CN110301991A - A kind of expansion instrument - Google Patents
A kind of expansion instrument Download PDFInfo
- Publication number
- CN110301991A CN110301991A CN201910604893.3A CN201910604893A CN110301991A CN 110301991 A CN110301991 A CN 110301991A CN 201910604893 A CN201910604893 A CN 201910604893A CN 110301991 A CN110301991 A CN 110301991A
- Authority
- CN
- China
- Prior art keywords
- coupled
- triode
- pulse
- resistance
- pulse signal
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Led Devices (AREA)
Abstract
The embodiment of the invention discloses a kind of expansion instrument, including the double frequency depth measurement module for exporting varying voltage signal according to root canal different depth, expand the current acquisition module of size of current on instrument motor for acquiring root, it is coupled to double frequency depth measurement module and current acquisition module is used to carry out the processing module of core processing, first pulse signal of the different voltage signal output different duties that the processing module is used to be exported according to double frequency depth measurement module, and for the second pulse signal according to the collected electric current output different duty of current acquisition module, therapeutic instrument for root canal further includes the LED circuit for showing different brightness according to the first pulse signal and the second pulse signal, double frequency depth measurement module exports varying voltage signal, the first different pulse signal of the duty ratio of control single chip computer output, control the brightness of the first LED light strip, Root expands instrument motor difference torque, carrys out the second different pulse signal of the duty ratio of control single chip computer output, controls the brightness of the second LED light strip.
Description
Technical field
The present embodiments relate to roots to expand instrument technical field, and in particular to a kind of expansion instrument.
Background technique
Therapeutic instrument for root canal is called root canal motor, is to expand root canal by hand to mitigate the working strength of doctor, substitution, improve
A precision electronic device that efficiency saves the time, prepares more standard root canal and design.
Medical therapeutic instrument for root canal in the market is various in style, dazzling, but Comparative result plays basic principle and makes
All be with function it is similar, be common in market therapeutic instrument for root canal generally have side face root canal depth root survey instrument also have to root canal
Widened therapeutic equipment is carried out, since traditional root canal treatment is to realize root canal depth by root survey instrument and root expansion two equipment of instrument
Measurement and the widened function of root canal, doctor, which operates, to be more troublesome, and be not easy in root canal treatment by the depth of root canal with
And the torque of root expansion machine treats root canal.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of expansion instrument, to solve in the prior art due to existing therapeutic instrument for root canal
It cannot indicate the problem that therapeutic effect is poor caused by root canal depth and root canal torque.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions: a kind of expansion instrument, including is used for basis
The double frequency depth measurement module of root canal different depth output varying voltage signal, the electric current for expanding size of current on instrument motor for acquiring root
Acquisition module is coupled to double frequency depth measurement module and current acquisition module for carrying out the processing module of core processing, the processing
First pulse signal of the different voltage signal output different duties that module is used to be exported according to double frequency depth measurement module, and
For the second pulse signal according to the collected electric current output different duty of current acquisition module, therapeutic instrument for root canal further includes
For showing the LED circuit of different brightness according to the first pulse signal and the second pulse signal.
Further, the double frequency depth measurement module is input to the voltage ratio of single-chip microcontroller and the first pulse of single-chip microcontroller output
The duty ratio of signal is proportional.
Further, the bigger duty ratio with the second pulse signal of single-chip microcontroller output of the torque of described expansion instrument motor is in
Direct ratio.
Further, the LED circuit includes the first LED circuit in response to the work of the first pulse signal, the LED electricity
Road further includes the second LED circuit in response to the work of the second pulse signal.
Further, first LED circuit includes the first pulse-width modulator, first resistor, second resistance, first
The input terminal of capacitor, the first triode and the first LED light strip, first pulse-width modulator is directly coupled to single-chip microcontroller
The first PWM output pin on, the output end of first pulse-width modulator is coupled directly to first resistor, described first
Resistance is further coupled to the base stage of the first triode, and one end of the second resistance is coupled in the base of first resistor Yu the first triode
On the node of pole coupling, the other end of the second resistance is grounded, and one end of the first capacitor is coupled in second resistance and the
On the node of the base stage coupling of one triode, the other end of the first capacitor is coupled in the node of second resistance and ground coupling
On, the anode of first LED light strip is coupled directly on power supply, and the cathode of first LED light strip is coupled directly to first
On the collector of triode, the emitter of the triode is grounded.
