CN105849850A - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN105849850A CN105849850A CN201480070782.4A CN201480070782A CN105849850A CN 105849850 A CN105849850 A CN 105849850A CN 201480070782 A CN201480070782 A CN 201480070782A CN 105849850 A CN105849850 A CN 105849850A
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- Prior art keywords
- wiring
- resistor
- electrically connected
- chopper
- circuit
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
- H02H3/347—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using summation current transformers
Abstract
Provided is a breaker that is not susceptible to electromagnetic wave noise, irrespective of a length of wiring. A processing circuit (4) is electrically connected to one end of a rectifier (3) via first wiring (71), and is also electrically connected to the other end of the rectifier (3) via second wiring (72). A breaker unit (5) interrupts, by receiving an output from the processing circuit (4), a current flowing in an electric path (2). A first resistor (61) is electrically connected between the first wiring (71) and the second wiring (72), and forms a path in which a secondary current of the rectifier (3) flows. A detection unit (41) detects a potential difference between the first wiring (71) and the second wiring (72). A determining unit (42) determines whether to operate the breaker unit (5) or not on the basis of the potential difference detected by means of the detection unit (41).
Description
Technical field
The present invention relates generally to chopper, and particularly to including the chopper of current transformer.
Background technology
Traditionally, having been provided for following chopper, wherein this chopper is configured to use unsteady flow
Device monitors the electric current flowing through electric line, and blocks this electric wire when flowing abnormal current being detected
Road.As this chopper, for example, as it is known that have for by using current transformer (CT) to carry out detection of excessive current
With the molded case circuit breakers of short circuit current and for by using zero phase current transformer (ZCT) to detect
The RCCB etc. of the flowing of the abnormal current caused by electric leakage.
Such as, document 1 (JP 3875167 B2) discloses a kind of RCCB, including: current transformer (zero
Phase current transformer: ZCT)；Detection of electrical leakage portion, it is configured to output based on current transformer and detects whether to send out
Give birth to earth fault；And solenoid, make blocking-up for operating in response to the detection in detection of electrical leakage portion
Switch is operated.In the RCCB described in document 1, detection of electrical leakage portion includes by semiconducter IC
The electric leakage decision circuitry realized, and this electric leakage decision circuitry and current transformer (ZCT) are via a pair wiring (electricity
Line) electrical connection.
In the case of externally to this chopper for giving electromagnetic wave noise, in electric leakage decision circuitry
It may happen that less desirable operation.Such as, wiring possibly serves for antenna and electromagnetic wave noise may be at this
Plant in wiring and induce high frequency electric, even and if in the case of not there is earth fault, blocking-up is opened
Pass is also possible to be operated.In this respect, RCCB disclosed in document 1 includes capacitor,
Respective first end of these capacitors is connected to corresponding wiring line in following location: this position is by this corresponding wiring line
Being divided into partitioning portion, one of them partitioning portion is so that the length of each partitioning portion is less than the electricity supposed
The mode of 1/4 wavelength of magnetic wave noise is connected to current transformer or electric leakage decision circuitry.The second of these capacitors
End ground connection.Such as, in the feelings of the electromagnetic wave noise that supposition frequency is 1 [GHz] (1/4 wavelength is 75 [mm])
Under condition, each capacitor corresponding wiring line in following position is connected to these wirings: this position is by this phase
The length being divided into each partitioning portion should be connected up less than the partitioning portion of 75 [mm].
In the RCCB disclosed in document 1, the high frequency electric induced in wiring flows to ground connection
End.Therefore, it is routed in high fdrequency component aspect to seem to have been carried out 2 segmentations by capacitor.Each wiring includes each
From length less than the partitioning portion of 1/4 wavelength of electromagnetic wave noise, therefore inhibit the resonance of high frequency electric
Phenomenon and high frequency electric do not increase.Therefore, the structure disclosed in document 1 is possible to prevent electric leakage to judge
The undesirably operation of circuit.
Structure disclosed in document 1 reduces the impact of electromagnetic wave noise based on the length connected up by adjustment
Technology.In the art, the electromagnetic wave noise in supposing frequency band is higher than in the case of 1 [GHz], electric
Container each must be connected to this wiring than the position of the part of 75 [mm] much shorter wiring being divided into.
