WO2017179869A2 - 검전기 및 시그널 퓨즈를 이용한 모스펫 릴레이 보호 장치 및 보호 방법 - Google Patents
검전기 및 시그널 퓨즈를 이용한 모스펫 릴레이 보호 장치 및 보호 방법 Download PDFInfo
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- WO2017179869A2 WO2017179869A2 PCT/KR2017/003869 KR2017003869W WO2017179869A2 WO 2017179869 A2 WO2017179869 A2 WO 2017179869A2 KR 2017003869 W KR2017003869 W KR 2017003869W WO 2017179869 A2 WO2017179869 A2 WO 2017179869A2
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- voltage value
- mosfet relay
- fuse
- detector
- current
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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
- H02H7/20—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 electronic equipment
- H02H7/205—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 electronic equipment for controlled semi-conductors which are not included in a specific circuit arrangement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/22—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with sequential operation of interdependent switches, e.g. relays, contactors, programme drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0023—Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
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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
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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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
- H02H3/08—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 excess current
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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
- H02H3/20—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 excess voltage
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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
- H02H3/20—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 excess voltage
- H02H3/202—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 excess voltage for dc systems
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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
- H02H7/20—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 electronic equipment
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- the present invention relates to a MOSFET protection device and method using a detector and a signal fuse, and calculates and calculates a detected voltage value through a voltage detector of a current carrying voltage of a MOSFET relay provided in a vehicle battery main circuit.
- MOSFET relay protection device using a detector and a signal fuse that can protect the MOSFET relay from burn-out by operating the signal fuse in advance when the rated voltage exceeds the preset threshold. And to a method.
- PHEV plug-in hybrid electric vehicle
- a device called a relay is used to enable or disconnect electricity.
- relays especially mechanical relays in electric vehicles have problems such as frequent noise generation and frequent maintenance due to welding, in order to solve this problem, conventionally, instead of mechanical relay, MOSFET (Metal Oxide Silicon Field Effect Transistor) ; (MOSFET) to implement and apply the relay.
- MOSFET Metal Oxide Silicon Field Effect Transistor
- the MOSFET relay may be burned out and destroyed when an overcurrent (for example, a current of 1000 A or more) is applied due to the characteristics of a device, a separate blocking device is required to block it in advance. Since there is no separate blocking device that can protect the burnout, there was a problem that the damaged MOSFET relay must be replaced with a new MOSFET relay each time.
- an overcurrent for example, a current of 1000 A or more
- the present inventors calculate the detected voltage value through a detector to check the energizing current value of the MOSFET relay provided in the vehicle battery main circuit in order to solve the problem that the circuit implemented through the conventional MOSFET relay described above, Inventing a MOSFET relay protection device and method using a detector and a signal fuse that can protect the MOSFET relay from damage by pre-blocking the current applied to the MOSFET relay by operating the signal fuse when the voltage value exceeds a predetermined threshold value Reached.
- the present invention is derived to solve the above-described problems, the present invention calculates the detected voltage value through a voltage detector the current value of the MOSFET (MOSFET) relay provided in the vehicle battery main circuit, MOSFET relay protection device using a detector and a signal fuse that can protect the MOSFET relay from burn-out by operating a signal fuse in advance when the voltage value exceeds a preset threshold value, and To provide a method.
- MOSFET MOSFET
- the MOSFET relay protection device calculates a voltage value of a current that is energized by a resistor, and determines a voltage detector and a determination result of the detector that determine whether the voltage value exceeds a threshold value.
- it may include a short circuit that shorts the fuse on the circuit.
- a current flowing through a MOSFET relay connected to the resistor may be cut off.
- the detector may include an operational amplifier (OP Amp) for amplifying the voltage value and outputting an amplified voltage value, and a comparator for determining whether the amplified voltage value exceeds a predetermined threshold amplified voltage value ( Comparator).
