CN104079278B - By-pass switch control device - Google Patents
By-pass switch control device Download PDFInfo
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- CN104079278B CN104079278B CN201310096628.1A CN201310096628A CN104079278B CN 104079278 B CN104079278 B CN 104079278B CN 201310096628 A CN201310096628 A CN 201310096628A CN 104079278 B CN104079278 B CN 104079278B
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- pass switch
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- control device
- transistor
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Abstract
The present invention relates to a kind of by-pass switch control device, for controlling by the break-make of battery and motor major loop in series, by-pass switch control device includes by-pass switch, power supply, microcontroller, transistor；By-pass switch, power supply, microcontroller are in series and constituted the other loop for being parallel to motor two ends, and microcontroller has the output end of several test sides and the signal output control signal detected according to test side；Strings of transistors is connected in major loop, and it has the control end for controlling its break-make in major loop, and the output end of microcontroller is connected with the control end of transistor.The present invention replaces the switch in major loop to be controlled by by-pass switch, and electric current is smaller in other loop, can be prevented effectively from and the problem of existing switch failure rate of switch is high, EMC interference is larger, cost is higher is set in major loop.
Description
Technical field
Circuit, especially a kind of circuit controlled with by-pass switch are controlled the present invention relates to one kind.
Background technology
In the major loop being made up of battery and motor, the break-make control that a switch carries out loop is generally sealed in.As the master
When loop is applied in electric tool, it is desirable to which the switch sealed in has consistent voltage x current value with electric tool, that is, switchs
Rated voltage and rated current it is larger.There is following defect in this circuit：
1st, in action there is Arcing phenomenon in the switch of high-voltage great-current, and the crash rate of switch is higher；
2nd, in some specific occasions, switch is needed to lead to remotely by lead, and the EMC interference of one side complete machine is increased,
On the other hand larger electric current needs thicker lead, and cost can also increase.
The content of the invention
The switch in major loop is replaced to be controlled so as to avoid by by-pass switch it is an object of the invention to provide a kind of
The by-pass switch control device of drawbacks described above.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of by-pass switch control device, it is described for controlling by the break-make of battery and motor major loop in series
By-pass switch control device include by-pass switch, power supply, microcontroller, transistor；Described by-pass switch, described electricity
Source, described microcontroller are in series and constitute the other loop at the motor two ends described in being parallel to, and described microcontroller has
Several test sides and the output end of the signal output control signal detected according to described test side；Described transistor
It is connected in series with described major loop, it has the control end for controlling its break-make in described major loop, described microcontroller
Output end be connected with the control end of described transistor.
It is preferred that, described microcontroller has the test side described in four, and the test side described in four is respectively switch
Signal detection end, temperature detection end, voltage detecting end, current detecting end, described switching signal test side pass through switching signal
Detection module is connected with described by-pass switch and detects its break-make, and described temperature detection end is connected with temperature detection mould
Block, described voltage detecting end is connected with voltage detection module, described current detecting end by current detection module with it is described
Major loop be connected.
It is preferred that, described power supply is 5V power supplys.
It is preferred that, also it is in series with resistance in described major loop.
It is preferred that, described transistor is FET, the grid and described microcontroller of described FET
Output end is connected, and the source electrode of described FET and drain electrode are connected in described major loop.
It is preferred that, it is connected with drive module between described microcontroller and described transistor.
It is preferred that, the two ends of described motor are parallel with diode, the positive pole and described motor of described diode
Negative pole is connected, and the negative pole of described diode is connected with the positive pole of described battery.
It is preferred that, described by-pass switch control device is arranged in chain saw and drives described chain saw.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：The present invention passes through bypass
Switch in switch in place major loop is controlled, and electric current is smaller in other loop, can be prevented effectively from and be set in major loop
The problem of existing switch failure rate of switch is high, EMC interference is larger, cost is higher.
Brief description of the drawings
Accompanying drawing 1 is the circuit theory diagrams of the by-pass switch control device of the present invention.