But, due to the Physical Interference being considered as between electric component, therefore can be used for and capacitor in wiring
The position connected is restricted.Therefore, for the electromagnetic wave noise in the frequency band that comparison is the highest, possibly cannot
Realize the desired length of the partitioning portion of wiring.Therefore, in chopper based on above-mentioned technology, according to
The frequency band of electromagnetic wave noise, possibly cannot reduce the impact of electromagnetic wave noise.Thus radiation immunity may
Not.
Summary of the invention
The present invention makes in view of said circumstances, and it is an object of the invention to provide and wiring
Length independently, be not easily susceptible to the chopper of the impact of electromagnetic wave noise.
A kind of chopper according to aspects of the present invention, it is characterised in that including: at least one electric line；
Current transformer, it is configurable to generate the primary current being sized depending on flowing through described at least one electric line
The secondary current of size；Processing circuit, it is electrically connected to one end of described current transformer via the first wiring,
And the other end of described current transformer it is electrically connected to via the second wiring；Blocking unit, it is configured to ring
Ying Yu, from the output of described process circuit, blocks the electric current flowing through at least one electric line described；With
And first resistor, it is electrically connected between described first wiring with described second wiring, to form use
In the path allowing described secondary current to flow through, wherein, described process circuit includes: test section, its quilt
It is configured to detect the potential difference between described first wiring and described second wiring；And judging part, its quilt
It is configured to the potential difference detected by described test section judge whether to make described blocking unit carry out work
Make.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the schematic construction illustrating the chopper according to embodiment 1.
Fig. 2 is the circuit diagram of the schematic construction illustrating the chopper according to embodiment 1.
Fig. 3 is the circuit diagram of the schematic construction illustrating the chopper according to embodiment 2.
Fig. 4 is the circuit diagram of the topology example 1 illustrating the chopper according to embodiment 2.
Fig. 5 is the circuit diagram of the topology example 2 illustrating the chopper according to embodiment 2.
Fig. 6 is the circuit diagram of the topology example 3 illustrating the chopper according to embodiment 2.
Fig. 7 is the circuit diagram of the topology example 4 illustrating the chopper according to embodiment 2.
Fig. 8 is the circuit diagram of the variation illustrating the chopper according to embodiment 2.
Detailed description of the invention
Embodiment 1
As it is shown in figure 1, according to the chopper 1 of the present embodiment include at least one electric line 2, current transformer 3,
Process circuit 4, blocking unit 5 and the first resistor 61.Current transformer 3 is configurable to generate and is sized depending on stream
The secondary current of size through the primary current of at least one electric line 2.Process circuit 4 via the first wiring
71 the first ends being electrically connected to current transformer 3, and it is electrically connected to current transformer 3 via the second wiring 72
Second end.Blocking unit 5 is configured to respond to block from the output processing circuit 4 flow through at least one
The electric current of electric line 2.First resistor 61 is electrically connected between the first wiring 71 and the second wiring 72,
To form the path for allowing secondary current to flow through.
Process circuit 4 and include test section 41 and judging part 42.Test section 41 is configured to detect the first wiring
71 and second connect up the potential difference between 72.Judging part 42 is configured to based on detected by test section 41
Potential difference judges whether to make blocking unit 5 be operated.
In other words, according to the chopper 1 of the present embodiment there is following structure as shown in Figure 1: the first resistance
A pair wiring (first wiring 71 and the second wiring 72) that device 61 is electrically connected to be connected with current transformer 3 it
Between.In chopper 1, process circuit 4 and be electrically connected to current transformer 3, and quilt via this pair wiring
It is configured to detect the potential difference between this pair wiring, and makes blocking unit 5 carry out work according to this potential difference
Make.
In the present embodiment, utilize RCCB to illustrate chopper 1, wherein this RCCB quilt
Be configured to detection electric leakage caused by abnormal current, and in response to detect this abnormal current block to
A few electric line 2.Chopper 1 as RCCB includes that zero phase current transformer (ZCT) is as unsteady flow
Device 3, and as it is shown in figure 1, include that multiple (being three in the present embodiment) electric line 21,22 and 23 is made
Primary Conductor for current transformer 3.More specifically, current transformer 3 includes being made up of ferrimagnet and having
Ring-type core 31 and the Secondary Winding 32 of winding core 31.Electric line 21,22 and as Primary Conductor
23 hollow spaces passing core 31.