- OP Amp operational amplifier
- Comparator a comparator for determining whether the amplified voltage value exceeds a predetermined threshold amplified voltage value
- the short circuit may be connected to a controller receiving a heating control signal from the detector and the fuse, and may include a heating element that generates heat by a heating signal applied from the controller, and the heating element generates heat.
- the fuse may be shorted.
- the detector when the amplification voltage value exceeds the threshold amplification voltage value, applies a heating control signal to the controller, and the controller generates the heating element by the heating control signal. Can generate heat.
- the controller is a Field Effect Transistor (FET), and the heating element may be a heat generating resistor including PTC.
- FET Field Effect Transistor
- the resistor may be a shunt resistor.
- the short circuit may be a signal fuse.
- a MOSFET relay protection method includes calculating a voltage value of a current flowing through a resistor through a voltage detector, determining whether the voltage value exceeds a threshold value, and detecting the voltage value. According to the determination result of the short circuit may include the step of shorting the fuse on the circuit.
- the determining of the excess may include measuring a current value of a current flowing through the resistor, calculating a voltage value of the current based on the current value and a resistance value of the resistor, and calculating Amplifying the voltage value to the amplified voltage value through an operational amplifier (OP Amp) and determining whether the amplified voltage value exceeds a predetermined threshold amplified voltage value through a comparator; It may include.
- OP Amp operational amplifier
- the shorting of the fuse may include applying a heating control signal to the short circuit unit in the detector, generating a heat generating element by a controller included in the shorting unit, and generating the heating element. May include the step of shorting.
- determining whether the predetermined threshold amplification voltage value is exceeded may include setting a threshold amplification voltage value based on a threshold current range corresponding to a current value of 500 amps to 1000 amps. have.
- the MOSFET relay protection device and the protection method according to an embodiment of the present invention prevent the current exceeding the current carrying capacity (1000 ampere, etc.) of the MOSFET relay before being applied to the MOSFET relay, thereby protecting the MOSFET relay element from overcurrent. Has the advantage.
- the present invention has an advantage that the threshold amplification voltage value can be more easily set by amplifying the voltage difference across the resistor that is minutely output to 0.5v or less through the operational amplifier OP Amp.
- FIG. 1 is a view schematically showing the configuration of a MOSFET relay protection device 100 according to an embodiment of the present invention.
- FIG. 2 is a flowchart schematically illustrating a procedure of protecting a MOSFET relay through the MOSFET relay protection device 100 shown in FIG. 1.
- the battery module 1 illustrated in the drawings of the present specification may mean a secondary battery applicable to a plug-in hybrid electric vehicle (PHEV) or an electric vehicle (EV). 2) may mean a plug-in hybrid electric vehicle or an electric vehicle as described above.
- PHEV plug-in hybrid electric vehicle
- EV electric vehicle
- the MOSFET relay 3 may refer to a device in which a relay (switching device) is implemented using a metal oxide semiconductor field effect transistor (MOSFET), and in this case, the MOSFET relay Since (3) uses a conventionally known technique, detailed description of the MOSFET relay 3 element itself will be omitted.
- a relay switching device
- MOSFET metal oxide semiconductor field effect transistor
- the fuse 4 may generally mean an element provided on a circuit to melt a current in the circuit by melting by an overcurrent, and likewise, the fuse 4 may be known in the art. The detailed description of the fuse 4 element itself will be omitted since the disclosed technology is used.
- FIG. 1 is a view schematically showing the configuration of a MOSFET relay protection device 100 according to an embodiment of the present invention.
- the MOSFET relay protection device 100 may include a resistor 110, a detector 120, and a short circuit 130 connected to the MOSFET relay 3. .
- the resistor 110 is positioned between the MOSFET relay 3 and the fuse 4, and may serve as a means for measuring a current value transmitted from the fuse 4 to the MOSFET relay 3.
- the resistor 110 may be applied with a very low resistance value (for example, 0.001 ohm), a shunt resistance (or a classification resistance), and an overcurrent value of 500 amperes (A) or more.
