CN107112989A - On/off circuit and droplet detector - Google Patents
On/off circuit and droplet detector Download PDFInfo
- Publication number
- CN107112989A CN107112989A CN201680004621.4A CN201680004621A CN107112989A CN 107112989 A CN107112989 A CN 107112989A CN 201680004621 A CN201680004621 A CN 201680004621A CN 107112989 A CN107112989 A CN 107112989A
- Authority
- CN
- China
- Prior art keywords
- signal
- circuit
- power
- switch
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/284—Modifications for introducing a time delay before switching in field effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
Landscapes
- Electronic Switches (AREA)
Abstract
A kind of on/off circuit (10) and its droplet detector (1).On/off circuit (10) includes the power output end (107) for being used to receive power supply signal power input (101), manual switch (102), power switch (103), start control circuit (104), the first shutdown control circuit (105) and connection load circuit (30).Hand switch (102) is used to receive external user input operation, and the duration of input operation is respectively the very first time and the second time for being different from.Input operation continues start control circuit (104) output starting-up signal during the very first time.The first shutdown control circuit (105) outputs control signals to start control circuit (104) when input operation continued for the second time, and start control circuit (104) exports off signal according to control signal.Power switch (103) receives starting-up signal and off signal, so as to corresponding selection control power input (101), electrically (107) turn on or electrically disconnected with the power output end, to be provided by power output end or stop providing power supply signal to load circuit (30).
Description
Technical field
The present invention relates to the on/off circuit of the on/off circuit of a kind of electronic equipment, more particularly to droplet detector.
Background technology
General electronic equipment at present, the upper electrical switch button of such as droplet detector and the button that the shuts down behaviour that to be two different
Make button, to control droplet detector to start working with being stopped.Key switch quantity that is such then causing droplet detector
It is more, cause the more numerous and diverse inconvenience of operation.
The content of the invention
In view of this, it is necessary to which a kind of operation conveniently on/off circuit is provided.
Further there is provided a kind of droplet detector with the on/off circuit.
A kind of on/off circuit, including power input, manual switch, power switch, start control circuit, the first shutdown
Circuit and power output end are controlled, the power input receives a power supply signal, and the power output end connection one is loaded
Circuit, the hand switch is used to receive external user input operation, when the duration of the input operation is respectively first
Between with the second time, the start control circuit start of output one letter when detecting that the hand switch input operation continues the very first time
Number to power switch, the first shutdown control circuit exports a control when detecting that the hand switch input operation continued for the second time
Signal processed to the start control circuit, the start control circuit exports an off signal to power supply according to the control signal
Switch, the power switch is electrically connected with the power input, the power output end and the start control circuit, and
The starting-up signal and off signal are received from the start control circuit, so that corresponding selection control power input and institute
Power output end is stated to electrically conduct or electrically disconnect, wherein, the very first time was different from for the second time.
Preferably, the power switch includes the first connection end, the second connection end and control end, wherein, the first connection
End is electrically connected with the power input, and second connection end is electrically connected with the power output end, and the control end is electrical
The start control circuit is connected, the starting-up signal or off signal is received, it is described when receiving the starting-up signal
When being electrically conducted between power input and power output end, the power supply signal is provided to the power output end；Work as reception
During to the starting-up signal, when the power input electrically disconnects with power output end, power supply signal stops transmitting to described
Power output end.
Preferably, the start control circuit includes the first test side, the first control end, signal output part and self-locking
End, first test side is electrically connected with the hand switch, and the first control end, which connects first shutdown control circuit, to be used for
The control signal of its output is received, the signal output part connects the power switch, for exporting the corresponding start letter
Number or the off signal, it is described to be electrically connected with the power output end, the electricity for receiving the power output end from lock end
Source signal and export the starting-up signal according to the power supply signal continuation.
The first steering diode that preferably, the start control circuit includes being sequentially connected in series since the first test side,
First current-limiting resistance, the first charging capacitor and earth terminal, first charging capacitor are specified for being charged in the very first time
Voltage is so as to drive the start control circuit to export the starting-up signal.
Preferably, the start control circuit also includes a self-locking diode, and the anode of the self-locking diode electrically connects
The power output end is connect, negative electrode is electrically connected with first charging capacitor, and the self-locking diode is used to open manually described
Power supply signal is continuously available to first charging capacitor when Guan Wei receives input operation, it is ensured that the first start control
Circuit persistently provides the starting-up signal to the power supply module.
Preferably, the start control circuit also includes the first voltage-regulator diode and the first controlling switch, described first
The anode of voltage-regulator diode is electrically connected with first control end, and the negative electrode of first voltage-regulator diode is then electrically connected at institute
The first controlling switch is stated, first voltage-regulator diode is used to provide a stable control voltage to the first controlling switch.
Preferably, first shutdown control circuit includes the second test side and control signal output, second inspection
Survey end and be electrically connected with the hand switch, the power supply letter provided for receiving when the hand switch receives input operation
Number, the control signal output is electrically connected with the shutdown control circuit, and first shutdown circuit is believed by the control
Number output end exports the control signal to the shutdown control circuit.
Preferably, first shutdown circuit includes the second steering diode and second connected from second test side
Charging capacitor, second steering diode is used to power supply signal is provided to the described second charging electricity from the hand switch
Hold, whether the duration that second charging capacitor is used to detect the input operation that the hand switch receives is second
Time, and when the input operation duration was the second time, control first shutdown circuit to export the control signal.
Preferably, the second charging capacitor charging complete and reach given voltage time be equal to the second time, institute
State given voltage correspondence and start the startup voltage that first shutdown circuit exports the control signal.
Preferably, first shutdown circuit also include the second controlling switch and the partial pressure voltage-regulator diode that is sequentially connected in series with
First divider resistance, the partial pressure voltage-regulator diode and the first divider resistance are used to provide institute according to the voltage of the second charging capacitor
The startup voltage stated is to the second controlling switch, and the second controlling switch is used for according to the control letter described in the startup voltage output
Number, it is in the conduction state when second switch receives startup voltage, so that the second controlling switch output control letter
It is not defeated when second controlling switch does not receive startup voltage and during in cut-off state number to control signal output
Go out control signal to signal output part.