Further, second LED circuit includes the second pulse-width modulator, 3rd resistor, the 4th resistance, second
The input terminal of capacitor, the second triode and the second LED light strip, second pulse-width modulator is directly coupled to single-chip microcontroller
The 2nd PWM output pin on, the output end of second pulse-width modulator is coupled directly to 3rd resistor, 3rd resistor
It is further coupled to the base stage of the second triode, two ends of the 4th resistance are coupled in the base stage coupling of 3rd resistor Yu the second triode
On the node connect, another two end of the 4th resistance is grounded, and two ends of second capacitor are coupled in the 4th resistance and the two or three
On the node of the base stage coupling of pole pipe, another two end of second capacitor is coupled on the 4th resistance and the node of ground coupling, institute
The anode for stating the second LED light strip is coupled directly on power supply, and the cathode of the second LED light strip pole pipe is coupled directly to the two or three
On the collector of pole pipe, the emitter of second triode is grounded.
Further, the processing module includes single-chip microcontroller.
The embodiment of the present invention has the advantages that the difference that the different depth output of root canal is measured according to double frequency depth measurement module
Voltage signal carrys out the first different pulse signal of the duty ratio of control single chip computer output, and then controls the bright of the first LED light strip
Degree expands the different current signals of instrument motor difference torque output according to root, come the duty ratio of control single chip computer output it is different the
Two pulse signals, and then control the brightness of the second LED light strip.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the overall structure connection figure for a kind of expansion instrument that the embodiment of the present invention 1 provides；
Fig. 2 is the circuit diagram of the first LED circuit of a kind of expansion instrument that the embodiment of the present invention 2 provides；
Fig. 3 is the circuit diagram of the second LED circuit of a kind of expansion instrument that the embodiment of the present invention 3 provides.
In figure: 1, double frequency depth measurement module；2, current acquisition module；3, processing module；4, the first LED circuit；5, the 2nd LED
Circuit.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment: a kind of expansion instrument, as shown in Figure 1, including for exporting varying voltage signal according to root canal different depth
Double frequency depth measurement module 1, for acquire root expand instrument motor on size of current current acquisition module 2, be coupled to double frequency depth measurement mould
Block 1 and current acquisition module 2 are used to carry out the processing module 3 of core processing, and processing module 3 is used for according to double frequency depth measurement module 1
First pulse signal of the different voltage signal output different duties of output, and for being adopted according to current acquisition module 2
Second pulse signal of the electric current output different duty collected, therapeutic instrument for root canal further include for aobvious according to the first pulse signal
Show the first LED circuit 4 of different brightness, and the second LED circuit 5 for showing different brightness according to the second pulse signal.
Above-mentioned double frequency depth measurement module 1 measures root canal depth using double frequency Bathymetric Technology, since the technology is well-known technique,
Do not add to repeat in the present embodiment.Above-mentioned processing module 3 is set as single-chip microcontroller, double frequency depth measurement module 1 in the present embodiment
The voltage signal of output inputs in single-chip microcontroller after being converted into digital signal, the first input pin and double frequency depth measurement mould of the single-chip microcontroller
Block 1 is converted into the output end connection after digital signal, and double frequency depth measurement module 1 causes the voltage ratio for being input to single-chip microcontroller different,
The voltage value that single-chip microcontroller is inputted according to double frequency depth measurement module 1 is compared with value preset in single-chip microcontroller, and single-chip microcontroller is according to being calculated
Voltage ratio it is different, control the first pulse signal of the different duty of output.
Above-mentioned current acquisition module 2 is the circuit for acquiring the operating current size that root expands on instrument motor, i.e. an electric current
Sample circuit is not added to repeat herein since the current sampling circuit of motor is more conventional.Wherein current acquisition module 2 will adopt
The size of current collected inputs in single-chip microcontroller after being converted into digital signal, and current acquisition module 2 is converted into the output of digital signal
End is connected on the second input pin of single-chip microcontroller, can be met obstructions when wherein root expands instrument rotation, root expands the resistance that instrument motor encounters
Power is bigger, and its torque is bigger, and the Motor torque the big, exports the pulse letter that electric current is bigger, and the more big then single-chip microcontroller of output electric current exports
Number duty ratio it is bigger, therefore lamp is brighter.