Electric line 21,22 with 23 are inserted with respectively and contact device 51,52 and 53.Blocking unit 5 includes
Contact device 51,52 and 53 and the solenoid 54 being electrically connected between electric line 21 and 23 and crystalline substance
The series circuit of brake tube 55.The control terminal (gate terminal) of IGCT 55 is electrically connected to process circuit 4
Lead-out terminal.In blocking unit 5, when receiving disabling signal from process circuit 4, IGCT 55 connects
Lead to, and solenoid 54 is so excited so that contacting device 51,52 and 53 and opening.
Chopper 1 as RCCB arranged as described above can be arranged on for joining via three
Electric wire supplies in the phase three-wire three formula distribution system of three-phase AC (exchange) electric power, and is inserted into
In these distribution wires and can be configured to occur earth fault time block power supply.Specifically, disconnected
In road device 1, due to occur earth fault and causing flow through the core 31 through current transformer 3 electric line 21,
The electric current of 22 and 23 become unbalanced in the case of, secondary current flows through Secondary Winding 32.Thus, process
Circuit 4 detects this secondary current, and makes blocking unit 5 be operated.Note, flow through Secondary Winding 32
The size (current value) of secondary current depend on and flow through the electric line 21,22 and 23 as Primary Conductor
The size of primary current.
The chopper 1 according to the present embodiment is further described below with reference to Fig. 2.But, below
Described structure is only example, and embodiments of the invention are not limited to following example, and can be
Without departing from revising following example in the case of the technological concept of the present invention in every way.Fig. 2 illustrates
Only one electric line 2 as the Primary Conductor arranging current transformer 3.But, in the situation of RCCB
Under, use multiple electric line 21,22 and 23 as Primary Conductor.
In chopper 1, the first wiring 71 is electrically connected to the Secondary Winding 32 (seeing Fig. 1) of current transformer 3
One end (the first end), and the second wiring 72 is electrically connected to the other end of Secondary Winding 32 of current transformer 3
(the second end).In other words, current transformer 3 includes the Secondary Winding with the opposite end as pair of output
32, and in Secondary Winding 32, generation is sized depending on flowing through the primary current of at least one electric line 2
The secondary current of size.Processing circuit 4, to be electrically connected to a pair of current transformer 3 via the first wiring 71 defeated
Go out end in an outfan (the first outfan), and via second wiring 72 be electrically connected to a pair defeated
Go out another outfan (the second outfan) in end.
As in figure 2 it is shown, in chopper 1, the first resistor 61 is electrically connected to the first wiring 71 and second
Between wiring 72.Therefore, in the case of producing secondary current in the Secondary Winding 32 of current transformer 3,
Potential difference may be produced between first wiring 7 and the second wiring 72.It is to say, in Secondary Winding 32
The secondary current induced flows through first wiring the 71, first resistor 61 and the second wiring 72, and as a result first
Voltage decline at resistor 61 causes producing potential difference between the first wiring 71 and the second wiring 72.
In this respect, in the chopper 1 of the present embodiment, include as it has been described above, process circuit 4: detection
Portion 41, it is configured to detect the potential difference between the first wiring 71 and the second wiring 72；And judging part
42, it is configured to make blocking unit 5 be operated based on detected potential difference.At the present embodiment
In, test section 41 includes the differential amplifier circuit using operational amplifier, and is configured to output and depends on
Rely in first wiring 71 current potential and second wiring 72 current potential between difference voltage, i.e. by by current potential
Difference is amplified produced voltage with given gain.But, test section 41 is not limited to use operation amplifier
The differential amplifier circuit of device, and other structure can be included.
Judging part 42 is configured to receive from the magnitude of voltage of test section 41 output as input value, and should
Input value compares with predetermined threshold.Specifically, it is judged that portion 42 includes comparator, and is configured to
In the case of exceeding threshold value from the input value of test section 41, to blocking unit 5 output drive signal.Cause
This, flow through at least one electric line 2 at abnormal current and induce secondary current thus due to first
There is potential difference between wiring 71 and the second wiring 72 and cause the input value of judging part 42 to exceed threshold value
In the case of, process circuit 4 to blocking unit 5 output drive signal so that blocking unit 5 is operated.