Preferably, first shutdown circuit, which also includes one, prevents false touch Power Generation Road, for ensureing the second charging electricity
Appearance does not provide the startup voltage in uncharged completion to the second controlling switch, prevents false touch Power Generation Road from including the 3rd control
Switch and pressure limiting resistance, the pressure limiting resistance are used to provide a reference voltage, the 3rd controlling switch for the 3rd controlling switch
When detecting that the charging voltage of second charging capacitor is less than the reference voltage, the 3rd controlling switch control described first
Shutdown circuit does not provide the startup voltage to the second controlling switch, the 3rd controlling switch detection the second charging electricity
When the charging voltage of appearance is equal to or more than the reference voltage, the 3rd controlling switch controls first shutdown circuit to provide
The voltage that starts is to the second controlling switch.
Preferably, the pressure limiting resistance obtain reference voltage be equal to voltage that the second charging capacitor charging complete has with
3rd controlling switch conducting voltage sum.
Preferably, the on/off circuit also include the second shutdown control circuit, including the 3rd test side, change-over circuit,
Conversion signal output end, micro-processor interface circuit, enabling signal output end, the 4th controlling switch and control signal output, it is described
3rd test side, which is electrically connected with hand switch, to be used to obtain power supply signal, and the change-over circuit is electrically connected with the 3rd test side
It is described for the power supply signal to be converted to according to the operating time of input operation between the conversion signal output end
Pulse signal, and from conversion signal output end output, the micro-processor interface circuit is described according to pulse signal correspondence identification
The duration for the input operation that hand switch is received, and when identification obtained for the second time, the micro-processor interface circuit output
Enabling signal is to enabling signal output end and controls the 4th controlling switch to export the control signal to the shutdown control electricity
Road.
Preferably, the width of the pulse signal is relative with the duration that the hand switch receives input operation
Should.
Preferably, the first pulse signal of the very first time correspondence, to institute's the second pulse signal of the second time correspondence, first
Pulse signal represents corresponding input operation type respectively, and the pulse signal is level pulse signal.
A kind of droplet detector, including the electromechanical road of aforementioned switches, power supply module and load circuit, wherein, power supply module
For exporting the power supply signal, load circuit is used to receive the power supply signal normal work.
Relative to prior art, the on/off circuit can be by by start control circuit, the first shutdown control circuit
According to external user input operation operating time realize power supply signal supply whether, the multi-functional behaviour for reaching on/off circuit
Make, operate more convenient.
Further, when on/off circuit control power supply signal stops providing to load circuit, it is ensured that power supply signal
Reliably stop transmission so that the static power consumption of load circuit is relatively low, thus improve the job stability of droplet tester with
And the life-span.
Brief description of the drawings
Fig. 1 is the circuit block diagram of droplet detector in a better embodiment of the invention.
Fig. 2 is the circuit block diagram of on/off circuit shown in Fig. 1.
Fig. 3 is the particular circuit configurations figure of on/off circuit shown in Fig. 2.
Fig. 4 be converted circuit conversion after pulse signal timing diagram.
Main element symbol description
Following embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in description herein book is intended merely to describe specific implementation
The purpose of example, it is not intended that in the limitation present invention.Term as used herein " and/or " include it is one or more related listed
The arbitrary and all combination of project.
Referring to Fig. 1, Fig. 1 is the circuit block diagram of droplet detector in a better embodiment of the invention.Wherein, it is described
On/off circuit 10 is used for the time for the power supply signal of load circuit 30 for controlling power supply module 20 to be supplied to droplet detector 1,
It is when the control power supply of on/off circuit 10 module 20 provides power supply signal for load circuit 30, with the work of driving load circuit 30
Make；When stopping, which is load circuit 30, provides power supply signal, meanwhile, when stopping powering for load circuit 30 so that load electricity
The static power consumption on road 30 is zero.
In present embodiment, power supply module 20 can be with a battery modules, and in the present invention, other are changed in embodiments, power supply
Module 20 can be voltage conversion circuit.In addition, the voltage for the power supply signal that power supply module 20 is provided is 10V, certainly, in this hair
In bright other embodiment, it can be changed, be not limited thereto according to the power consumption of load circuit 30.
Further referring to Fig. 2, wherein, Fig. 2 is the circuit block diagram of on/off circuit 10 shown in Fig. 1.
The on/off circuit 10 includes power input 101, hand switch 102, power switch 103, start control electricity
Road 104, the first shutdown control circuit 105, the second shutdown control circuit 106 and power output end 107.
Wherein, power input 101 is electrically connected at power supply module 20, for receiving power supply signal.Hand switch 102 is used
In the input operation for receiving user, wherein, duration of the input operation on hand switch 102 represents different behaviour respectively
Make, such as power-on operation or power-off operation, in present embodiment, the input operation lasting very first time represents power-on operation, defeated
Enter operation and continued for the second time then to represent power-off operation, wherein, the very first time is different from the second time, present embodiment, the
One time was less than for the second time, specifically, and the very first time is 1 second, and the second time was 3 seconds, and the second time was the three of the very first time
Times.
Power switch 103 is used to provide power supply signal to power supply according to starting-up signal or off signal selectivity and export
End 107.Start control circuit 104 is used to export starting-up signal to power switch 103 when input operation continues the very first time, and
And input operation continued for the second time and receives control from the first shutdown control circuit 105 or the second shutdown control circuit 106
Off signal is exported during signal processed to power switch 103.Power output end 107 connects load circuit 30, for transmitting power supply letter
Number to load circuit 30.
Specifically, hand switch 102 includes the first transmission end 102a and the second transmission end 102b, wherein, the first transmission end
102a is electrically connected with power input 101, and the second transmission end 102b is connected to the shutdown control electricity of start control circuit 104 and first
Road 105.Wherein, hand switch 102 is used to detecting the input operation of external user, and according to whether receiving input operation choosing
Selecting property transmits power supply signal to the shutdown control circuit 105 of start control circuit 104 and first.