Referring to shown in Fig. 2, wherein the first LED circuit 4 includes the first pulse-width modulator PWM1, first resistor R1, the
Two resistance R2, first capacitor C1, the first triode Q1 and the first LED light strip LEDR1, the first above-mentioned pulse-width modulator
The input terminal of PWM1 is directly coupled on the first PWM output pin of single-chip microcontroller, the output of the first pulse-width modulator PWM1
End is coupled directly to first resistor R1, and first resistor R1 is further coupled to the base stage of the first triode Q1, one end of second resistance R2
It being coupled on the node of base stage coupling of first resistor R1 and the first triode Q1, the other end of second resistance R2 is grounded, and first
One end of capacitor C1 is coupled on the node of base stage coupling of second resistance R2 and the first triode Q1, and first capacitor C1's is another
End is coupled on second resistance R2 and the node of ground coupling, and the anode of the first LED light strip LEDR1 is coupled directly on power supply, the
The cathode of one LED light strip LEDR1 is coupled directly on the collector of triode, the emitter ground connection of the first triode Q1, can
The arteries and veins of different duty is obtained by the first pulse-width modulator PWM1 by the signal of the first PWM output pin of single-chip microcontroller
Signal is rushed, and then controls the conduction time of the first LED light strip LEDR1, realizes the pulse letter by control output different duty
Number control the first LED light strip LEDR1 brightness.The difference of the different depth output of root canal is measured according to double frequency depth measurement module 1
Voltage signal carrys out the first different pulse signal of the duty ratio of control single chip computer output, and then controls the first LED light strip LEDR1
Brightness.
Referring to shown in Fig. 3, the second LED circuit 5 includes the second pulse-width modulator PWM2,3rd resistor R3, the 4th electricity
Hinder R4, the second capacitor C2, the second triode Q2 and the second LED light strip LEDR2, the second above-mentioned pulse-width modulator PWM2
Input terminal be directly coupled on the 2nd PWM output pin of single-chip microcontroller, the output end of the second pulse-width modulator PWM2 is straight
It connects and is coupled to 3rd resistor R3,3rd resistor R3 is further coupled to the base stage of the second triode Q2, the two ends coupling of the 4th resistance R4
On the node of the base stage of 3rd resistor R3 and the second triode Q2 coupling, another two end of the 4th resistance R4 is grounded, the second capacitor
Two ends of C2 are coupled on the node of base stage coupling of the 4th resistance R4 and the second triode Q2, the another two end coupling of the second capacitor C2
It connects on the 4th resistance R4 and the node of ground coupling, the anode of the second triode Q2 is coupled directly on power supply, the second LED light strip
The cathode of LEDR2 is coupled directly on the collector of the second LED light strip LEDR2, the emitter ground connection of the second triode Q2, can
The arteries and veins of different duty is obtained by the second pulse-width modulator PWM2 by the signal of the 2nd PWM output pin of single-chip microcontroller
Signal is rushed, and then controls the conduction time of the second LED light strip LEDR2, realizes the pulse letter by control output different duty
Number control the second LED light strip LEDR2 brightness.Expand the different current signals of instrument motor difference torque output, according to root to control
The second different pulse signal of the duty ratio of single-chip microcontroller output processed, and then control the brightness of the second LED light strip LEDR2.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of expansion instrument, including double frequency depth measurement module (1), the use for exporting varying voltage signal according to root canal different depth
Expand the current acquisition module (2) of size of current on instrument motor in acquisition root, be coupled to double frequency depth measurement module (1) and current acquisition mould
Block (2) is used to carry out the processing module (3) of core processing, it is characterized in that: the processing module (3) is used for according to double frequency depth measurement mould
First pulse signal of the different voltage signal output different duties of block (1) output, and for according to current acquisition mould
Second pulse signal of the collected electric current output different duty of block (2), therapeutic instrument for root canal further includes for according to the first arteries and veins
It rushes signal and the second pulse signal shows the LED circuit of different brightness.
2. a kind of expansion instrument according to claim 1, it is characterized in that: the double frequency depth measurement module (1) is input to single-chip microcontroller
The duty ratio of the first pulse signal that exports of voltage ratio and single-chip microcontroller it is proportional.
3. a kind of expansion instrument according to claim 1, it is characterized in that: the torque of described expansion instrument motor is bigger and single-chip microcontroller
The duty ratio of second pulse signal of output is proportional.