- a very low resistance value for example, 0.001 ohm
- a shunt resistance or a classification resistance
- an overcurrent value 500 amperes (A) or more.
- the current value may be calculated inversely using the resistor 110 such as a shunt resistor.
- the resistor 110 such as a shunt resistor as follows.
- V is the voltage value v
- I is the current value A
- R is the resistance value ⁇ .
- the resistor 110 when the current value of the current output from the battery module 1 corresponds to a very large overcurrent, the resistor 110 according to the present invention may be used to calculate the reverse.
- the resistor 110 described herein uses a conventionally known shunt resistor, a more detailed description thereof will be omitted.
- the detector 120 may calculate a voltage value of the current flowing through the resistor 110 and determine whether the corresponding voltage value exceeds a threshold value.
- the voltage detector 120 calculates an energized voltage value of the resistor 110 by using a current value of current flowing along both ends of the resistor 110 and a resistance value of the resistor 110. Amplifying the corresponding voltage value by a predetermined multiple, and comparing the amplified amplification voltage value with a predetermined threshold amplification voltage value may determine whether the excess value, the role of the detector 120 is the operational amplifier 121 And a comparator 122.
- the operational amplifier 121 (OP Amp) amplifies the calculated voltage value by a predetermined multiple (for example, 10 times or 20 times) to facilitate the voltage comparison of the comparator 122 described later.
- the initial voltage value calculated through the detector 120 is calculated as a minute minute voltage such as 0.5v, 0.6v, 0.7v, etc. due to the excessive current value (for example, 500A or more) of the current flowing through the resistor 110. do. Therefore, by amplifying such a minute voltage by 20 times or more, the comparators 122 described later can compare the voltage values more easily.
- the operational amplifier 121 when the initial voltage value calculated through the detector 122 is 0.5v, the operational amplifier 121 amplifies the initial voltage value by 20 times, and thus an amplified voltage value corresponding to 10v is output.
- the amplified voltage value thus output may be used to determine the overcurrent of the conduction current in the comparator 122 to be described later.
- the operational amplifier 121 may also amplify a threshold voltage range preset by a user.
- the threshold voltage range preset by the user may mean a voltage protection region that is arbitrarily set by the user in order to protect the MOSFET relay 3 from burnout, for example, 0.5v to 1.0v, and the like. As described above, it may mean a voltage range between the maximum voltage value at which the MOSFET relay 3 operates and the time point at which the MOSFET relay 3 is burned out.
- the reason why the threshold voltage range is minute, such as 0.5v to 1.0v, is because of the excessive current value (for example, 500 A or more) of the current flowing through the resistor 110 as described above, and the operational amplifier 121 Amplifies this small threshold voltage range by a predetermined multiple (for example, 20 times, etc.), and thus a threshold amplification voltage range corresponding to 10v to 20v is output.
- the threshold amplified voltage range thus output may serve as an overcurrent determination reference range of the comparator 122 to be described later.
- the comparator 122 may perform a role of determining whether the amplified voltage value exceeds the threshold amplified voltage value by comparing the amplified voltage value output from the operational amplifier 121 and the threshold amplified voltage value. .
- the threshold amplification voltage value may mean a threshold value (for example, 13v, etc.) set by the user within the threshold amplification voltage range 10v to 20v output from the operational amplifier 121 described above. In this case, it is noted that the value of the threshold amplification voltage value can be changed as much as the user's setting.
- the comparator 122 does not judge the amplification voltage value exceeding 10v but less than 13v but exceeding 13v.
- the amplification voltage value is determined to be excessive, and the heating control signal is applied to the short circuit unit 130 described later.
- the current value 650A corresponding to 13v is not an overcurrent to the extent that the MOSFET relay 3 is burned out, but since the current value 520A has already exceeded the maximum current value 520A at which the MOSFET relay 3 operates, The MOSFET relay 3 may be dangerous, especially if the amplification voltage value exceeds 13v and approaches 20v (the current value 1000A at which the MOSFET relay 3 burns out).