When hand switch 102 receives the operation of external user, the first transmission end 102a and the second transmission end 102b electricity
Property conducting, that is to say that the first transmission end 102a and the second transmission end 102b can carry out the transmission of power supply signal, so that will be from electric
The power supply signal that source input 101 is received is transmitted to the shutdown control circuit 105 of start control circuit 104 and first；When manual
When switch 102 does not receive the operation of external user, the first transmission end 102a electrically disconnects with the second transmission end 102b, that is to say
First transmission end 102a and the second transmission end 102b can not carry out the transmission of power supply signal, then power supply signal is not provided to start
Control the shutdown control circuit 105 of circuit 104 and first.It is appreciated that the hand switch 102 in present embodiment is normally opened for one
The switch element of contact.
Power switch 103 is electrically connected between power input 101 and power output end 107, while receiving start letter
Number or off signal, and according to the starting-up signal or off signal that receive selectively control power input 101 with
Electrically conduct or electrically disconnect between power output end 107.Specifically, power switch 103 includes the first connection end 103a, the
Two connection end 103b and control end 103c, wherein, the first connection end 103a is electrically connected with the power input 101, second
Connection end 103b is electrically connected with power output end 107, and control end 103c is used to receive the starting-up signal or off signal.
Power switch 103 is when receiving starting-up signal, and it is controlled between power input 101 and power output end 107
Electrically conduct, power supply module 20 provides power supply signal to load circuit 30, when power switch receives off signal, it is controlled
When being electrically disconnected between power input 101 and power output end 107 processed, non-transformer between power supply module 20 and load circuit 30
Signal is transmitted, using the static power consumption of proof load circuit 30 as zero.
Start control circuit 104 is electrically connected with the power switch 103, for detecting that it is defeated that hand switch 102 receives user
Enter the operating time of operation and receive the power supply signal from hand switch 102, and according to the operating time and power supply
The starting-up signal of signal output one is to power switch 103, so as to control power switch 103 to export power input 101 and power supply
End 107 electrically conducts, and is transmitted with the power supply signal for causing power supply module 20 to provide to power output end 107 and load circuit
30, while remaining in that power input 101 and power output end 107 when hand switch 102 does not receive input operation
The supply with power supply signal is electrically connected with, reaches self lock function.In addition, the start control circuit 104 is also connected with first
The shutdown control circuit 106 of shutdown control circuit 105 and second, for exporting the off signal according to its control signal provided
To power switch 103.
Specifically, start control circuit 104 includes the first test side 104a, the first control end 104b and signal output
Hold 104c and from lock end 104d, wherein, the first test side 104a is electrically connected with the second transmission end 102b of hand switch 102,
The first control end 104b connections shutdown control circuit 106 of the first shutdown control circuit 105 and second, for receiving its output
Off signal；The signal output part 104c connections power switch 103, for exporting corresponding starting-up signal or shutdown letter
Number, be electrically connected with the power output end 107 from lock end 104d, for receive power output end 107 power supply signal and according to
The starting-up signal is exported according to the power supply signal continuation.
First shutdown control circuit 105 is electrically connected with the power switch 103, for detecting that hand switch 102 receives use
The operating time of family input operation and the power supply signal is received from hand switch 102, and held according to the input operation
Continuous very first time correspondence output control signal signal is to power switch 103, so as to control power switch 103 by power input
101 electrically disconnect with power output end 107, reliably stop transmitting to power supply with the power supply signal for causing power supply module 20 to provide
Output end 107 and load circuit 30, that is to say and transmitted without any power supply signal to load circuit 30, so that what be ensure that is quiet
Electric consumption is zero.
First shutdown control circuit 105 includes the second test side 105a and control signal output 105b.Second test side
105a is electrically connected with the second transmission end 102b, for receiving power supply signal.Control signal output 105b is electrically connected with institute
The first control end 104b is stated, for exporting the control signal.In present embodiment, the control signal is low-potential signal,
For example, 0V.
Second shutdown control circuit 106 is electrically connected with the power switch 103, for detecting that hand switch 102 receives use
The operating time of family input operation and receive the power supply signal from hand switch 102, and will according to the operating time
Power supply signal is converted to a pulse signal, and according to the corresponding starting-up signal of output of pulse signal to power switch 103, so that
Control power switch 103 electrically disconnects power input 101 with power output end 107, to cause the offer of power supply module 20
Power supply signal reliably stops transmitting to power output end 107 and load circuit 30.Further, the second shutdown control electricity
Road 106 can also be according to the off signal described in the pulse signal timing output.It is preferred that the pulse signal is TTL electricity
Flat pulse signal, the pulsewidth correspondence hand switch 102 of the pulse signal receives the operating time of user's input operation, to that is to say
The operating time that the width of the pulse signal receives user's input operation with hand switch 102 increases and increased.
Wherein, the second shutdown circuit 106 includes the 3rd test side 106a and control signal output 106d, wherein, the
Three test side 106a are electrically connected at hand switch 102, for detecting whether hand switch 102 receives input operation, and
Detect when hand switch 102 receives input operation and obtain power supply signal.Control signal output 106d is electrically connected with start
Circuit 104 is controlled, the second shutdown control circuit 106 is by control signal output 106d by the control signal to control of starting shooting
Circuit 104.
In present embodiment, starting-up signal is low potential, for example 0V；Starting-up signal is high potential, for example, 3.5-5V.
In other change embodiments of the present invention, starting-up signal is alternatively high potential, and off signal is low potential, is not limited thereto.
, wherein it is desired to which explanation is, although in present embodiment, the first start control circuit 105 and the second start are controlled
Circuit 106 exists simultaneously, but the first start control circuit 105 and the second start control circuit 106 do not work simultaneously.Certainly,
In the present invention, other are changed in embodiments, and the first start control circuit 105 and the second start control circuit 106 can also be simultaneously
Work, that is to say that the second start control circuit 106 aids in the first start control circuit 105 to be operated, so that more flexible
When control power supply signal stops providing to power supply signal output end 107 and the time of load circuit (Fig. 1).
More specifically, referring to Fig. 3, Fig. 3 is the particular circuit configurations figure of on/off circuit 10 shown in Fig. 2.
Power switch 103 is a p-type FET (Metel-Oxide-Semiconductor, MOS), and its source S is electrical
The first connection end 103a (Fig. 2) is connected, or directly regard the source electrode as the first connection end 103a；Drain D electrically connects
The second connection end 103b (Fig. 2) is connect, or directly regard the drain D as the second connection end 103b；Grid G is electrically connected with
The control end 103c (Fig. 2), or directly it regard the grid G as control end 103c.It is preferred that the first protective resistance R1 is simultaneously
It is coupled between the source S and the grid G, to discharge the electric charge of grid G, prevents the grid G of the p-type metal-oxide-semiconductor due to electricity
Lotus is accumulative and causes overtension to be damaged.