In the chopper 1 of the present embodiment, at least one electric line 2, current transformer 3, process circuit 4, resistance
Disconnected portion the 5, first resistor the 61, first wiring 71 and the second wiring 72 are arranged in a housing.At this
In embodiment, process circuit 4 and include special special IC (ASIC).Process electricity including ASIC
The IGCT 55 (seeing Fig. 1) of road the 4, first resistor 61 and blocking unit 5 is accommodated in being arranged on housing
On circuit substrate.Therefore, the first wiring 71 and/or the second wiring 72 can include the pattern on circuit substrate
Change conductor, lead terminal, cable and be connected to the electric wire etc. of Secondary Winding of current transformer 3.Process circuit 4
It is connected to supply voltage point 91 and circuit ground end 92, and by supply voltage point 91 and circuit ground
The voltage applied between end 92 is operated (energising).
In the chopper 1 of above-mentioned the present embodiment, produce between the first wiring 71 and the second wiring 72
In the case of potential difference, at least one electric line 2 is blocked, and therefore chopper 1 is not easily susceptible to the electricity of outside
Magnetic wave effect of noise and there is the radiation immunity that comparison is high.In the case of describing in detail, outside
Electromagnetic wave noise generally will affect the first wiring 71 and the second wiring 72 in the same manner, because of without shadow
Ring the potential difference between the first wiring 71 and the second wiring 72.In the chopper 1 of the present embodiment, process
Circuit 4 is configured to connect up the electricity between 72 based on the first wiring 71 and second detected by test section 41
Potential difference makes blocking unit 5 be operated.Therefore, the chopper 1 of the present embodiment has and is not easily susceptible to electromagnetic wave
Effect of noise and the advantage the most undesirably operated.
In other words, in the chopper 1 according to the present embodiment, process circuit 4 and remove the first wiring 71 He
Common-mode noise between second wiring 72, and only detection the first wiring 71 and second connects up the differential mode on 72
Signal.Accordingly, because what electromagnetic wave noise may induce in the first wiring 71 and the second wiring 72
High frequency electric is common-mode noise, thus processes circuit 4 and can remove this high frequency electric.Therefore, according to this
The chopper 1 of embodiment have the length with wiring independently, be not easily susceptible to the impact of electromagnetic wave noise
Advantage.
As a result, about the electromagnetic wave noise in the highest frequency band, chopper 1 can reduce electromagnetic wave and make an uproar
The impact of sound, and chopper 1 has sufficient radiation immunity.Such as, " IEC60947-2 " for
The regulation that RCCB definition is relevant with the radiation immunity in the range of 80 [MHz]～2.7 [GHz].?
This respect, chopper 1 is for the electromagnetic wave noise tool that frequency is 2.7 [GHz] (1/4 wavelength is about 27 [mm])
There is sufficient radiation immunity.
The chopper 1 of the employing zero phase current transformer (ZCT) of such as RCCB etc. needs higher spoke
Penetrate vulnerability to jamming, this is because this chopper 1 needs detection by the primary current flowing through at least one electric line 2
The weak secondary current induced.As it has been described above, the chopper 1 of the present embodiment is for the highest frequency band
In electromagnetic wave noise there is sufficiently high radiation immunity.Thus, chopper 1 is particularly suitable for leakage, breaking
Device etc..
But, it is not limited to RCCB according to the technology of the chopper 1 of the present embodiment, and can answer
For any chopper, as long as this chopper uses current transformer.Such as, breaking according to the present embodiment
The technology of road device 1 can apply to molded case circuit breakers.This molded case circuit breakers is configured to
Current transformer (CT) is used to come detection of excessive current and short circuit current as abnormal current, and in response to detecting
Abnormal current blocks electric line.In this chopper, an electric line 2 as Primary Conductor passes
The hollow space of the core 31 of current transformer 3.The chopper 1 being configured to molded case circuit breakers is configured to
In the case of abnormal current (overcurrent or short circuit current) flows through Primary Conductor (electric line 2), utilization processes electricity
Road 4 detection flows through the secondary current of the Secondary Winding 32 of current transformer 3, and makes blocking unit 5 be operated.
Embodiment 2
As it is shown on figure 3, exist with the difference of the chopper 1 of embodiment 1 according to the chopper 1 of the present embodiment
In: also including low pass filter 8 according to the chopper 1 of the present embodiment, wherein this low pass filter 8 is electric
It is connected to the first resistor 61 and processes between circuit 4, and allowing frequency to equal to or less than cut-off frequency
Signal component pass through.Below, utilize identical reference to specify unit same as in Example 1
Part, and suitably it is omitted for the explanation of these elements.Fig. 3～Fig. 8 is shown as arranging the one of current transformer 3
The only one electric line 2 of partial conductor, but in the case of chopper is RCCB, use multiple electricity
Circuit 21,22 and 23 is as Primary Conductor.