- the comparator 122 may make an excess determination on the amplification voltage value exceeding 13v, and cause the short circuit 130 to be described later to short the fuse 4.
- the short circuit 130 may perform a role of shorting the fuse 4 according to a result of determining whether the comparator 122 has been exceeded. It may also be referred to as (Signal Fuse).
- the short circuit 130 may be configured to include a controller 131 and the heating element 132, the role is as follows.
- the controller 131 may apply the heating signal to the heating element 132, which will be described later, to generate the heating element 132.
- the controller 131 may be applied with a switching element such as a field effect transistor (FET), and any element capable of performing a role of a switching element in addition to the field effect transistor is not limited as an object of the controller 131. Note that no.
- FET field effect transistor
- the heating element 132 may be directly or indirectly adjacent to the fuse 4 of the circuit, and may generate a high temperature by receiving a heating signal from the controller 131 to blow off the fuse 4.
- the heating element 132 may be a heating element for dissipating high-temperature heat by rapidly increasing the resistance value by a current flowing for a very short time, such as a PTC (PTC, static characteristic thermistor), etc. Note that any device capable of performing the role of the device is not limited to the object of the heating element 132.
- the voltage value of the current flowing through the resistor 110 is calculated and amplified by the detector 120 connected to both ends of the resistor 110, and the amplified voltage value is output. It is determined whether or not the voltage value is exceeded (S201).
- the comparator 122 applies the heating control signal to the controller 131 (S202), and thus the controller 131 generates the heating element 132.
- the heating element 132 is generated by applying a heating signal to the heating element.
- the fuse 4 is blown off by the heat generation of the heat generating element 132, and the MOSFET relay 3 is protected from overcurrent (S204).
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims (11)
- 저항체에 통전되는 전류의 전압값을 산출하고, 상기 전압값이 임계값을 초과하는지 여부를 판단하는 검전기(voltage detector); 및상기 검전기의 판단 결과에 따라, 회로 상의 퓨즈를 단락시키는 단락부;를 포함하고, 그리고상기 퓨즈가 단락됨에 따라, 상기 저항체와 연결된 모스펫(MOSFET) 릴레이에 통전되는 전류가 차단되는 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 제1항에 있어서,상기 검전기는,상기 전압값을 증폭하여 증폭 전압값을 출력하는 연산증폭기(Operational Amplifier; OP Amp); 및상기 증폭 전압값이 기 설정된 임계 증폭 전압값을 초과하는지 여부를 판단하는 비교기(Comparator);를 포함하는 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 제2항에 있어서,상기 단락부는,상기 검전기로부터 발열 제어 신호를 인가 받는 제어기; 및상기 퓨즈와 연결되며, 상기 제어기로부터 인가되는 발열 신호에 의해 발열하는 발열체;를 포함하고, 그리고상기 발열체가 발열함에 따라, 상기 퓨즈가 단락되는 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 제3항에 있어서,상기 비교기의 판단 결과, 상기 증폭 전압값이 상기 임계 증폭 전압값을 초과하는 경우,상기 검전기는 상기 제어기에 발열 제어 신호를 인가하며, 상기 발열 제어 신호에 의해 상기 제어기는 상기 발열체를 발열시키는 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 제3항에 있어서,상기 제어기는 전계 효과 트랜지스터(Field Effect Transistor; FET)이고, 그리고상기 발열체는 피티씨(PTC)를 포함하는 발열 저항인 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 제1항에 있어서,상기 저항체는 션트(Shunt) 저항인 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 제1항에 있어서,상기 단락부는,시그널 퓨즈(Signal Fuse) 인 것을 특징으로 하는,모스펫 릴레이 보호 장치.
