance R7, match with the time constant of the third capacitor C3 RC circuit constituted and the frequency deviation of manpower touch touch-switch SW1, with
Switch with guaranteeing the output state smooth steady of the bistable circuit, the range of the resistance value of the 7th resistance R7 is preferably 1-1.5
Megaohm, the range of the capacitance of third capacitor C3 is preferably 22-33 nanofarad.In the present embodiment, the 7th resistance R7 uses patch
Resistance, resistance value are 1 megaohm, and resistance value tolerance is ± 1%；Third capacitor C3 uses ceramic condenser, and capacitance is 22 nanofarads, resistance to
Pressure value is 50 volts.8th resistance R8 is preferably Chip-R, and resistance value is 100 Europe, and resistance value tolerance is ± 1%；4th capacitor
C4 and the 5th capacitor C5 is preferably ceramic condenser, and capacitance is 220 pico farads, and pressure voltage is 50 volts.
In order to provide stable control voltage to metal-oxide-semiconductor switch K1, referring to Fig.1, the ON-OFF control circuit of the LED further includes
9th resistance R9, the tenth resistance R10, eleventh resistor R11；The collector of one end of 9th resistance R9 and the first triode Q1 electricity
The other end of connection, the 9th resistance R9 is electrically connected with one end of one end of the tenth resistance R10, eleventh resistor R11 simultaneously, and the tenth
The other end of resistance R10 is electrically connected with power end, and the other end of eleventh resistor R11 is electrically connected with control terminal.9th resistance R9
Resistance value be preferably 1 kilo-ohm, resistance value tolerance is that the resistance value of the ± 1%, the tenth resistance R10 is preferably 4.75 kilo-ohms, resistance
Being worth tolerance is ± 1%；The resistance value of eleventh resistor R11 is preferably 33 Europe, and resistance value tolerance is ± 1%.
Referring to Fig.1, the ON-OFF control circuit of the LED further includes the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8；The
One end of six capacitor C6 is electrically connected with one end of touch-switch SW1, the other end of the 6th capacitor and the other end of touch-switch SW1
Electrical connection；One end of 7th capacitor and one end of the 8th capacitor are electrically connected with the second terminals, the other end of the 7th capacitor and
The other end of 8th capacitor is electrically connected with ground terminal.6th capacitor C6 is filter capacitor, is sent out on touch-switch SW1 for filtering out
The extremely short false triggering of raw time.7th capacitor C7, the 8th capacitor C8 are load capacitance.6th capacitor C6 and the 8th capacitor C8 compared with
Good is ceramic condenser, and capacitance is 0.1 microfarad (μ F), and pressure voltage is 50 volts；7th capacitor C7 is preferably ceramic condenser, capacitance
For 1 microfarad, pressure voltage is 10 volts, using a kind of 0603 encapsulation (encapsulated type).
Referring to Fig.1, the first triode Q1 and the second triode Q2 forms a bistable circuit, and bistable circuit has mutual
Lock function, then the second triode Q2 ends for the first triode Q1 conducting；Correspondingly, the first triode Q1 cut-off then the two or three pole
Pipe Q2 conducting.
After the ON-OFF control circuit of the LED of the present embodiment powers on, the voltage of power end VCC reaches 3.3 volts, power end VCC
Starting impulse is generated by the 7th resistance R7, third capacitor C3, which is coupled by the 4th capacitor C4, the 5th capacitor C5
To the base stage of the first triode Q1, the second triode Q2.Because of the differentiation direct current biasing of the first triode Q1, the second triode Q2
Resistance setting, is connected the first triode Q1 at first.First triode Q1, the second triode Q2 are interlocking-type connection type, the
One triode Q1 conducting ends the second triode Q2, the output end (i.e. the collector of the first triode Q1) of the bistable circuit
Output is low level.The low level of bistable circuit output gives the grid of PMOS field-effect tube Q3, makes PMOS field-effect tube Q3
Gate source voltage Vgs > -2.5V (it will be appreciated by those skilled in the art that negative sign herein is for indicating direction, comparison voltage
When size, absolute value should be compared), then PMOS field-effect tube Q3 is connected.Power end VCC passes through PMOS field-effect tube
The drain electrode (i.e. the output end O1 of the ON-OFF control circuit of the LED) of Q3 provides high level letter to the anode of LED1 ... LEDn
Number.At this point, if LED1 is lighted when control signal LED_Control1 is low level；If as control signal LED_
Control1 is high level, then LED1 extinguishes.Other controlled light emitting diodes are similar, repeat no more.