In the chopper 1 of the present embodiment, the first resistor 61 is via the first wiring 71 and the second wiring 72
It is electrically connected to low pass filter 8.Low pass filter 8 allows frequency to equal to or less than the signal of cut-off frequency
Composition passes through, and makes frequency be higher than noise contribution decay (cut-off) of cut-off frequency.Low pass filter 8
Outfan via first wiring 71 and second wiring 72 be electrically connected to process circuit 4.At the present embodiment
In, low pass filter 8 is arranged on and is provided with the first resistor 61 and processes on the circuit substrate of circuit 4.Cause
This, between the first resistor 61 and low pass filter 8 and between low pass filter 8 and process circuit 4
First wiring 71 and second wiring 72 respective parts include the patterned conductor on circuit substrate.
According to this structure, chopper 1 can also utilize low pass filter 8 to remove the first wiring 71 and the second cloth
Differential mode noise on line 72.It is to say, chopper 1 is for due to anti-by the metal assembly in housing etc.
Penetrate thus the first wiring 71 and the electromagnetic wave noise of the second wiring 72 may be affected unevenly, it is achieved that
The highest radiation immunity.
In short, detect the first wiring according to the chopper 1 of the present embodiment not only by test section 41
71 and second connect up the potential difference between 72 and make blocking unit 5 be operable to reduce common-mode noise, and
Low pass filter 8 can also be utilized to reduce differential mode noise.In other words, chopper 1 can be by using
Low pass filter 8 as the first noise reduction unit and the test section 41 as the second noise reduction unit are made an uproar
The dual removal of sound, and the radiation immunity of chopper 1 improves further.
Expect following: in the chopper 1 of the present embodiment, respective in the first wiring 71 and the second wiring 72
In, from low pass filter 8 until process circuit 4 be shorter in length than from low pass filter 8 until
Length till first resistor 61.In short, below Qi Wang: as it is shown on figure 3, connect up 71 first
With in the second wiring 72 each, meet L1 > relation of L2, wherein: " L1 " represents the first resistor 61 He
The length of the wiring between low pass filter 8, and " L2 " represent low pass filter 8 and process circuit 4 it
Between the length of wiring.
In this case, low pass filter 8 from process circuit 4 than from the first resistor 61 closer to.Disconnected
In road device 1, it is possible to reduce electromagnetic wave noise is to the first wiring between low pass filter 8 and process circuit 4
71 and second impacts connecting up 72 respective parts, thus radiation immunity can be improved.In order to shorten
The length of the wiring between low pass filter 8 and process circuit 4, preferably less than bandpass filter 8 is positioned at as far as possible
Near the position processing circuit 4.
It is also expected to arrange in such a way from processing circuit 4 until the low pass as the first noise reduction unit
Distance till wave filter 8: make can obtain noise reduction in as the test section 41 of the second noise reduction unit
Effect, and connect up with outside electromagnetic wave noise resonance.Specifically, by low pass filter 8 and place
The length of the wiring between reason circuit 4 arranges to be equal or longer than 4/1 wavelength of the electromagnetic noise supposed, and
And test section 41 achieves the noise reduction rate not resonated with electromagnetic wave noise.Therefore, with low pass filter 8 and
Processing the distance between circuit 4 independently, chopper 1 is for the electromagnetic wave noise tool in the highest frequency band
There is high radiation immunity.
In more detail, the chopper 1 of the present embodiment can have the topology example 1～4 according to the following stated
In the circuit structure of any structure example.
Topology example 1
As shown in Figure 4, in this topology example, low pass filter 8 includes being electrically connected to the first wiring 71
And the first capacitor 81 between reference potential point 9 and be electrically connected to the second wiring 72 and benchmark electricity
The second capacitor 82 between site 9.Reference potential point 9 is the point with constant potential, can be specifically
Supply voltage point 91 or circuit ground end 92, and be circuit ground end 92 in this example.
