CN107947113A - One kind protection drive module - Google Patents
One kind protection drive module Download PDFInfo
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- CN107947113A CN107947113A CN201711178036.9A CN201711178036A CN107947113A CN 107947113 A CN107947113 A CN 107947113A CN 201711178036 A CN201711178036 A CN 201711178036A CN 107947113 A CN107947113 A CN 107947113A
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- circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/008—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for protective arrangements according to this subclass
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Abstract
The present invention relates to one kind to protect drive module, belongs to electronic circuit technology field.The protection drive module, applied to breaker of plastic casing, the breaker of plastic casing includes：Breaker body and mutual inductor；The protection drive module includes：Pcb board and the circuit interface and drive circuit being arranged on the pcb board.The circuit interface is used to be connected with the mutual inductor and the breaker body, and the drive circuit is connected with the circuit interface, and the drive circuit includes：Power circuit and comparison circuit, the power circuit are connected with the comparison circuit.It is that the comparison circuit is powered that the power circuit, which is used for the voltage that the voltage conversion that the mutual inductor gathers is 5V,.When using the protection drive module, it need to only be accessed in existing breaker of plastic casing, which adds reliability, security and service life of breaker of plastic casing etc., while also improves the breaking capacity of breaker of plastic casing.
Description
Technical field
The invention belongs to electronic circuit technology field, and in particular to one kind protection drive module.
Background technology
With economic and science and technology development, demand for security of the people to electricity consumption is higher and higher, and breaker of plastic casing is as electricity consumption
Important Components in safety, it can automatically cut off electric current after electric current exceedes escape setting.Currently used plastic housing open circuit
Device is the size that electric current is detected by mutual inductor, is sent to micro-control unit and carries out computing, then the electricity by being set with user
Flow valuve is compared, and if more than user's setting electric current value when will drive electromagnetic actuator to act, so as to fulfill plastic housing open circuit
The sub-switching operation of device.But when short circuit occurs in breaker of plastic casing, electric current can become very big, be typically rated current
14-16 times, even more high, during going to realize sub-switching operation by micro-control unit comparison operation, breaker of plastic casing will
The high current of some time is born, contact is easily burnt out.Therefore, people propose breaker of plastic casing the requirement of higher, for example,
In directions such as security reliability, high breaking, high accuracy.
The content of the invention
In consideration of it, it is an object of the invention to provide one kind to protect drive module, effectively to improve the above problem.
What the embodiment of the present invention was realized in：
An embodiment of the present invention provides one kind to protect drive module, applied to breaker of plastic casing, the breaker of plastic casing bag
Include：Breaker body and mutual inductor.The protection drive module includes：Pcb board and the circuit being arranged on the pcb board connect
Mouth and drive circuit.The circuit interface is used to be connected with the mutual inductor and the breaker body.The drive circuit with
The circuit interface connection, the drive circuit include：Power circuit and comparison circuit, the power circuit and the comparison are electric
Road connects.It is that the comparison circuit supplies that the power circuit, which is used for the voltage that the voltage conversion that the mutual inductor gathers is 5V,
Electricity.The voltage that the comparison circuit is used to gather the mutual inductor gathers compared with reference voltage in the mutual inductor
Voltage when being more than the reference voltage, high level is exported, to drive the breaker body separating brake.
In optional embodiment of the present invention, the comparison circuit includes：Comparator, the first sample circuit and the second sampling
Circuit, first sample circuit are connected with the first input end of the comparator, second sample circuit and the comparison
The second input terminal connection of device, the output terminal of the comparator are connected with the circuit interface, and the output terminal of the comparator is also
It is connected with the first input end, first sample circuit is also connected with the circuit interface, for being adopted to the mutual inductor
The voltage of collection is sampled, and second sample circuit is also connected with one first power supply, for the voltage to first power supply
Sampled, the power end of the comparator is connected with the power circuit.
In optional embodiment of the present invention, first sample circuit includes：First resistor, second resistance and the 3rd electricity
Resistance, the first resistor and the second resistance are in parallel, and one end of the first resistor is connected with the circuit interface, and described the
The other end of one resistance is connected with the first input end of the comparator and one end of the 3rd resistor respectively, the 3rd electricity
The other end ground connection of resistance.