Accompanying drawing 2 is the workflow diagram of the by-pass switch control device of the present invention.
In the figures above：1st, battery；2nd, motor；3rd, by-pass switch；4th, power supply；5th, microcontroller；6th, transistor；7th, it is electric
Resistance；8th, switching signal detection module；9th, temperature detecting module；10th, voltage detection module；11st, current detection module；12nd, drive
Module；13rd, diode.
Embodiment
The invention will be further described for shown embodiment below in conjunction with the accompanying drawings.
Embodiment one：Referring to shown in accompanying drawing 1.
A kind of by-pass switch control device, for controlling the break-make by battery 1 and the major loop in series of motor 2.Should
By-pass switch control device be may be disposed in electric tool to be driven control to it, for example, be arranged in chain saw, and motor 2 is used
In driving chain saw work.
The by-pass switch control device includes power supply 4, microcontroller 5, the transistor 6 that by-pass switch 3, voltage are 5V.It is other
Way switch 3, power supply 4, microcontroller 5 are in series and constituted the other loop for being parallel to the two ends of motor 2 successively.Microcontroller 5 has
Four test sides and the output end of the signal output control signal detected according to test side.Wherein, four test side difference
For switching signal test side, temperature detection end, voltage detecting end, current detecting end.Switching signal test side passes through switching signal
Detection module 8 is connected with by-pass switch 3 and detects its break-make, and temperature detection end is connected with temperature detecting module 9, voltage detecting
End is connected with voltage detection module 10, and current detecting end is connected by current detection module 11 with major loop.
Transistor 6 is connected in series with major loop, and it has the control end for controlling its break-make in major loop, microcontroller 5
Output end is connected by drive module 12 with the control end of transistor 6.In the present embodiment, transistor 6 uses FET,
The grid of FET is connected with the output end of microcontroller 5, and the source electrode of FET and drain electrode are connected in major loop.
Resistance 7 is also in series with major loop, other loop is then parallel to the two ends of resistance 7, transistor 6 and motor 2.Motor 2
Two ends be also parallel with diode 13, the positive pole of diode 13 is connected with the negative pole of motor 2, the negative pole and battery of diode 13
1 positive pole is connected.
Referring to shown in accompanying drawing 2, the workflow of the by-pass switch control device is as follows：By-pass switch 3 is placed in before power supply 4
End, and major loop controls its break-make by transistor 6.When pressing by-pass switch 3,5V power supply 4 is produced, and now other loop connects
Logical, microcontroller 5 is started working.Detectable voltage signals, current signal, temperature signal and switching signal first, if these are believed
Number occur abnormal, then the output control signal of microcontroller 5 makes transistor 6 disconnect major loop, and now motor 2 is stalled, and needs pine
By-pass switch 3 is opened after start repeats said process again after abnormality releasing；If above-mentioned signal is normal, major loop is normal
Work.In the state of major loop is in normal work, if unclamping by-pass switch 3, microcontroller 5 detects by-pass switch 3
Cut-off signal, then output control signal transistor 6 is disconnected major loop, then cut off 5V power supply 4.
Because by-pass switch 3 is placed in before 5V power supply 4, the size of current in whole other loop is tens milliamperes, therefore can be with
From rated voltage and the less by-pass switch 3 of electric current, so as to avoid sealing in big voltage and the switch of high current in major loop
And the problem of bring.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (7)
1. a kind of by-pass switch control device, for controlling by the break-make of battery and motor major loop in series, its feature
It is：Described by-pass switch control device includes by-pass switch, power supply, microcontroller, transistor；Described by-pass switch,
Described power supply, described microcontroller are in series and constituted the other loop for being parallel to described motor two ends successively, described
Microcontroller has the output end of several test sides and the signal output control signal detected according to described test side；
Described strings of transistors is connected in described major loop, and it has the control end for controlling its break-make in described major loop, institute
The output end for the microcontroller stated is connected with the control end of described transistor；Described microcontroller has described in four
Test side, the test side described in four is respectively switching signal test side, temperature detection end, voltage detecting end, current detecting end,
Described switching signal test side is connected with described by-pass switch by switching signal detection module and detects its break-make, institute
The temperature detection end stated is connected with temperature detecting module, and described voltage detecting end is connected with voltage detection module, described electricity
Stream test side is connected by current detection module with described major loop；
Described by-pass switch is placed in the front end of described power supply, and described major loop is by described transistor controls that it leads to
It is disconnected；When pressing described by-pass switch, power supply is produced, and now described other loop is connected, and described microcontroller starts work
Make, first detectable voltage signals, current signal, temperature signal and switching signal, it is described if exception occur in these signals
Microcontroller output control signal makes described transistor disconnect described major loop, now described motor stalling, and needs
Described by-pass switch is unclamped after start repeats said process again after abnormality releasing；If above-mentioned signal is normal, institute
The major loop normal work stated, in the state of described major loop is in normal work, if unclamping described by-pass switch,
Micro- described controller detects the cut-off signal of described by-pass switch, then output control signal disconnects described transistor
Described major loop, then cut off described power supply.
2. by-pass switch control device according to claim 1, it is characterised in that：Described power supply is 5V power supplys.
3. by-pass switch control device according to claim 1, it is characterised in that：Electricity is also in series with described major loop
Resistance.
4. by-pass switch control device according to claim 1, it is characterised in that：Described transistor is FET,
The grid of described FET is connected with the output end of described microcontroller, the source electrode of described FET and drain electrode
It is connected in described major loop.
5. the by-pass switch control device according to claim 1 or 4, it is characterised in that：Described microcontroller with it is described
Transistor between be connected with drive module.
6. by-pass switch control device according to claim 1, it is characterised in that：The two ends of described motor are parallel with two
Pole pipe, the positive pole of described diode is connected with the negative pole of described motor, the negative pole of described diode and described electricity
The positive pole in pond is connected.
7. by-pass switch control device according to claim 1, it is characterised in that：Described by-pass switch control device is set
It is placed in chain saw and drives described chain saw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096628.1A CN104079278B (en) | 2013-03-25 | 2013-03-25 | By-pass switch control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096628.1A CN104079278B (en) | 2013-03-25 | 2013-03-25 | By-pass switch control device |
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| Publication Number | Publication Date |
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| CN104079278A CN104079278A (en) | 2014-10-01 |
| CN104079278B true CN104079278B (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310096628.1A Active CN104079278B (en) | 2013-03-25 | 2013-03-25 | By-pass switch control device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548871A (en) * | 2015-12-09 | 2016-05-04 | 许继集团有限公司 | MMC sub-module bypass switch state detection device and MMC sub-module bypass switch |
| CN107305356B (en) * | 2016-04-22 | 2019-11-08 | 比亚迪股份有限公司 | A kind of control switch application circuit and its fault detection guard method |
| CN107102183B (en) * | 2017-06-20 | 2023-07-21 | 海盐新跃电器有限公司 | Circuit for controlling hardware detection waveform output and physical on-off method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702603A (en) * | 2009-12-01 | 2010-05-05 | 山东大学 | A battery-powered DC motor soft starter |
| CN102315806A (en) * | 2010-07-06 | 2012-01-11 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5579753B2 (en) * | 2009-02-13 | 2014-08-27 | コーニンクレッカ フィリップス エヌ ヴェ | Electromagnetic ballast for gas discharge lamp |
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- 2013-03-25 CN CN201310096628.1A patent/CN104079278B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702603A (en) * | 2009-12-01 | 2010-05-05 | 山东大学 | A battery-powered DC motor soft starter |
| CN102315806A (en) * | 2010-07-06 | 2012-01-11 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
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| Publication number | Publication date |
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| CN104079278A (en) | 2014-10-01 |
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