Because power switch 103 is constituted for a p-type metal-oxide-semiconductor, it is known that, when power switch 103 receives a low-potential signal
When, such as during 0V signals, the p-type metal-oxide-semiconductor conducting so that source S electrically conducts with drain electrode, and then causes the first connection
End 103a and the second connection end 103b is electrically conducted, and power supply signal is then transmitted to power output end 107 from power input 101.
When power switch 103 receives a high potential signal, such as during 3.5V signals, the p-type metal-oxide-semiconductor cut-off, from
And make it that source S electrically disconnects with drain electrode, and then make it that the first connection end 103a and the second connection end 103b electrically disconnects, it is any
Power supply signal then can not be reliably transmitted to power output end 107 from power input 101, so that proof load circuit 30 is quiet
Electric consumption is zero.
Start control circuit 104 includes the first steering diode being sequentially connected in series since the first test side 104a (Fig. 2)
D1, the first current-limiting resistance R2, the first charging capacitor C1 and earth terminal GND.Wherein, the first steering diode D1 anode is not (
Sign) the first test side 104a is electrically connected with, negative electrode (not indicating) connects the first current-limiting resistance R2.Meanwhile, first
Any one node between current-limiting resistance R2 and the first charging capacitor C1 is used as the first control end 104b.First charging capacitor C1 energy
It is enough to complete charging within the very first time when receiving power supply signal, reach given voltage and then export corresponding starting-up signal,
Such as 9.8V.In addition, in present embodiment, start control circuit 104 is also parallel to first including a current-limiting resistance (not indicating)
Charging capacitor C1, for protecting the first charging capacitor C1.
Further, start control circuit 104 also includes the first voltage-regulator diode DZ1 and the first controlling switch Q1.Wherein,
First voltage-regulator diode DZ1 anode is electrically connected with the first control end 104b, and negative electrode is then electrically connected at the first control and opened
Q1 is closed, for providing a stable control voltage to the first controlling switch Q1.
First controlling switch Q1 is a N-type transistor, and its base stage b is electrically connected with the first voltage-regulator diode DZ1；Colelctor electrode e
It is electrically connected with earth terminal GND；Emitter stage c is connected to signal output part 104c by the resistance (not indicating) for being used as current limliting.
First controlling switch Q1 is under reverse turn-on voltages stable the first voltage-regulator diode DZ1, such as high potential control
State, so as to be transmitted ground signalling (0V) as starting-up signal to signal output part 104c.In addition, in present embodiment, opening
Machine control circuit 104 also includes base stage b and colelctor electrode e that a protective resistance (not indicating) is electrically connected at the first controlling switch,
For protecting base stage b, colelctor electrode e stored charges are prevented.
Further, start control circuit 104 also includes a self-locking diode D2, and its anode (not indicating) is electrically connected with power supply
Output end 107, negative electrode (not indicating) is electrically connected with the first current-limiting resistance R2.Self-locking diode D2 is used in hand switch 102 not
Power supply signal is continuously available to the first charging capacitor C1 when receiving input operation, so as to ensure the first start control circuit
104 persistently provide starting-up signal to power switch 103, it is ensured that power supply signal is persistently provided to load circuit 30, reaches self-locking work(
Energy.
The second steering diode D3 that first shutdown circuit 105 includes being sequentially connected in series since the second test side 105a, the
Two current-limiting resistance R3, the second charging capacitor C2 and earth terminal GND.Wherein, the second steering diode D3 anode (not indicating)
The second test side 105a is electrically connected with, negative electrode (not indicating) is electrically connected with the second current-limiting resistance R3.Second steering diode
D3 is used to power supply signal is inputted from the second test side 105a, and the second current-limiting resistance R3 is used to limit the second charging capacitor C2's
Charging current and charging interval.Second charging capacitor C2 is used to detect whether hand switch 102 continued for the second time and receive input
Operation, and when detecting hand switch 102 and continuing for the second time and receive input operation, second voltage signal is exported, it is described
Second voltage signal is high potential signal, such as 7V；The second time receiving input behaviour is not continued when detecting hand switch 102
When making, second voltage signal is not exported.
In present embodiment, the time of the second charging capacitor C2 charging completes was equal to for the second time.Thus, when the second charging
Electric capacity C2 is within the second time during charging complete, and its charging voltage reaches 7.0V；When the uncharged completions of the second charging capacitor C2,
The electric potential signal that second charging capacitor C2 provides 0V is exported.
Further, the first shutdown control circuit 105 also includes partial pressure voltage-regulator diode DZ2, the first partial pressure being sequentially connected in series
Resistance R4, the second protective resistance R5, and the partial pressure voltage-regulator diode DZ2, the first divider resistance R4, the second protective resistance R5 with
Second charging capacitor C2 is in parallel.Partial pressure voltage-regulator diode DZ2 is used to carry when the second charging capacitor C2 exports second voltage signal
For a stable reverse burning voltage, and the output stabilization after the first divider resistance R4 and the second protective resistance R5 partial pressures
Start in voltage, present embodiment, startup voltage is 0.7V.
First shutdown circuit 105, which also includes the second controlling switch Q2, the second controlling switch Q2, to be used for defeated according to voltage is started
Go out described control signal.
The N-type transistor of second controlling switch Q2 positions one, its base stage b is electrically connected with the protection electricity of the first divider resistance R4 and second
Any one node between R5 is hindered, for receiving the startup voltage；Colelctor electrode e is electrically connected with earth terminal GND；Emitter stage c is electrical
Connect the control signal output 105b or directly as control signal output 105b.Second protective resistance R5 is also in parallel
In the second controlling switch Q2 base stage b and colelctor electrode e two ends, for protecting the second controlling switch Q2.
It is in the conduction state when second switch Q2 receives startup voltage, so that the second controlling switch Q2 transmitting
Pole c electrically conducts with colelctor electrode e, that is to say that the second controlling switch Q2 emitter stage c current potential is equal to earth terminal GND current potentials, enters
And the control signal of low potential is exported to control signal output 105b.When the second controlling switch Q2 do not receive startup voltage and
During in cut-off state, control signal output 105b is not output control signals to.