4. a kind of expansion instrument according to claim 1, it is characterized in that: the LED circuit includes believing in response to the first pulse
Number work the first LED circuit (4), the LED circuit further include in response to the second pulse signal work the second LED circuit
(5)。
5. a kind of expansion instrument according to claim 4, it is characterized in that: first LED circuit (4) includes that the first pulse is wide
It is wide to spend modulator, first resistor, second resistance, first capacitor, the first triode and the first LED light strip, first pulse
The input terminal of degree modulator is directly coupled on the first PWM output pin of single-chip microcontroller, first pulse-width modulator
Output end is coupled directly to first resistor, and the first resistor is further coupled to the base stage of the first triode, the second resistance
One end is coupled on the node of the base stage coupling of first resistor and the first triode, and the other end of the second resistance is grounded, institute
The one end for stating first capacitor is coupled on the node that the base stage of second resistance and the first triode couples, the first capacitor it is another
One end is coupled on the node of second resistance and ground coupling, and the anode of first LED light strip is coupled directly on power supply, described
The cathode of first LED light strip is coupled directly on the collector of the first triode, the emitter ground connection of the triode.
6. a kind of expansion instrument according to claim 4, it is characterized in that: second LED circuit (5) includes that the second pulse is wide
It is wide to spend modulator, 3rd resistor, the 4th resistance, the second capacitor, the second triode and the second LED light strip, second pulse
The input terminal of degree modulator is directly coupled on the 2nd PWM output pin of single-chip microcontroller, second pulse-width modulator
Output end is coupled directly to 3rd resistor, and 3rd resistor is further coupled to the base stage of the second triode, two ends of the 4th resistance
It being coupled on the node that the base stage of 3rd resistor and the second triode couples, another two end of the 4th resistance is grounded, and described the
Two ends of two capacitors are coupled on the node of the base stage coupling of the 4th resistance and the second triode, another two end of second capacitor
It being coupled on the 4th resistance and the node of ground coupling, the anode of second LED light strip is coupled directly on power supply, and described second
The cathode of LED light strip pole pipe is coupled directly on the collector of the second triode, the emitter ground connection of second triode.
7. a kind of expansion instrument according to claim 1, it is characterized in that: the processing module (3) includes single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604893.3A CN110301991A (en) | 2019-07-05 | 2019-07-05 | A kind of expansion instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604893.3A CN110301991A (en) | 2019-07-05 | 2019-07-05 | A kind of expansion instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110301991A true CN110301991A (en) | 2019-10-08 |
Family
ID=68079180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910604893.3A Pending CN110301991A (en) | 2019-07-05 | 2019-07-05 | A kind of expansion instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110301991A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201267535Y (en) * | 2007-12-13 | 2009-07-08 | 郭红 | Dental root-canal enlarging instrument for automatically alarming when approaching to apical foramen |
| US20130189644A1 (en) * | 2012-01-20 | 2013-07-25 | William B. Johnson | Multi-Planar Pre-Curved Rotary Endodontic File |
| CN207477563U (en) * | 2017-05-16 | 2018-06-12 | 信利半导体有限公司 | It is a kind of can voice control wireless charging therapeutic instrument for root canal |
| WO2018130147A1 (en) * | 2017-01-11 | 2018-07-19 | 李翊赫 | Nickel-titanium file root canal preparation instrument |
| CN108306561A (en) * | 2018-02-26 | 2018-07-20 | 施程峰 | A kind of drive control circuit |
| WO2018165390A1 (en) * | 2017-03-08 | 2018-09-13 | The Trustees Of Dartmouth College | Electrical impedance sensing dental drill system configured to detect cancellous-cortical bone and bone-soft tissue boundaries |
| WO2018168636A1 (en) * | 2017-03-14 | 2018-09-20 | 株式会社モリタ製作所 | Root canal treatment device |
| CN108670446A (en) * | 2018-05-31 | 2018-10-19 | 广州泰莱医疗设备有限公司 | A kind of pipe motor measures therapeutic equipment |
| CN108712111A (en) * | 2018-05-31 | 2018-10-26 | 广州泰莱医疗设备有限公司 | A kind of intelligent controlling device and its control method of the rotation of therapeutic instrument for root canal motor |
| CN108852533A (en) * | 2018-04-10 | 2018-11-23 | 信利半导体有限公司 | The hand-held integrated therapeutic instrument for root canal of one kind |
| CN109199624A (en) * | 2018-08-15 | 2019-01-15 | 施程峰 | A kind of method and device for calibrating root canal length meter |
| CN208710111U (en) * | 2018-04-10 | 2019-04-09 | 信利半导体有限公司 | A kind of therapeutic instrument for root canal and human-computer interaction terminal based on wireless transmission |
| CN109618471A (en) * | 2019-01-28 | 2019-04-12 | 顺德职业技术学院 | A kind of light adjusting system and its control method |
-
2019
- 2019-07-05 CN CN201910604893.3A patent/CN110301991A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201267535Y (en) * | 2007-12-13 | 2009-07-08 | 郭红 | Dental root-canal enlarging instrument for automatically alarming when approaching to apical foramen |
| US20130189644A1 (en) * | 2012-01-20 | 2013-07-25 | William B. Johnson | Multi-Planar Pre-Curved Rotary Endodontic File |
| WO2018130147A1 (en) * | 2017-01-11 | 2018-07-19 | 李翊赫 | Nickel-titanium file root canal preparation instrument |
| WO2018165390A1 (en) * | 2017-03-08 | 2018-09-13 | The Trustees Of Dartmouth College | Electrical impedance sensing dental drill system configured to detect cancellous-cortical bone and bone-soft tissue boundaries |
| WO2018168636A1 (en) * | 2017-03-14 | 2018-09-20 | 株式会社モリタ製作所 | Root canal treatment device |
| CN207477563U (en) * | 2017-05-16 | 2018-06-12 | 信利半导体有限公司 | It is a kind of can voice control wireless charging therapeutic instrument for root canal |
| CN108306561A (en) * | 2018-02-26 | 2018-07-20 | 施程峰 | A kind of drive control circuit |
| CN108852533A (en) * | 2018-04-10 | 2018-11-23 | 信利半导体有限公司 | The hand-held integrated therapeutic instrument for root canal of one kind |
| CN208710111U (en) * | 2018-04-10 | 2019-04-09 | 信利半导体有限公司 | A kind of therapeutic instrument for root canal and human-computer interaction terminal based on wireless transmission |
| CN108670446A (en) * | 2018-05-31 | 2018-10-19 | 广州泰莱医疗设备有限公司 | A kind of pipe motor measures therapeutic equipment |
| CN108712111A (en) * | 2018-05-31 | 2018-10-26 | 广州泰莱医疗设备有限公司 | A kind of intelligent controlling device and its control method of the rotation of therapeutic instrument for root canal motor |
| CN109199624A (en) * | 2018-08-15 | 2019-01-15 | 施程峰 | A kind of method and device for calibrating root canal length meter |
| CN109618471A (en) * | 2019-01-28 | 2019-04-12 | 顺德职业技术学院 | A kind of light adjusting system and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103997206B (en) | Switching power source | |
| CN105430783B (en) | Electromagnetic oven circuit | |
| CN110301991A (en) | A kind of expansion instrument | |
| CN106787926B (en) | A kind of highpowerpulse current generating system | |
| CN206850681U (en) | Ripple suppression circuit and the electric pressure converter including the ripple suppression circuit | |
| CN207265896U (en) | A kind of voltage stabilizing inverter source | |
| CN106059370A (en) | Pure sine wave inverter with pulse width modulation, voltage stabilization and isolation functions | |
| CN213843380U (en) | Zero-crossing detection circuit | |
| CN212969589U (en) | Wide band function signal generator with continuously adjustable amplitude | |
| CN212909348U (en) | Feedback circuit used in power supply voltage reduction chip | |
| CN209638067U (en) | A kind of processing of brushless electronic fan PWM speed-regulating signal and stand-by circuit | |
| CN106719590B (en) | Intelligent rat repelling device based on MCU multi-signal fusion technology and operation method thereof | |
| CN106549572A (en) | A kind of circuit for generating negative voltage | |
| CN203057113U (en) | Periodic pulse width/voltage signal unipolar precision converting circuit | |
| CN209764936U (en) | Passive isolated voltage acquisition module | |
| CN108872967A (en) | Laser radar narrow-pulse generation circuit and method | |
| CN208860371U (en) | A kind of Intelligence Ultrasound wave sensor | |
| CN220273656U (en) | Power supply voltage conversion comparison circuit | |
| CN220382943U (en) | Power management chip and switching power management system | |
| CN109041382B (en) | Two core wire RGB light adjusting circuit of outdoor low voltage | |
| CN215073057U (en) | Driving circuit | |
| CN214900645U (en) | MOS pipe control circuit of low-voltage conversion rate | |
| CN108306559A (en) | A kind of SCM Based DC motor speed drive system | |
| CN208315189U (en) | A kind of piezo buzzer circuit | |
| CN219145368U (en) | Optocoupler isolation voltage transmission circuit and frequency converter drive plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191008 |