When pressing touch-switch SW1, third capacitor C3 discharge rapidly, discharge pulse passes through the 4th capacitor C4, the 5th capacitor
C5 gives the base stage of the first triode Q1, the second triode Q2, ends the first triode Q1, the second triode Q2 is originally
Off state.But the first triode Q1 end, because the first triode Q1, the second triode Q2 be interlocking-type connection type, first
The second triode Q2 is connected in triode Q1 cut-off, and the output end (i.e. the collector of the first triode Q1) of the bistable circuit is defeated
It is out high level.The high level of bistable circuit output gives the grid of PMOS field-effect tube Q3, makes PMOS field-effect tube Q3's
Gate source voltage Vgs=0V, PMOS field-effect tube Q3 cut-off.Then drain electrode (the i.e. switch control electricity of the LED of PMOS field-effect tube Q3
The output end O1 on road) to LED1 ... LEDn anode provide a low level signal.At this point, no matter controlling signal LED_
Control1 etc. is low level or high level, and LED1 ... LEDn is in OFF state, that is, all controlled light emitting diodes
It is closed.
When again press touch-switch SW1, bistable circuit be flipped again (working condition of each circuit element with should
It is similar when the ON-OFF control circuit of LED powers on, repeat no more), drain electrode (the i.e. switch control of the LED of PMOS field-effect tube Q3
The output end O1 of circuit) to LED1 ... LEDn anode provide a high level signal.
The ON-OFF control circuit of the LED of the present embodiment realizes the overturning of output signal using bistable circuit, to use
Lower cost realizes the switch control of LED.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the protection scope of the utility model.
Claims (9)
1. a kind of ON-OFF control circuit of LED characterized by comprising touch-switch, a bistable circuit, metal-oxide-semiconductor switch
With an output end；
The bistable circuit includes the first triode, the second triode；The switch includes control terminal, the first terminals, the
Two terminals；
The base stage of first triode and the base stage of second triode are electrically connected with one end of the touch-switch, institute
The other end for stating touch-switch is electrically connected with ground terminal；The transmitting of the emitter of first triode and second triode
Extremely it is electrically connected with the ground terminal；The collector of the collector of first triode and second triode is and power supply
End electrical connection；
The collector of first triode is also electrically connected with the control terminal of the switch, the first terminals of the switch and institute
Power end electrical connection is stated, the second terminals of the switch are electrically connected with the output end, and the output end is for opening or closing
Close the LED.
2. the ON-OFF control circuit of LED as described in claim 1, which is characterized in that the switch includes PMOS field-effect tube,
The grid of the PMOS field-effect tube is as the control terminal, and the source electrode of the PMOS field-effect tube is as first wiring
End, the drain electrode of the PMOS field-effect tube is as second terminals.
3. the ON-OFF control circuit of LED as described in claim 1, which is characterized in that the bistable circuit further includes first
Resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, first capacitor, the second capacitor；
The base stage of first triode is electrically connected with one end of one end of the first resistor and the first capacitor simultaneously, institute
The other end of the other end and the first capacitor of stating first resistor is electrically connected with the collector of second triode；It is described
The collector of second triode is electrically connected by the 3rd resistor with the power end；The base stage of first triode is also logical
The second resistance is crossed to be electrically connected with the ground terminal；The base stage of second triode one end with the 5th resistance simultaneously
Be electrically connected with one end of second capacitor, the other end of the other end of the 5th resistance and second capacitor with it is described
The collector of first triode is electrically connected；The collector of first triode passes through the 4th resistance and power end electricity
Connection；The base stage of second triode also passes through the 6th resistance and is electrically connected with the ground terminal.