In optional embodiment of the present invention, second sample circuit includes：4th resistance, the 5th resistance and the first electricity
Hold, one end of first capacitance is connected with one end of the 4th resistance, the other end and the comparison of the 4th resistance
Second input terminal of device is connected with one end of the 5th resistance, and the other end of the 5th resistance is another with first capacitance
One end connects, and the other end of the 5th resistance is also grounded, and one end of the 4th resistance is also connected with first power supply.
In optional embodiment of the present invention, the comparison circuit further includes：Pull-up resistor, one end of the pull-up resistor
It is connected with a second source, the other end of the pull-up resistor is connected with the output terminal of the comparator.
In optional embodiment of the present invention, the comparison circuit further includes：First isolating diode, first isolation
The positive terminal of diode is connected with the output terminal of the comparator, and negative pole end and the circuit interface of first isolating diode connect
Connect.
In optional embodiment of the present invention, the power circuit includes：Input circuit and conversion chip, the input electricity
Road is connected with the input terminal of the conversion chip, the input circuit also with the circuit interface circuit, the conversion chip
Output terminal is connected with the comparison circuit, and the voltage conversion that the input circuit is used to gather the mutual inductor is 12V voltages
The conversion chip is conveyed to, it is 5V voltage outputs that the conversion chip, which is used for the 12V voltage conversions,.
In optional embodiment of the present invention, the input circuit includes：Second isolating diode, voltage-stabiliser tube and the first storage
Energy capacitance, the cathode of second isolating diode are connected with the circuit interface, the anode point of the second isolation diode
One end, one end of first storage capacitor and the input terminal of the conversion chip not with the voltage-stabiliser tube are connected, described steady
The other end ground connection of pressure pipe, the other end ground connection of first storage capacitor.
In optional embodiment of the present invention, the input circuit further includes：First filter capacitor, first filtered electrical
The anode that one end of appearance isolates diode with described second connects, the other end ground connection of first filter capacitor.
In optional embodiment of the present invention, the power circuit further includes：Output filtering accumulator, the output filter
Ripple accumulator is connected with the output terminal of the conversion chip.
Protection drive module provided in an embodiment of the present invention, when using the protection drive module, need to only be accessed existing
In some breaker of plastic casing, i.e., on the basis of the control mode (using micro-control unit) of existing breaker of plastic casing, increase
One protection drive module based on pure hardware circuit.Due to the protection drive module with existing control mode (using micro-
Control unit) it is independent part, in addition, which is realized by devices at full hardware circuit, without software section,
So that the control mode prior to by sampling, handling, computing is compared and sends the existing control mode of drive signal (uses
Micro-control unit), therefore, reliability, security and service life of the breaker of plastic casing etc. are added, is also improved at the same time
The breaking capacity of breaker of plastic casing.Wherein, specific process is that the voltage conversion that power circuit gathers mutual inductor is the electricity of 5V
Press and power for the comparison circuit, the voltage that comparison circuit gathers the mutual inductor is compared with reference voltage, described
When the voltage of mutual inductor collection is more than the reference voltage, high level is exported, to drive the breaker body separating brake.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that or understood by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be by being write
Specifically noted structure is realized and obtained in specification, claims and attached drawing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.By the way that shown in attached drawing, above and other purpose of the invention, feature and advantage will become apparent from.In whole
Identical reference numeral indicates identical part in attached drawing.Deliberately attached drawing, emphasis are not drawn by actual size equal proportion scaling
It is the purport for showing the present invention.
Fig. 1 shows a kind of structure diagram for protecting drive module provided in an embodiment of the present invention.
Fig. 2 shows a kind of circuit diagram of circuit interface provided in an embodiment of the present invention.
Fig. 3 shows a kind of circuit diagram of comparison circuit provided in an embodiment of the present invention.
Fig. 4 shows a kind of circuit diagram of power circuit provided in an embodiment of the present invention.
Icon：100- protects drive module；110- circuit interfaces；120- drive circuits；121- comparison circuits；
The first sample circuits of 1211-；The second sample circuits of 1212-；122- power circuits；1221- input circuits；1222- is exported
Filter accumulator.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " interior ",
The orientation or position relationship of instructions such as " outer " be based on orientation shown in the drawings or position relationship, or the invention product use
When the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or dark
Show relative importance.
In the description of the present invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirect by intermediary
It is connected, can is the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Since current breaker of plastic casing is all size that electric current is detected by current transformer, and it is sent to microcontroller list
Member carries out computing, then by by the electric current compared with the current value that user sets, during if more than user's setting electric current value
Electromagnetic actuator will be driven to act, so as to fulfill the sub-switching operation of breaker of plastic casing.But occur in breaker of plastic casing short
When road, electric current can become very big, be typically 14-16 times of rated current, even more high, is passing through micro-control unit ratio
Gone compared with computing during realizing sub-switching operation, breaker of plastic casing will bear the high current of some time, and contact is easily burnt out.By
In micro-control unit is when the size of the electric current detected to current transformer carries out computing, compares, mainly by software
(program) needs to expend certain duration in this course, and high current can cause the breaker of plastic casing come what is realized
Temperature is enterprising, and then causes the temperature of micro-control unit to rise, and triggers operation program the risk of mess code occur so as to exist.In view of
This, the present invention provides a kind of protection drive module based on pure hardware circuit to solve the above problems.
In consideration of it, an embodiment of the present invention provides a kind of protection drive module 100 being applied in breaker of plastic casing, such as scheme
Shown in 1.The protection drive module 100 includes：Pcb board (being to show in figure) and the circuit interface being arranged on the pcb board
110 and drive circuit 120.Wherein, the breaker of plastic casing includes：Breaker body and mutual inductor (not shown).
Wherein, when using the protection drive module 100, need to only be accessed in existing breaker of plastic casing, i.e.,
On the basis of the control mode (using micro-control unit) of some breaker of plastic casing, a guarantor based on pure hardware circuit is added
Protect drive module 100.Since the protection drive module 100 and existing control mode (using micro-control unit) are independent portions
Point, in addition, which is realized by devices at full hardware circuit, without software section so that the control mode is excellent
Prior to by sampling, handling, computing is compared and sends the existing control mode (using micro-control unit) of drive signal, because
This, adds reliability, security and service life of the breaker of plastic casing etc., while also improves point of breaker of plastic casing
Cutting capacity.
Wherein, the pcb board be used for circuit interface 110 and drive circuit 120 are installed so that circuit interface 110 and
Drive circuit 120 is integrated on the pcb board, reduces volume, enhances practicality and applicability.Alternatively, which connects
Mouth 110 and drive circuit 120 are mounted on the same side of the pcb board, for example, positive.Wherein, which can select
The circuit board of Chang Shiyong substitutes on the market at present, for example, ceramic circuit board, aluminium oxide ceramics circuit board, aluminium nitride ceramics electricity
Road plate etc., therefore cannot be understood as being limitation of the present invention.
The circuit interface 110 is used to be connected with mutual inductor and breaker body, i.e., conveniently accessible existing plastic housing open circuit
, in other words, only need to be by the circuit interface 110 and mutual inductor and short when being modified to existing breaker of plastic casing in device
Coil connection in the device body of road, change are small.In addition, the circuit interface 110 is also connected with drive circuit 120, with facility
The voltage gathered with mutual inductor, and driving breaker body carry out sub-switching operation.Wherein, the circuit of the circuit interface 110 is former
Reason figure is as shown in Fig. 2, the port Vin in Fig. 2 is used to be connected with drive circuit 120, and is additionally operable to be connected with mutual inductor；Port
Port1 is used to be connected with drive circuit 120, and is additionally operable to be connected with breaker body.
The drive circuit 120 is connected with the circuit interface 110, which is used to be gathered according to mutual inductor
Voltage go driving breaker body carry out sub-switching operation.In the present embodiment, as shown in Figure 1, the drive circuit 120 includes：
Comparison circuit 121 and power circuit 122.
Wherein, the comparison circuit 121 is connected with circuit interface 110, and is connected with power circuit 122.The comparison
The voltage that circuit 121 is used to gather the mutual inductor is big in the voltage of mutual inductor collection compared with reference voltage
When the reference voltage, high level is exported, to drive the breaker body separating brake.In this present embodiment, alternatively, as schemed
Shown in 3, which includes：Comparator U1, the first sample circuit 1211 and the second sample circuit 1212.
First sample circuit 1211 is connected with the circuit interface 110, and first also with the comparator U1
Input terminal connects, and the voltage for being gathered to the mutual inductor carries out sampling partial pressure.In this present embodiment, alternatively, as in Fig. 3
Upper left side dotted line frame shown in, first sample circuit 1211 includes：First resistor R1, second resistance R2 and 3rd resistor
R3.The first resistor R1 and second resistance R2 is in parallel, and one end of the first resistor R1 connects with the circuit interface 110
Connect, the other end of the first resistor R1 respectively with the first input end of the comparator U1 and one end of the 3rd resistor R3
Connection, the other end ground connection of the 3rd resistor R3.
Second sample circuit 1212 is connected with the second input terminal of the comparator U1, and also with one first power supply
Connection, for sampling the voltage of first power supply.In this present embodiment, alternatively, such as the lower left dotted line frame institute in Fig. 3
Show, second sample circuit 1212 includes：4th resistance R4, the 5th resistance R5 and the first capacitance C1.The first capacitance C1
One end be connected with one end of the 4th resistance R4, the other end of the 4th resistance R4 and the second of the comparator U1 defeated
Enter end to connect with one end of the 5th resistance R5, the other end of the other end of the 5th resistance R5 and the first capacitance C1
Connection, the other end of the 5th resistance R5 are also grounded, and one end of the 4th resistance R4 is also connected with first power supply.Its
In, the voltage of first power supply can be selected according to actual needs, for example, 5V, 12V etc..In addition, first power supply can be with
It is additional power source or uses the voltage source of comparator U1.Wherein it is possible to understand, illustrate only in Fig. 3 using than
The situation of voltage source compared with device U1, therefore it is limitation of the present invention to be simultaneously not only understood as.
The first input end of the comparator U1 is connected with first sample circuit 1211, and the second of the comparator U1
Input terminal is connected with second sample circuit 1212, and output terminal of the first input end also with comparator U1 is connected, further
Ground, the output terminal are connected by a feedback resistance R6 with first input end.In addition, the output terminal is also connected with circuit interface 110,
And be also connected through a pull-up resistor R7 with second source, to drive the breaker body separating brake, further, this compares
Voltage (comparison voltage) that device U1 inputs the first sample circuit 1211 through first input end and the second sample circuit 1212 are through the
Two input terminals input voltage (reference voltage) compare, when the first sample circuit 1211 sampling voltage (comparison voltage) be less than or
Equal to the second sample circuit 1212 sampling voltage (reference voltage) when, export low level；When the first sample circuit 1211 samples
Voltage (comparison voltage) be more than the second sample circuit 1212 sampling voltage (reference voltage) when, export high level, with driving
The breaker body separating brake.Wherein, the voltage of the second source can be set according to being actually needed, for example, 12V.In addition,
The second source can be the power supply that additional power source or power circuit 122 provide.
Wherein, high level be for low level, wherein, low level represent magnitude of voltage be less than the first numerical value electricity
Pressure, the first numerical value are a common numerical value in industry.For example, for generally for TTL circuits, the first numerical value is 0.0V-
0.4V, and for cmos circuit, the first numerical value is 0.0-0.1V.High level represents that magnitude of voltage is higher than the electricity of second value
Pressure, second value are a common numerical value in industry.For example, for generally for TTL circuits, second value 2.4V-
5.0V, and for cmos circuit, second value 4.99-5.0V.
Wherein, can in order to avoid the electric energy in breaker body is poured into the comparison circuit 121 through circuit interface 110 is counter
Selection of land, the comparison circuit 121 further include：First isolating diode D1.The positive terminal of the first isolating diode D1 with it is described
The output terminal connection of comparator U1, the negative pole end of the first isolating diode D1 are connected with circuit interface 110, further,
The output terminal of comparator U1 is also connected through a resistance R8 with the positive terminal of the first isolating diode D1.
Wherein, as a kind of optional mode, it is above-mentioned in first input end be noninverting input, the second input terminal is anti-
To input terminal.
The power circuit 122 is connected with the circuit interface 110, and is also connected with comparison circuit 121, for by institute
The voltage that the voltage conversion for stating mutual inductor collection is 5V is that the comparison circuit 121 is powered.In the present embodiment, alternatively, such as Fig. 4
Shown, the power circuit 122 includes：Input circuit 1221 and conversion chip U2.
The input circuit 1221 is connected with the input terminal of the conversion chip U2, and also with the circuit interface 110
Circuit, the voltage conversion for the mutual inductor to be gathered are conveyed to the conversion chip U2 for 12V voltages.In the present embodiment,
Alternatively, as shown in the left dotted line frame in Fig. 4, the input circuit 1221 includes：Second isolating diode D2, voltage-stabiliser tube D3
With the first storage capacitor C2.The cathode of the second isolating diode D2 is connected with the circuit interface 110, second isolation
The anode of diode D2 one end with the voltage-stabiliser tube D3, one end of the first storage capacitor C2 and the conversion chip respectively
The input terminal connection of U2, further, the anode of second isolation diode D2 through a resistance R9 respectively with the voltage-stabiliser tube D3
One end, one end of the first storage capacitor C2 connects with the input terminal of the conversion chip U2.The voltage-stabiliser tube D3's is another
One end is grounded, the other end ground connection of the first storage capacitor C2.In addition, the input circuit 1221 can also include：First filter
Ripple capacitance C3, the anode that one end of the first filter capacitor C3 isolates diode D2 with described second connect, first filter
The other end ground connection of ripple capacitance C3.Wherein, voltage-stabiliser tube D3 is the voltage-stabiliser tube of 12V, will can be inputted through the second isolation diode D2
Voltage voltage stabilizing in 12V or so.
The input terminal of the conversion chip U2 is connected with input circuit 1221, its output terminal is connected with comparison circuit 121, should
It is that 5V voltage outputs are comparator U1 power supplies that conversion chip U2, which is used for the 12V voltage conversions,.
In order to make the voltage that conversion chip U2 is exported gentle, ripple-free, alternatively, such as the right dotted line frame institute in Fig. 4
Show, which further includes：Output filtering accumulator 1222, the output filtering accumulator 1222 and institute
The output terminal connection of conversion chip U2 is stated, further, output filtering accumulator 1222 includes：Second storage capacitor C4 and
Second filter capacitor C5.The output terminal of the conversion chip U2 one end with the second storage capacitor C4, the second filter capacitor C5 respectively
One end and connected with the power end of comparator U1, the other end of the second storage capacitor C4 and the second filter capacitor C5's is another
One end is grounded.
The foregoing is merely the alternative embodiment of the present invention, it is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. one kind protection drive module, it is characterised in that applied to breaker of plastic casing, the breaker of plastic casing includes：Breaker
Body and mutual inductor；The protection drive module includes：
Pcb board；
The circuit interface being arranged on the pcb board, the circuit interface are used for and the mutual inductor and the breaker body
Connection；
And the drive circuit on the pcb board is arranged at, the drive circuit is connected with the circuit interface, the driving electricity
Road includes：Power circuit and comparison circuit, the power circuit are connected with the comparison circuit；
It is that the comparison circuit is powered that the power circuit, which is used for the voltage that the voltage conversion that the mutual inductor gathers is 5V,；
The voltage that the comparison circuit is used to gather the mutual inductor gathers compared with reference voltage in the mutual inductor
Voltage when being more than the reference voltage, high level is exported, to drive the breaker body separating brake.
2. protection drive module according to claim 1, it is characterised in that the comparison circuit includes：Comparator, first
Sample circuit and the second sample circuit, first sample circuit are connected with the first input end of the comparator, and described second
Sample circuit is connected with the second input terminal of the comparator, and the output terminal of the comparator is connected with the circuit interface, institute
The output terminal for stating comparator is also connected with the first input end, and first sample circuit is also connected with the circuit interface,
Voltage for being gathered to the mutual inductor samples, and second sample circuit is also connected with one first power supply, for pair
The voltage of first power supply is sampled, and the power end of the comparator is connected with the power circuit.
3. protection drive module according to claim 2, it is characterised in that first sample circuit includes：First electricity
Resistance, second resistance and 3rd resistor, the first resistor and the second resistance are in parallel, one end of the first resistor with it is described
Circuit interface connects, the other end of the first resistor respectively with the first input end of the comparator and the 3rd resistor
One end connects, the other end ground connection of the 3rd resistor.
4. protection drive module according to claim 2, it is characterised in that second sample circuit includes：4th electricity
Resistance, the 5th resistance and the first capacitance, one end of first capacitance are connected with one end of the 4th resistance, the 4th resistance
The other end be connected with the second input terminal of the comparator and one end of the 5th resistance, the other end of the 5th resistance
Be connected with the other end of first capacitance, the other end of the 5th resistance is also grounded, one end of the 4th resistance also with
The first power supply connection.
5. protection drive module according to claim 2, it is characterised in that the comparison circuit further includes：Pull-up resistor,
One end of the pull-up resistor is connected with a second source, and the other end of the pull-up resistor and the output terminal of the comparator connect
Connect.
6. the protection drive module according to claim 2 any one, it is characterised in that the comparison circuit further includes：
First isolating diode, the positive terminal of first isolating diode are connected with the output terminal of the comparator, described first every
Negative pole end from diode is connected with circuit interface.
7. according to the protection drive module described in claim 1-6 any one, it is characterised in that the power circuit includes：
Input circuit and conversion chip, the input circuit are connected with the input terminal of the conversion chip, the input circuit also with institute
Circuit interface circuit is stated, the output terminal of the conversion chip is connected with the comparison circuit, and the input circuit is used for by described in
The voltage conversion of mutual inductor collection is conveyed to the conversion chip for 12V voltages, and the conversion chip is used for the 12V voltages
Be converted to 5V voltage outputs.
8. protection drive module according to claim 7, it is characterised in that the input circuit includes：Second isolation two
Pole pipe, voltage-stabiliser tube and the first storage capacitor, the cathode of second isolating diode are connected with the circuit interface, and described second
Isolate the anode of diode one end with the voltage-stabiliser tube, one end of first storage capacitor and the conversion chip respectively
Input terminal connects, the other end ground connection of the voltage-stabiliser tube, the other end ground connection of first storage capacitor.
9. protection drive module according to claim 8, it is characterised in that the input circuit further includes：First filtering
Capacitance, the anode that one end of first filter capacitor isolates diode with described second connect, first filter capacitor
The other end is grounded.
10. protection drive module according to claim 7, it is characterised in that the power circuit further includes：Output filtering
Accumulator, the output filtering accumulator are connected with the output terminal of the conversion chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178036.9A CN107947113A (en) | 2017-11-22 | 2017-11-22 | One kind protection drive module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178036.9A CN107947113A (en) | 2017-11-22 | 2017-11-22 | One kind protection drive module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947113A true CN107947113A (en) | 2018-04-20 |
Family
ID=61929959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711178036.9A Pending CN107947113A (en) | 2017-11-22 | 2017-11-22 | One kind protection drive module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107947113A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038719Y (en) * | 2006-12-22 | 2008-03-19 | 杭申控股集团有限公司 | Controller possessing spare quick brake-separating judging circuit |
| CN103166176A (en) * | 2011-12-16 | 2013-06-19 | 上海精翊电器有限公司 | Under-voltage protection tripper for low-voltage circuit breaker |
| CN207459705U (en) * | 2017-11-22 | 2018-06-05 | 江苏创能电器有限公司 | A kind of protection drive module |
-
2017
- 2017-11-22 CN CN201711178036.9A patent/CN107947113A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038719Y (en) * | 2006-12-22 | 2008-03-19 | 杭申控股集团有限公司 | Controller possessing spare quick brake-separating judging circuit |
| CN103166176A (en) * | 2011-12-16 | 2013-06-19 | 上海精翊电器有限公司 | Under-voltage protection tripper for low-voltage circuit breaker |
| CN207459705U (en) * | 2017-11-22 | 2018-06-05 | 江苏创能电器有限公司 | A kind of protection drive module |
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