Preferably, the first shutdown control circuit 105, which also includes one, prevents false touch Power Generation Road 1051, for ensureing that second charges
Electric capacity C2 does not export the startup voltage in uncharged completion.
Prevent false touch Power Generation Road 1051 from including the 3rd controlling switch Q3 and pressure limiting resistance R6, pressure limiting resistance R6 one end is connected to
Second steering diode D3 negative electrode, earth terminal GND, pressure limiting resistance R6 for the 3rd controlling switch Q3 for providing for other end connection
One referential reference voltage, wherein, the reference voltage be equal to the voltage that has of the second charging capacitor C2 charging completes with
3rd controlling switch Q3 conducting voltage sums, for example, 7.3-7.7V.
3rd controlling switch Q3 is P-type transistor, and its colelctor electrode e is electrically connected with the second charging capacitor C2 and connect relative to connection
Ground terminal GND one end；Base stage b is electrically connected with the relative connection earth terminal GND of pressure limiting resistance R6 one end；Emitter stage c is electrically connected with
Earth terminal GND.When the 3rd controlling switch Q3 colelctor electrode e is less than its base stage b voltage, it that is to say and obtained less than pressure limiting resistance R6
During the reference voltage obtained, the 3rd controlling switch Q3 conductings, thus, the second charging capacitor C2 simultaneously can not export startup voltage；
Two charging capacitor C2 are uncharged to be completed and when reaching 7V, when that is to say more than or equal to the reference voltage, the 3rd control
Switch Q3 and be in cut-off state, the voltage that the second charging capacitor C2 is then obtained using its charging provides second voltage signal, and then
Output starts voltage to the second controlling switch Q2, and effectively reaching prevents the false triggering of hand switch 102, that is to say not up to second
The input operation of time.
Second shutdown circuit 106 includes change-over circuit 1061, conversion signal output end 106b, micro-processor interface circuit 1062, opened
Dynamic signal output part 106c and the 4th controlling switch 1063.
In present embodiment, the 3rd test side 106a is electrically connected with the second steering diode D3 negative electrode, to pass through second
Steering diode D3 obtains power supply signal when hand switch 102 receives input operation.Change ground, the 3rd test side 106a
The second transmission end 102b (Fig. 2) of hand switch 102 can be directly electrically connected to, or passes through other steering diode D3 electricity
Property is connected to the second transmission end 102b of hand switch 102, is not limited thereto.
Change-over circuit 1061 is electrically connected between the 3rd test side 106a and conversion signal output end 106b, for by power supply
Signal is converted to described pulse signal according to the operating time of input operation, and is exported from signal output part 106b is changed.
Wherein, change-over circuit 1061 includes the transfer resistance R7 and conversion voltage-regulator diode DZ3 being sequentially connected in series from the 3rd test side 106a,
Wherein, conversion voltage-regulator diode DZ3 anode is electrically connected with earth terminal GND, and negative electrode is electrically connected with transfer resistance R7.
Specifically, referring to Fig. 4, it is the timing diagram of the pulse signal after the conversion of converted circuit 1061.Opening manually
When pass 102 receives the input operation of the very first time, the conversion of the first change-over circuit 1061 obtains first with the first pulsewidth P1
Pulse signal S1, wherein, the current potential of pulse signal is 3.5V；When hand switch 102 does not receive input operation, pulse signal
Current potential be 0V；When hand switch 102 receives the input operation of the second time, the conversion of the first change-over circuit 1061 is had
There is the second pulsewidth P2 the second pulse signal S2, wherein, the current potential of pulse signal is 3.5V, the second pulse of the second time of correspondence
Signal S2 width is three times of the pulse signal S1 of the correspondence very first time.It can be seen that, first, second pulse signal S1, S2 can divide
Not Biao Shi input operation operating time, and then the type of input operation, such as the first pulse signal S1 tables can be clearly shown
It is the very first time to show the operating time, that is to say power-on operation, and the second pulse signal S2 represents that the operating time was the second time, namely
It is power-off operation.In present embodiment, the pulse signal is Transistor-Transistor Logic level pulse signal.
Micro-processor interface circuit 1062 is used for the input operation received according to pulse signal S1, S2 correspondence identification hand switch 102
Operating time, and then recognize hand switch 102 whether receive power-off operation.And it is defeated when identifying pulse signal S2
Go out enabling signal to enabling signal output end 106c.Wherein, enabling signal is high potential, for example 3.5V.
4th controlling switch 1063 is a N-type transistor Q4, and its base stage b is electrically connected with by a divider resistance (not indicating)
Enabling signal output end 106c；Colelctor electrode e is electrically connected with earth terminal GND；Emitter stage c is electrically connected with the control signal output
106d or directly as control signal output 106d.Protected it is preferred that transistor Q4 base stage b and colelctor electrode e also include one
Resistance (not indicating) is protected, the base stage b for protecting transistor Q4 prevents from assembling electric charge.
It is in the conduction state when transistor Q4 receives enabling signal, so that transistor Q4 emitter stage c and collection
Electrode e electrically conducts, and that is to say that transistor Q4 emitter stage c current potential is equal to earth terminal GND current potentials, and then export low potential
Control signal is to control signal output 106d.When transistor Q4 does not receive enabling signal and is in cut-off state, not
Output control signals to control signal output 106d.
With reference to Fig. 3, the course of work of on/off circuit 10 is illustrated.
Upper electric start process：
When hand switch 102 receives the input operation of the lasting very first time, its first transmission end 102a and second is passed
Defeated end 102b electrically conducts, and power supply signal is by the first steering diode D1, the first current-limiting resistance R2 to the first charging capacitor C1
Charging, the first charging capacitor C1 then completes charging within the very first time and reaches given voltage 9.8V.First charging capacitor C1 finger
Voltage is determined by providing a cut-in voltage to the first controlling switch Q1 after the first voltage-regulator diode DZ1 reverse-conducting partial pressures, so that
So that the first controlling switch Q1 is turned on, so as to export the starting-up signal of a low potential to power switch 103.