4. the ON-OFF control circuit of LED as claimed in claim 3, which is characterized in that the ON-OFF control circuit of the LED also wraps
Include the 7th resistance, the 8th resistance, third capacitor, the 4th capacitor, the 5th capacitor；The base stage of first triode and the described 4th
One end of capacitor is electrically connected, the other end of the 4th capacitor simultaneously with one end of the third capacitor, the 7th resistance
One end electrical connection of one end, one end of the 8th resistance, the 5th capacitor, the other end of the 5th capacitor and described the
The base stage of two triodes is electrically connected, and the other end of the 8th resistance is electrically connected with one end of the touch-switch, the third
The other end of capacitor is electrically connected with the ground terminal, and the other end of the 7th resistance is electrically connected with the power end.
5. the ON-OFF control circuit of LED as claimed in claim 4, which is characterized in that the 7th resistance is 1-1.5 megaohms,
The third capacitor is 22-33 nanofarad.
6. the ON-OFF control circuit of LED as claimed in claim 4, which is characterized in that the ON-OFF control circuit of the LED also wraps
Include the 9th resistance, the tenth resistance, eleventh resistor；
One end of 9th resistance is electrically connected with the collector of first triode, and the other end of the 9th resistance is simultaneously
It is electrically connected with one end of one end of the tenth resistance, the eleventh resistor, the other end and the electricity of the tenth resistance
Source electrical connection, the other end of the eleventh resistor are electrically connected with the control terminal.
7. the ON-OFF control circuit of LED as claimed in claim 6, which is characterized in that the ON-OFF control circuit of the LED also wraps
Include the 6th capacitor, the 7th capacitor, the 8th capacitor；
One end of 6th capacitor is electrically connected with one end of the touch-switch, the other end of the 6th capacitor and described light
The other end electrical connection of touching switch；One end of 7th capacitor and one end of the 8th capacitor with second terminals
Electrical connection, the other end of the 7th capacitor and the other end of the 8th capacitor are electrically connected with the ground terminal.
8. the ON-OFF control circuit of LED as described in claim 1, which is characterized in that the conducting resistance of the touch-switch is small
In 50 milliohms.
9. the ON-OFF control circuit of LED as described in claim 1, which is characterized in that the output end is used for the LED's
Anode electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203732.0U CN208691605U (en) | 2018-07-27 | 2018-07-27 | The ON-OFF control circuit of LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203732.0U CN208691605U (en) | 2018-07-27 | 2018-07-27 | The ON-OFF control circuit of LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208691605U true CN208691605U (en) | 2019-04-02 |
Family
ID=65882626
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821203732.0U Active CN208691605U (en) | 2018-07-27 | 2018-07-27 | The ON-OFF control circuit of LED |
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| CN (1) | CN208691605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608455A (en) * | 2021-07-29 | 2021-11-05 | 梁文华 | Test tube cleaning instrument control circuit that disinfects |
-
2018
- 2018-07-27 CN CN201821203732.0U patent/CN208691605U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608455A (en) * | 2021-07-29 | 2021-11-05 | 梁文华 | Test tube cleaning instrument control circuit that disinfects |
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Effective date of registration: 20200417 Address after: 201100 floor 5, building 8, No. 2388, Chenhang Road, Minhang District, Shanghai Patentee after: CIG SHANGHAI Co.,Ltd. Address before: 201114 room 8, building 2388, 501 Chen Cheng Road, Shanghai, Minhang District Co-patentee before: ZHEJIANG JIANQIAO ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee before: CIG SHANGHAI Co.,Ltd. |