- 검전기(voltage detector)를 통해, 저항체에 통전되는 전류의 전압값을 산출하고, 상기 전압값이 임계값을 초과하는지 여부를 판단하는 단계; 및상기 검전기의 판단 결과에 따라, 단락부에서 회로 상의 퓨즈를 단락시키는 단계;를 포함하는 것을 특징으로 하는,모스펫 릴레이 보호 방법.
- 제8항에 있어서,상기 초과하는지 여부를 판단하는 단계는,상기 저항체에 통전되는 전류의 전류값을 측정하는 단계;상기 전류값 및 상기 저항체의 저항값을 기반으로 전류의 전압값을 산출하는 단계;연산증폭기(Operational Amplifier; OP Amp)를 통해, 상기 전압값을 상기 증폭 전압값으로 증폭하는 단계; 및비교기(Comparator)를 통해, 상기 증폭 전압값이 기 설정된 임계 증폭 전압값을 초과하는지 여부를 판단하는 단계;를 포함하는 것을 특징으로 하는,모스펫 릴레이 보호 방법.
- 제8항에 있어서,상기 퓨즈를 단락시키는 단계는,상기 검전기에서 상기 단락부에 발열 제어 신호를 인가하는 단계;상기 단락부 내에 포함된 제어기가 발열체를 발열시키는 단계; 및상기 발열체가 발열함에 따라, 상기 퓨즈가 단락되는 단계;를 포함하는 것을 특징으로 하는,모스펫 릴레이 보호 방법.
- 제9항에 있어서,상기 기 설정된 임계 증폭 전압값을 초과하는지 여부를 판단하는 단계는,500 암페어 내지 1000 암페어의 전류값에 해당하는 임계 전류 범위를 기반으로 임계 증폭 전압값을 설정하는 단계;를 포함하는 것을 특징으로 하는,모스펫 릴레이 보호 방법.
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JP2018543175A JP6732297B2 (ja) | 2016-04-11 | 2017-04-10 | 検電器及びシグナルヒューズを用いたmosfetリレー保護装置及び保護方法 |
US16/079,487 US10862296B2 (en) | 2016-04-11 | 2017-04-10 | Apparatus and method for protecting MOSFET relay by using voltage detector and signal fuse |
EP17782624.5A EP3413420B1 (en) | 2016-04-11 | 2017-04-10 | Apparatus and method for protecting mosfet relay by using voltage detector and signal fuse |
ES17782624T ES2959270T3 (es) | 2016-04-11 | 2017-04-10 | Aparato y método para proteger un relé MOSFET usando un detector de voltaje y un fusible de señal |
PL17782624.5T PL3413420T3 (pl) | 2016-04-11 | 2017-04-10 | Urządzenie i sposób zabezpieczenia przekaźnika mosfet za pomocą detektora napięcia i bezpiecznika sygnałowego |
CN201780015371.9A CN108780992A (zh) | 2016-04-11 | 2017-04-10 | 通过使用电压检测器和信号熔丝保护mosfet继电器的装置和方法 |
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KR1020160044285A KR20170116472A (ko) | 2016-04-11 | 2016-04-11 | 검전기 및 시그널 퓨즈를 이용한 모스펫 릴레이 보호 장치 및 보호 방법 |
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JP (1) | JP6732297B2 (ko) |
KR (1) | KR20170116472A (ko) |
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US10862296B2 (en) | 2020-12-08 |
KR20170116472A (ko) | 2017-10-19 |
ES2959270T3 (es) | 2024-02-22 |
HUE063459T2 (hu) | 2024-01-28 |
JP2019506834A (ja) | 2019-03-07 |
JP6732297B2 (ja) | 2020-07-29 |
US20190052257A1 (en) | 2019-02-14 |
EP3413420A4 (en) | 2019-03-13 |
EP3413420A2 (en) | 2018-12-12 |
WO2017179869A3 (ko) | 2018-08-02 |
EP3413420B1 (en) | 2023-09-27 |
PL3413420T3 (pl) | 2023-12-18 |
CN108780992A (zh) | 2018-11-09 |
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