Power switch 103 electrically conducts under the starting-up signal driving of low potential so that the first connection end 103a and second
Connection end 103b is electrically conducted, and power supply signal is then transmitted to power output end 107 and load circuit from power input 101
30, so as to be powered for load circuit 30.
Simultaneously, self-locking diode D2 continues power supply signal from power output end 107 to provide to the first charging capacitor
C1, it is ensured that the first charging capacitor C1 persistently maintains given voltage, so that the starting-up signal of the lasting output low potential of correspondence is to electricity
Source switch 103 so that power switch 103 persistently maintains conducting state, and then ensures that power supply signal continues from power input
101 transmit to power output end 107 and load circuit 30.
Thus, stop receiving input operation after 102 very first time of hand switch so that the first connection end 103a and the
Two connection end 103b electrically disconnect, but remain able to maintain power supply signal continuous transmission to load circuit by self-locking diode D2
30 be its power supply, reaches the purpose self locked after the completion of start.
Shutdown process：First shutdown control circuit 105.
When hand switch 102 receives the input operation of lasting second time, its first transmission end 102a and second is passed
Defeated end 102b electrically conducts, and power supply signal is by the second steering diode D3, the second current-limiting resistance R3 to the second charging capacitor C2
Charging.
Before the second charging capacitor C2 charging unfinisheds, prevent false touch Power Generation Road 1051 from ensureing the second controlling switch Q2 not
Startup voltage is received, so as to effectively prevent the false triggering of hand switch 102.
Second charging capacitor C2 completes charging within the second time and reached after given voltage 7.0V, the second charging capacitor C2's
Given voltage by providing a cut-in voltage to the second controlling switch Q2 after partial pressure voltage-regulator diode DZ2 reverse-conducting partial pressures, from
And cause the second controlling switch Q2 conductings, so as to export the control signal of a low potential to the first control end 104b.
When the first control end 104b receives the control signal of the low potential, the first charging capacitor C1 repid discharges are extremely
Low potential, thus, the first controlling switch Q1 cut-offs, so that from the off signal of signal output part 104c one high potentials of output to electricity
Source switch 103, power switch 103 then ends under the relation control of high potential, then the first connection end 103a and the second connection end
103b disconnects, and power supply signal stops transmitting to power output end 107 and load circuit 30.
Shutdown process：Second shutdown control circuit 106.
Also referring to Fig. 3 and Fig. 4, when hand switch 102 receives input operation, the first transmission end 102a and second
Transmission end 102b is electrically conducted, and power supply signal is transmitted to change-over circuit 1061 via hand switch 102.Change-over circuit 1061 then according to
First, second pulse signal S1, the S2 for obtaining correspondence time width is changed according to the time span for receiving power supply signal, such as it is right
The the first pulse signal S1 and the second pulse signal S2 of the second time of the very first time is answered, wherein, the very first time then corresponds to start
Operation, the second time then corresponds to power-off operation.
Change-over circuit 1061 transmits first, second pulse signal S1, S2 to micro- place by conversion signal output end 106b
Circuit 1062 is managed, when the identification of micro-processor interface circuit 1062 obtains the second pulse signal S2, then the output enabling signal is corresponded to opening
Dynamic signal output part 106c, the 4th controlling switch 1063 is in the conduction state under enabling signal control, so that correspondence output one
The control signal of low potential is to the first control end 104b.
When the first control end 104b receives the control signal of the low potential, the first charging capacitor C1 repid discharges are extremely
Low potential, thus, the first controlling switch Q1 cut-offs, so that from the off signal of signal output part 104c one high potentials of output to electricity
Source switch 103, power switch 103 then ends under the relation control of high potential, then the first connection end 103a and the second connection end
103b disconnects, and power supply signal stops transmitting to power output end 107 and load circuit 30.
It can be seen that, the second shutdown control circuit 106 is capable of the operating time of the input operation of automatic detection hand switch 102,
So as to judge its action type, and export corresponding in the given time according to being actually needed after corresponding operation is received
Control signal, reaches effect of timing shutdown.
Compared to prior art, the on/off circuit 10 passes through start control circuit 104, the first shutdown control circuit
105 can be realized according to the operating time of external user input operation power supply signal supply whether, reach on/off circuit 10
Multi-functional operation, operate it is more convenient.
Further, when the on/off circuit 10 control power supply signal stops providing to load circuit 30, it is ensured that power supply
Signal reliably stops transmission so that the static power consumption of load circuit 30 is relatively low, so that the work for improving droplet detector 1 is steady
The qualitative and life-span.
Again, the second shutdown control circuit 106 in the on/off circuit 10 can be according to input operation and operation
Time recognizes corresponding action type, and corresponding control signal is correspondingly exported in the scheduled time according to actual demand, and then
Reach that off signal output time is controllable, improve the flexibility of operation.
Wherein, the first shutdown control circuit 105 and the second shutdown control circuit 106 do not work simultaneously, that is to say first
The shutdown control circuit 106 of shutdown control circuit 105 and second can provide control signal to the control electricity that shuts down in different time respectively
Road 104, realizes and stops providing power supply signal to load circuit 30 (Fig. 1) so as to reach droplet detector 1 (Fig. 1) shutdown.
It is understood that those skilled in the art can also do other changes etc. in spirit of the invention is used in the present invention's
Design, without departing from the technique effect of the present invention.These changes done according to present invention spirit, should all be included in
Within scope of the present invention.
Claims (16)
1. a kind of on/off circuit, it is characterised in that including power input, manual switch, power switch, start control electricity
Road, the first shutdown control circuit and power output end,
The power input receives a power supply signal；
The power output end connects a load circuit；
The hand switch is used to receive external user input operation, and the duration of the input operation is respectively the very first time
Or second time；
Start control circuit exports a starting-up signal to power supply when detecting that the hand switch input operation continues the very first time
Switch；
First shutdown control circuit exports a control signal extremely when detecting that the hand switch input operation continued for the second time
The start control circuit, the start control circuit exports an off signal to power switch according to the control signal；With
And
The power switch is electrically connected with the power input, the power output end and the start control circuit, and
The starting-up signal and off signal are received from the start control circuit, so that corresponding selection control power input and institute
State power output end to electrically conduct or electrically disconnect, the very first time was different from for the second time.