Specifically, the first end of the first capacitor 81 is electrically connected to the first wiring 71, and the first electric capacity
Second end of device 81 is connected to the circuit ground end 92 as reference potential point 9.First wiring 71 in
The junction point of the first capacitor 81 is at the first resistor 61 and processes between circuit 4.
First end of the second capacitor 82 is electrically connected to the second wiring 72, and the of the second capacitor 82
Two ends are connected to the circuit ground end 92 as reference potential point 9.Second wiring 72 in the second electric capacity
The junction point of device 82 is at the first resistor 61 and processes between circuit 4.
According to this topology example, (frequency is higher than the noise of cut-off frequency for the high-frequency noise in the first wiring 71
Composition) it is released to reference potential point 9 via the first capacitor 81.Additionally, the high frequency in the second wiring 72
Noise is released to reference potential point 9 via the second capacitor 82.Therefore, it can reduce high-frequency noise pair
Process the impact of circuit 4, and the radiation immunity of chopper 1 increases.
Topology example 2
As it is shown in figure 5, in this topology example, low pass filter 8 includes being electrically connected to the first wiring 71
And second wiring 72 between the 3rd capacitor 83.
Specifically, the first end of the 3rd capacitor 83 is electrically connected to the first wiring 71, and the 3rd electric capacity
Second end of device 83 is electrically connected to the second wiring 72.The company with the 3rd capacitor 83 in first wiring 71
Contact is at the first resistor 61 and processes between circuit 4.Second wiring 72 in the 3rd capacitor 83
Junction point at the first resistor 61 and process between circuit 4.
According to this topology example, the capacitor (the 3rd capacitor 83) as low pass filter 8 is arranged on first
Between wiring 71 and the second wiring 72.Therefore, it can simplify the layout of wiring, and can utilize and compare
Low one-tenth realized this structure originally.
Topology example 3
As shown in Figure 6, in this topology example, low pass filter 8 includes being electrically connected to the first wiring 71
And the first capacitor 81 between reference potential point 9 and be electrically connected to the second wiring 72 and benchmark electricity
The second capacitor 82 between site 9.Low pass filter 8 also includes being positioned at the first resistor 61 and first
The second resistor 62 that mode between capacitor 81 is inserted in the first wiring 71 and to be positioned at first
Mode between resistor 61 and the second capacitor 82 is inserted in the 3rd resistor 63 in the second wiring 72.
In other words, the second resistor 62 is to be electrically connected between the first resistor 61 and the first capacitor 81
Mode is arranged in the first wiring 71.3rd resistor 63 is to be electrically connected to the first resistor 61 and second
Mode between capacitor 82 is arranged in the second wiring 72.Reference potential point 9 has constant potential
Point, can be specifically supply voltage point 91 or circuit ground end 92, and is circuit ground in this example
End 92.
It is to say, the low pass filter 8 of this topology example is by the low pass filter to topology example 1
8 interpolation the second resistors 62 and the 3rd resistor 63 are constituted.Second resistor 62 is inserted in the first cloth
The midway of line 71.First end of the second resistor 62 is electrically connected to the first resistor via the first wiring 71
61, and the second end of the second resistor 62 71 is electrically connected to the first capacitor 81 via the first wiring.
3rd resistor 63 is inserted in the midway of the second wiring 72.First end of the 3rd resistor 63 is via the second cloth
Line 72 is electrically connected to the first resistor 61, and the second end of the 3rd resistor 63 is via the second wiring 72
It is electrically connected to the second capacitor 82.
In this example, low pass filter 8 includes resistor (the second resistor the 62, the 3rd resistor 63).
Accordingly, there exist the advantage that can reduce high-frequency noise (frequency is higher than the noise contribution of cut-off frequency) further.
As a result, the radiation immunity of chopper 1 improves further.
Topology example 4
As it is shown in fig. 7, in this topology example, low pass filter 8 includes being electrically connected to the first wiring 71
And second wiring 72 between the 3rd capacitor 83.Low pass filter 8 also includes being positioned at the first resistor
61 and the 3rd modes between capacitor 83 be inserted in the 4th resistor 64 in the first wiring 71 and with
Mode between the first resistor 61 and the 3rd capacitor 83 is inserted in the 5th in the second wiring 72
Resistor 65.In other words, the 4th resistor 64 is to be electrically connected to the first resistor 61 and the 3rd electric capacity
Mode between device 83 is arranged in the first wiring 71.5th resistor 65 is to be electrically connected to the first resistance
Mode between device 61 and the 3rd capacitor 83 is arranged in the second wiring 72.
It is to say, the low pass filter 8 of this topology example is by the low pass filter to topology example 2
8 interpolation the 4th resistors 64 and the 5th resistor 65 are constituted.4th resistor 64 is inserted in the first cloth
The midway of line 71.First end of the 4th resistor 64 is electrically connected to the first resistor via the first wiring 71
61, and the second end of the 4th resistor 64 71 is electrically connected to the 3rd capacitor 83 via the first wiring.
5th resistor 65 is inserted in the midway of the second wiring 72.First end of the 5th resistor 65 is via the second cloth
Line 72 is electrically connected to the first resistor 61, and the second end of the 5th resistor 65 is via the second wiring 72
It is electrically connected to the 3rd capacitor 83.
In this topology example, low pass filter 8 includes resistor (the second resistor the 62, the 3rd resistor
63).Accordingly, there exist and can reduce high-frequency noise (frequency is higher than the noise contribution of cut-off frequency) further
Advantage.As a result, the radiation immunity of chopper 1 improves further.
Incidentally, the variation as shown in Fig. 8 of the present embodiment, low pass filter 8 can include
There is multiple (being three in this example) filter circuit 801,802 and 803 of different cut-off frequencies.
In this variation, it is desirable to multiple filter circuits 801,802 and 803 are with the cutoff frequency of filter circuit
Rate is the highest, then from the mode that process circuit 4 to the length of the wiring of this filter circuit is the shortest, multistagely
It is arranged in the first resistor 61 and processes between circuit 4.
In the example of fig. 8, low pass filter 8 has and includes following tertiary structure: low (kHz) frequency band
The first filter circuit 801 used by minimizing, the second filter circuit used by high (MHz) frequency band minimizing
802 and superelevation (GHz) frequency band reduce used by the 3rd filter circuit 803.First filter circuit 801
Cut-off frequency " f1 ", the cut-off frequency " f2 " of the second filter circuit 802 and the 3rd filter circuit 803
Cut-off frequency " f3 " meet the relation of " f1 < f2 < f3 ".
Multiple filter circuits 801,802 and 803 from the first resistor 61 side by the first filter circuit
801, being arranged in order of the second filter circuit 802 and the 3rd filter circuit 803 so that utilize and be positioned at
Make a return journey the higher noise contribution of frequency elimination rate from the filter circuit processing circuit 4 closer proximity.Should note
Meaning, the electromagnetic wave noise of the outside that frequency is higher will affect the wiring that length is shorter.In this respect, exist
In this variation, until the wave filter electricity that the cut-off frequency in filter circuit is higher from processing circuit 4
The length of the wiring till road is shorter.Accordingly, there exist the impact that can reduce electromagnetic wave noise efficiently
Advantage.As a result, the radiation immunity of chopper 1 improves further.
Other 26S Proteasome Structure and Function is identical with the 26S Proteasome Structure and Function in embodiment 1.
Claims (8)
1. a chopper, it is characterised in that including:
At least one electric line；
Current transformer, it is configurable to generate the once electricity being sized depending on flowing through at least one electric line described
The secondary current of the size of stream；
Processing circuit, it is electrically connected to one end of described current transformer via the first wiring, and via the
Two wirings are electrically connected to the other end of described current transformer；
Blocking unit, its output being configured to respond to from described process circuit, block described in flowing through
The electric current of at least one electric line；And
First resistor, it is electrically connected between described first wiring and described second wiring, to be formed
For the path allowing described secondary current to flow through,
Wherein, described process circuit includes:
Test section, it is configured to detect the current potential between described first wiring and described second wiring
Difference；And
Judging part, it is configured to judge whether based on the potential difference detected by described test section
Described blocking unit is made to be operated.
Chopper the most according to claim 1, it is characterised in that also include low pass filter, institute
State low pass filter to be electrically connected between described first resistor and described process circuit, and allow frequency
Rate is passed through equal to or less than the signal component of cut-off frequency.
Chopper the most according to claim 2, it is characterised in that
Described low pass filter includes:
First capacitor, it is electrically connected between described first wiring and reference potential point；
Second capacitor, it is electrically connected between described second wiring and described reference potential point.
Chopper the most according to claim 2, it is characterised in that
Described low pass filter includes the 3rd capacitor, and it is electrically connected to described first wiring and described the
Between two wirings.
Chopper the most according to claim 3, it is characterised in that
Described low pass filter also includes:
Second resistor, its be electrically connected to described first resistor and described first capacitor it
Between mode be arranged on described first wiring in, and
3rd resistor, its be electrically connected to described first resistor and described second capacitor it
Between mode be arranged on described second wiring in.
Chopper the most according to claim 4, it is characterised in that
Described low pass filter also includes:
4th resistor, its be electrically connected to described first resistor and described 3rd capacitor it
Between mode be arranged on described first wiring in, and
5th resistor, its be electrically connected to described first resistor and described 3rd capacitor it
Between mode be arranged on described second wiring in.
7. according to the chopper according to any one of claim 2 to 6, it is characterised in that
In each wiring of described first wiring and described second wiring, from described low pass filter to described
Process long than from described low pass filter to the wiring of described first resistor of the length of wiring of circuit
Spend short.
8. according to the chopper according to any one of claim 2 to 7, it is characterised in that
Described low pass filter includes multiple filter circuits that cut-off frequency is different, and
The plurality of filter circuit is the highest with the cut-off frequency of filter circuit, then from described process circuit
To the mode that the length of wiring of this filter circuit is the shortest, be arranged in multistagely described first resistor and
Between described process circuit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013265490A JP6343926B2 (en) | 2013-12-24 | 2013-12-24 | Breaker |
| JP2013-265490 | 2013-12-24 | ||
| PCT/JP2014/005929 WO2015097984A1 (en) | 2013-12-24 | 2014-11-27 | Breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105849850A true CN105849850A (en) | 2016-08-10 |
| CN105849850B CN105849850B (en) | 2018-11-30 |
Family
ID=53477896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480070782.4A Active CN105849850B (en) | 2013-12-24 | 2014-11-27 | Breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6343926B2 (en) |
| CN (1) | CN105849850B (en) |
| WO (1) | WO2015097984A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6996903B2 (en) * | 2017-08-18 | 2022-01-17 | 株式会社三共 | Pachinko machine |
| JP7087026B2 (en) * | 2020-07-13 | 2022-06-20 | 株式会社三共 | Pachinko machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135034U (en) * | 1984-02-21 | 1985-09-07 | 株式会社明電舎 | Static ground fault directional relay |
| JPH0515046A (en) * | 1991-02-15 | 1993-01-22 | Mitsubishi Electric Corp | Ground fault detector |
| JPH05232155A (en) * | 1991-06-28 | 1993-09-07 | Matsushita Electric Works Ltd | Announcing device |
| JPH10199394A (en) * | 1996-12-30 | 1998-07-31 | Fuji Electric Co Ltd | Earth leakage breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919565A (en) * | 1974-04-08 | 1975-11-11 | Ibm | Overcurrent sense circuit |
| JPH02146383U (en) * | 1989-05-17 | 1990-12-12 | ||
| JP3875167B2 (en) * | 2002-09-12 | 2007-01-31 | 三菱電機株式会社 | Noise prevention structure for electronic equipment |
| JP2005156501A (en) * | 2003-11-28 | 2005-06-16 | Japan Atom Energy Res Inst | Temperature and fluid phase determination simultaneous measurement method for multiphase field consisting of liquid and gas, and composite probe |
-
2013
- 2013-12-24 JP JP2013265490A patent/JP6343926B2/en active Active
-
2014
- 2014-11-27 CN CN201480070782.4A patent/CN105849850B/en active Active
- 2014-11-27 WO PCT/JP2014/005929 patent/WO2015097984A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135034U (en) * | 1984-02-21 | 1985-09-07 | 株式会社明電舎 | Static ground fault directional relay |
| JPH0515046A (en) * | 1991-02-15 | 1993-01-22 | Mitsubishi Electric Corp | Ground fault detector |
| JPH05232155A (en) * | 1991-06-28 | 1993-09-07 | Matsushita Electric Works Ltd | Announcing device |
| JPH10199394A (en) * | 1996-12-30 | 1998-07-31 | Fuji Electric Co Ltd | Earth leakage breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015122203A (en) | 2015-07-02 |
| CN105849850B (en) | 2018-11-30 |
| JP6343926B2 (en) | 2018-06-20 |
| WO2015097984A1 (en) | 2015-07-02 |
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