2. on/off circuit as claimed in claim 1, it is characterised in that the power switch includes the first connection end, second
Connection end and control end, wherein, the first connection end is electrically connected with the power input, and second connection end is electrically connected with
The power output end, the control end is electrically connected with the start control circuit, receives the starting-up signal or shutdown letter
Number, when receiving the starting-up signal, when being electrically conducted between the power input and power output end, the power supply letter
Number provide to the power output end；When receiving the starting-up signal, the power input and power output end are electrical
During disconnection, power supply signal stops transmitting to the power output end.
3. on/off circuit as claimed in claim 1, it is characterised in that the start control circuit include the first test side,
First control end, signal output part and from lock end, first test side are electrically connected with the hand switch, the first control end
The control signal that first shutdown control circuit is used to receive its output is connected, the signal output part connects the power supply and opened
Close, it is described to be electrically connected with the power output end from lock end for exporting the corresponding starting-up signal or the off signal,
For receiving the power supply signal of the power output end and exporting the starting-up signal according to the power supply signal continuation.
4. on/off circuit as claimed in claim 3, it is characterised in that the start control circuit is included from the first test side
Start the first steering diode, the first current-limiting resistance, the first charging capacitor and the earth terminal being sequentially connected in series, first charging
Electric capacity is used to charge to given voltage in the very first time to drive the start control circuit to export the starting-up signal.
5. on/off circuit as claimed in claim 4, it is characterised in that the start control circuit also includes the pole of a self-locking two
Pipe, the anode of the self-locking diode is electrically connected with the power output end, and negative electrode is electrically connected with first charging capacitor, institute
Stating self-locking diode is used to power supply signal is continuously available into described first when the hand switch does not receive input operation
Charging capacitor, it is ensured that first start control circuit persistently provides the starting-up signal to the power supply module.
6. on/off circuit as claimed in claim 3, it is characterised in that the start control circuit also includes the first voltage stabilizing two
Pole pipe and the first controlling switch, the anode of first voltage-regulator diode are electrically connected with first control end, described first
The negative electrode of voltage-regulator diode is then electrically connected at first controlling switch, and first voltage-regulator diode is used to provide a stabilization
Control voltage to the first controlling switch.
7. on/off circuit as claimed in claim 1, it is characterised in that first shutdown control circuit includes the second detection
End and control signal output, second test side are electrically connected with the hand switch, are connect for receiving the hand switch
The power supply signal provided when receiving input operation, the control signal output is electrically connected with the shutdown control circuit, institute
State the first shutdown circuit and the control signal is exported to the shutdown control circuit by the control signal output.
8. on/off circuit as claimed in claim 7, it is characterised in that first shutdown circuit is included from the described second inspection
The second steering diode and the second charging capacitor of end series connection are surveyed, second steering diode is used to cause power supply signal from institute
State hand switch to provide to second charging capacitor, second charging capacitor is used for the institute for detecting that the hand switch receives
Whether the duration for stating input operation was the second time, and when the input operation duration was the second time, control
Make first shutdown circuit and export the control signal.
9. on/off circuit as claimed in claim 8, it is characterised in that the second charging capacitor charging complete and reach
The time of given voltage was equal to for the second time, and the given voltage correspondence starts the first shutdown circuit output control letter
Number startup voltage.
10. on/off circuit as claimed in claim 9, its feature is in first shutdown circuit also includes the second control and opened
The partial pressure voltage-regulator diode and the first divider resistance for closing and being sequentially connected in series, the partial pressure voltage-regulator diode and the first divider resistance are used
Described startup voltage is provided to the second controlling switch in the voltage according to the second charging capacitor, and the second controlling switch is used for foundation
Control signal described in the startup voltage output, it is in the conduction state when second switch receives startup voltage, so that
Obtain the second controlling switch and export the control signal to control signal output, when second controlling switch does not receive startup
Voltage and in cut-off state when, do not output control signals to signal output part.
11. on/off circuit as claimed in claim 10, it is characterised in that first shutdown circuit, which also includes one, to be prevented from missing
Triggers circuit, for ensureing that second charging capacitor does not provide the startup voltage in uncharged completion to the second control
Switch, prevents false touch Power Generation Road from including the 3rd controlling switch and pressure limiting resistance, and the pressure limiting resistance is used to be the 3rd controlling switch
A reference voltage is provided, the 3rd controlling switch detects that the charging voltage of second charging capacitor is less than the reference voltage
When, the 3rd controlling switch controls first shutdown circuit not provide the startup voltage to the second controlling switch, institute
When the charging voltage for stating the 3rd controlling switch detection second charging capacitor is equal to or more than the reference voltage, the described 3rd
Controlling switch controls first shutdown circuit to provide the startup voltage to the second controlling switch.
12. on/off circuit as claimed in claim 11, it is characterised in that the pressure limiting resistance obtains reference voltage and is equal to the
Voltage and the 3rd controlling switch conducting voltage sum that two charging capacitor charging completes have.
13. on/off circuit as claimed in claim 1, it is characterised in that the on/off circuit also includes the second shutdown control
Circuit processed, including the 3rd test side, change-over circuit, conversion signal output end, micro-processor interface circuit, enabling signal output end, the 4th
Controlling switch and control signal output, the 3rd test side, which is electrically connected with hand switch, to be used to obtain power supply signal, institute
Change-over circuit is stated to be electrically connected between the 3rd test side and the conversion signal output end, for by the power supply signal according to
Described pulse signal is converted to according to the operating time of input operation, and from conversion signal output end output, it is described micro-
The duration for the input operation that process circuit is received according to the pulse signal correspondence identification hand switch, and when identification is obtained
When obtaining for the second time, the micro-processor interface circuit exports enabling signal to enabling signal output end and controls the 4th controlling switch defeated
Go out the control signal to the shutdown control circuit.
14. on/off circuit as claimed in claim 13, it is characterised in that the width of the pulse signal is opened manually with described
The duration that pass receives input operation is corresponding.
15. on/off circuit as claimed in claim 13, it is characterised in that the first pulse signal of the very first time correspondence,
To institute's the second pulse signal of the second time correspondence, the first pulse signal represents corresponding input operation type, and the arteries and veins respectively
Signal is rushed for level pulse signal.
16. a kind of droplet detector, including on/off circuit as described in claim 1-15 any one, power supply module and
Load circuit, wherein, power supply module is used to export the power supply signal, and load circuit is used for receive the power supply signal normal
Work.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/094035 WO2018027502A1 (en) | 2016-08-08 | 2016-08-08 | Switch-on/off circuit and droplet detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107112989A true CN107112989A (en) | 2017-08-29 |
| CN107112989B CN107112989B (en) | 2020-11-03 |
Family
ID=59676335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680004621.4A Expired - Fee Related CN107112989B (en) | 2016-08-08 | 2016-08-08 | Switching on and switching off circuit and fog drop detector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107112989B (en) |
| WO (1) | WO2018027502A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979363A (en) * | 2017-12-26 | 2018-05-01 | 广州视源电子科技股份有限公司 | On/off circuit and electronic equipment |
| CN115580200A (en) * | 2021-07-06 | 2023-01-06 | 南京泉峰科技有限公司 | Electric tool and drive control circuit thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539970A (en) * | 2018-05-23 | 2018-09-14 | 杭州先临爱打印科技有限公司 | Smart electronics power switch and the 3D printer for configuring the switch |
| WO2019232752A1 (en) * | 2018-06-07 | 2019-12-12 | 深圳市柔宇科技有限公司 | Electronic apparatus, control circuit thereof, and control method |
| CN115664183B (en) * | 2022-11-21 | 2023-04-07 | 广东东菱电源科技有限公司 | Continuous startup and shutdown non-overshoot circuit |
| CN116400792B (en) * | 2023-06-08 | 2023-10-10 | 安翰科技(武汉)股份有限公司 | Switching on and shutting down linkage circuit, AI auxiliary assembly and medical equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204119198U (en) * | 2014-08-29 | 2015-01-21 | 青岛歌尔声学科技有限公司 | A kind of single-button on/off circuit and one wear display device |
| CN105223858A (en) * | 2014-06-13 | 2016-01-06 | 深圳市双赢伟业科技股份有限公司 | A kind of switching on and shutting down control circuit of electronic equipment |
| CN105743476A (en) * | 2016-01-26 | 2016-07-06 | 广东宝莱特医用科技股份有限公司 | Turn-on and turn-off circuit |
| CN205981249U (en) * | 2016-08-08 | 2017-02-22 | 深圳市大疆创新科技有限公司 | Switching on and shutting down circuit and droplet detector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901664B (en) * | 2015-06-01 | 2018-11-09 | 深圳市安保科技有限公司 | A kind of on/off circuit and method for start-up and shutdown of software and hardware combining |
| CN105094263A (en) * | 2015-08-14 | 2015-11-25 | 浪潮软件集团有限公司 | Startup and shutdown linkage control device and system |
-
2016
- 2016-08-08 CN CN201680004621.4A patent/CN107112989B/en not_active Expired - Fee Related
- 2016-08-08 WO PCT/CN2016/094035 patent/WO2018027502A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223858A (en) * | 2014-06-13 | 2016-01-06 | 深圳市双赢伟业科技股份有限公司 | A kind of switching on and shutting down control circuit of electronic equipment |
| CN204119198U (en) * | 2014-08-29 | 2015-01-21 | 青岛歌尔声学科技有限公司 | A kind of single-button on/off circuit and one wear display device |
| CN105743476A (en) * | 2016-01-26 | 2016-07-06 | 广东宝莱特医用科技股份有限公司 | Turn-on and turn-off circuit |
| CN205981249U (en) * | 2016-08-08 | 2017-02-22 | 深圳市大疆创新科技有限公司 | Switching on and shutting down circuit and droplet detector |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979363A (en) * | 2017-12-26 | 2018-05-01 | 广州视源电子科技股份有限公司 | On/off circuit and electronic equipment |
| CN107979363B (en) * | 2017-12-26 | 2021-04-23 | 广州视源电子科技股份有限公司 | Switching on and switching off circuit and electronic equipment |
| CN115580200A (en) * | 2021-07-06 | 2023-01-06 | 南京泉峰科技有限公司 | Electric tool and drive control circuit thereof |
| CN115580200B (en) * | 2021-07-06 | 2024-04-26 | 南京泉峰科技有限公司 | Electric tool and drive control circuit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018027502A1 (en) | 2018-02-15 |
| CN107112989B (en) | 2020-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107112989A (en) | On/off circuit and droplet detector | |
| CN101577419A (en) | Selflocking direct current supply short circuit protection circuit | |
| US11996723B2 (en) | Driving circuit for switch and battery control circuit using the same | |
| CN113169663A (en) | Drive circuit of channel switch, charging control method and charger | |
| CN205981249U (en) | Switching on and shutting down circuit and droplet detector | |
| CN208158221U (en) | A kind of gate inhibition's power supply system | |
| CN101937016A (en) | Low voltage promoting device | |
| CN105897240A (en) | Single-button soft on-off circuit with hardware forced power-off function | |
| CN205846852U (en) | A kind of ups power device | |
| CN207588827U (en) | A kind of self-locking power switch device | |
| CN218103579U (en) | Light touch switch lawn lamp control chip | |
| KR100841440B1 (en) | Apparatus for suppling power to controller | |
| CN211321011U (en) | Relay control circuit and electronic equipment | |
| CN103841711B (en) | A kind of LED emergence lighting lamp and drive circuit thereof | |
| CN211396993U (en) | Pulse driving circuit of magnetic latching electronic lock and magnetic latching electronic lock | |
| CN100459431C (en) | Circuit for optimizing Zener diode bias current | |
| CN106226681A (en) | A kind of power circuit failure detector circuit and electronic equipment | |
| CN206805360U (en) | A kind of computer with illumination functions | |
| CN207691778U (en) | A kind of skin care device | |
| CN117410933B (en) | Overvoltage protection circuit and energy storage power supply | |
| CN205864052U (en) | A kind of ups power device | |
| CN214380243U (en) | Integrated circuit for electric water pumping device and electric water pumping device | |
| CN106533146B (en) | Soft start switch circuit and electronic device | |
| CN218974798U (en) | Startup and shutdown circuit and electronic equipment | |
| CN218413260U (en) | Key control circuit |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |