WO2014188538A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- WO2014188538A1 WO2014188538A1 PCT/JP2013/064254 JP2013064254W WO2014188538A1 WO 2014188538 A1 WO2014188538 A1 WO 2014188538A1 JP 2013064254 W JP2013064254 W JP 2013064254W WO 2014188538 A1 WO2014188538 A1 WO 2014188538A1
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- Prior art keywords
- fuse
- negative electrode
- arm element
- lower arm
- circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
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- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
Definitions
- the present invention relates to a power converter, and more particularly, to a power converter suitable for quickly cutting off an electric circuit when a lower arm element constituting a pair of power semiconductor elements is short-circuited.
- the present invention has been made in view of the above points, and provides a power conversion device capable of realizing electric circuit interruption only at the time of short-circuiting of a power semiconductor element and at an earlier timing than fusing of a battery fuse.
- the purpose is to do.
- the object is to provide a pair of power semiconductor elements that are an upper arm element and a lower arm element connected in series between a positive electrode and a negative electrode, a short circuit detection circuit that detects a short circuit of the lower arm element, It is interposed between the positive terminal on the positive electrode side of the arm element and the negative terminal on the negative electrode side of the lower arm element, and the positive terminal and the negative terminal are connected when the short circuit is detected.
- a power conversion device that includes a switching element for a fuse that is driven in such a manner and a blocking portion that is formed of a thin metal wire that connects the negative electrode side terminal and the negative electrode.
- the electric circuit can be interrupted only when the power semiconductor element is short-circuited, and at an earlier timing than the battery fuse is blown.
- FIG. 1 shows a circuit configuration diagram of a power conversion apparatus 10 according to an embodiment of the present invention.
- FIG. 2 is a structural diagram of a power module provided in the power conversion apparatus 10 of the present embodiment.
- 2A is a top view of the power module
- FIG. 2B is a cross-sectional view of the power module shown in FIG. 2A
- FIG. The expanded sectional view of the principal part of the power module shown to 2 (B) is each shown.
- the power conversion device 10 is mounted on, for example, an electric vehicle or a hybrid vehicle, and is a device that converts the power of the in-vehicle battery and supplies it to a drive motor or the like. As shown in FIG. 1, the power conversion device 10 includes an in-vehicle battery 12, a booster circuit 14, and an inverter circuit 16.
- the in-vehicle battery 12 is a chargeable / dischargeable lithium ion battery, a nickel metal hydride battery or the like, and is a high voltage battery capable of outputting a DC voltage of 240 volts, for example.
- a battery fuse 18 is connected to the output of the in-vehicle battery 12.
- the battery fuse 18 is a fuse that does not melt in the normal use range of the power converter 10 and has a melting characteristic that melts by self-heating when a current exceeding a specified level flows.
- the booster circuit 14 is connected to the in-vehicle battery 12 via the battery fuse 18, and is a circuit that boosts the input voltage supplied from the in-vehicle battery 12 to a predetermined DC voltage (for example, 650 volts).
- the inverter circuit 16 is connected to the booster circuit 14 and converts the DC voltage supplied from the booster circuit 14 into an AC voltage.
- a load such as a drive motor is connected to the inverter circuit 16. This load is operated by AC power supplied from the inverter circuit 16.
- the load such as the drive motor described above also functions as a generator.
- the inverter circuit 16 converts the AC voltage supplied from the load side into a DC voltage and supplies the DC voltage to the booster circuit 14.
- the booster circuit 14 receives the DC voltage supplied from the inverter circuit 16. Is reduced to a predetermined DC voltage (a voltage that matches the voltage of the vehicle-mounted battery 12).
- the in-vehicle battery 12 can store the electric power generated by the load.
- the booster circuit 14 includes a filter capacitor 20, a reactor 22, a pair of power semiconductor elements 24 and 26, and a smoothing capacitor 28.
- the filter capacitor 20 is connected in parallel to the in-vehicle battery 12 and is a capacitor that stabilizes the input voltage supplied from the in-vehicle battery 12 to the booster circuit 14.
- Reactor 22 is configured such that one end is connected to the positive terminal of in-vehicle battery 12 and the other end is connected to a common connection point CL between the pair of power semiconductor elements 24 and 26.
- the reactor 22 has a function of discharging and storing electric power when performing voltage conversion between the in-vehicle battery 12 side and the inverter circuit 16 side.
- the pair of power semiconductor elements 24 and 26 are an upper arm element and a lower arm element connected in series between the positive electrode P and the negative electrode N.
- the power semiconductor element 24 that is an upper arm element connected to the positive electrode P includes an insulated gate bipolar transistor (IBGT) 24a that is a switching element that performs a switching operation, a diode 24b that is connected in parallel between the collector and emitter of the IGBT 24a, Consists of.
- IBGT insulated gate bipolar transistor
- the diode 24b allows current to flow from the emitter E to the collector C of the IGBT 24a.
- the power semiconductor element 26 which is a lower arm element connected to the negative electrode N, includes an insulated gate bipolar transistor (IBGT) 26a that is a switching element that performs a switching operation, and a diode 26b that is connected in parallel between the collector and emitter of the IGBT 26a. And consist of The diode 26b allows current to flow from the emitter E to the collector C of the IGBT 26a.
- the other end of the reactor 22 is connected to the emitter of the IGBT 24a and the collector of the IGBT 26a.
- the smoothing capacitor 28 is connected between the positive electrode P and the negative electrode N, and is a capacitor that smoothes the voltage between the positive electrode P and the negative electrode N, that is, the output of the booster circuit 14.
- the positive electrode P and the negative electrode N are connected to the inverter circuit 16.
- the inverter circuit 16 converts a DC voltage between the positive electrode P and the negative electrode N into an AC voltage and supplies it to a load such as a drive motor.
- the power conversion device 10 includes the positive terminal on the positive electrode P side of the upper arm element 24 (that is, the collector C of the IGBT 24a) and the negative terminal on the negative electrode N side of the lower arm element 26 (that is, the emitter E of the IGBT 26a). And a switching element 30 interposed between them.
- the switching element 30 is a fuse element that is turned on when the lower arm element 26 is short-circuited to cut off the electric circuit.
- the switching element 30 is referred to as a fuse switching element 30.
- the fuse switching element 30 is an insulated gate bipolar transistor (IBGT) having a high withstand voltage and a small capacity capable of withstanding a voltage (for example, 650 volts) generated between the positive electrode P and the negative electrode N.
- the fuse switching element 30 has a collector C connected to the positive terminal of the upper arm element 24 (that is, the collector C and the positive electrode P of the IGBT 24a), and an emitter E connected to the negative terminal (that is, the lower arm element 26). It is configured to be connected to the emitter E) of the IGBT 26a.
- the emitter E of the fuse switching element 30 is connected to the negative terminal of the lower arm element 26 and to the negative electrode N.
- the emitter E of the fuse switching element 30 and the negative terminal of the lower arm element 26 are connected by a bonding wire 32 which is a thin metal wire.
- the emitter E and the negative electrode N of the fuse switching element 30 are connected by a bonding wire 34 which is a thin metal wire.
- the bonding wires 32 and 34 are made of, for example, aluminum, copper, or gold.
- the upper arm element 24, the lower arm element 26, and the fuse switching element 30 of the booster circuit 14 are semiconductor elements mounted on a power module 40 molded with resin as shown in FIG. 2, and are formed in a thin rectangular shape. It is comprised by the manufactured semiconductor chip.
- the IGBT 24a and the diode 24b of the upper arm element 24 are placed on a lead frame 42 that is a metal plate, and the IGBT 26a and the diode 26b of the lower arm element 26 are placed on a lead frame 44 that is a metal plate. It is a module that is resin-sealed in the placed state.
- the power module 40 has a resin portion 46 made of a resin such as an epoxy resin, and is formed in a substantially rectangular shape.
- a part of the positive electrode P connected to the positive terminal of the upper arm element 24 protrudes to the outside, and a part of the negative terminal of the lower arm element 26 (
- the negative electrode protrusion 52 is protruded to the outside, and a part of the connection electrode which is the common connection point CL of the upper arm element 24 and the lower arm element 26 (hereinafter referred to as the connection protrusion 54). Is mounted to protrude outward.
- control protrusion 56 a part of the control electrode for driving and controlling the IGBT 24a of the upper arm element 24 and the IGBT 26a of the lower arm element 26 or performing current detection is externally provided. It is mounted to protrude.
- the positive electrode protruding portion 50 and the negative electrode protruding portion 52 are adjacently disposed adjacent to each other.
- the positive electrode protrusion 50 includes a main body 50a and a protrusion 50b that protrudes further from the main body 50a.
- the protrusion 50 b is disposed outside the tip of the negative electrode protrusion 52 so as to be adjacent to the tip of the negative electrode protrusion 52.
- the fuse switching element 30 is placed on the protrusion 50b.
- the fuse switching element 30 is fixed to the protrusion 50b with solder or the like so that the collector is in contact with the surface of the protrusion 50b and the emitter is exposed on the surface.
- the negative electrode protrusion 52 and the emitter of the switching element for fuse 30 are connected by a bonding wire 32.
- the negative electrode N is arranged outside the protrusion 50b of the positive electrode protrusion 50 so as to be adjacent to the protrusion 50b.
- the negative electrode N and the emitter of the fuse switching element 30 are connected by a bonding wire 34.
- the negative electrode protrusion 52, the protrusion 50b of the positive electrode protrusion 50, and the negative electrode N are molded by a housing 58 made of a resin such as an epoxy resin.
- the fuse switching element 30 and the bonding wires 32 and 34 are protected by a gel-like member 60 inserted into the housing 58.
- the power conversion device 10 includes an upper arm drive IC 70 that drives and controls the IGBT 24a of the upper arm element 24, and a lower arm drive IC 72 that performs PWM drive control of the IGBT 26a of the lower arm element 26.
- the upper arm drive IC 70 outputs a gate signal to the gate of the IGBT 24a so as to PWM-control the drive of the IGBT 24a.
- the lower arm driving IC 72 outputs a gate signal to the gate of the IGBT 26a so as to PWM-control the driving of the IGBT 26a.
- the IGBT 26a of the lower arm element 26 is turned off, the current is changed to the positive terminal of the in-vehicle battery 12 ⁇ the reactor 22 ⁇ the diode 24b of the upper arm element 24 ⁇ the positive electrode P ⁇ the load side ⁇ the negative electrode N ⁇ the in-vehicle battery 12
- the amount of current decreases linearly as time passes, and the reactor 22 is discharged as the amount of current decreases.
- the output voltage of the booster circuit 14 becomes higher than the output voltage of the in-vehicle battery 12, and the smoothing capacitor 28 is charged to such a voltage and the power supply to the load side is maintained. Thereafter, the ON / OFF of the IGBT 26a of the lower arm element 26 is repeated, so that the booster circuit 14 continuously outputs a voltage higher than the output voltage of the in-vehicle battery 12 toward the load side.
- the inverter circuit 16 converts the AC voltage supplied from the load side as a generator into a DC voltage
- the IGBT 24a of the upper arm element 24 is turned on by the gate signal from the upper arm driving IC 70
- the reactor 22 is charged with a difference voltage between the DC voltage by the inverter circuit 16 and the voltage of the filter capacitor 20.
- the current flows in the order of the inverter circuit 16 side ⁇ the positive electrode P ⁇ the IGBT 24a of the upper arm element 24 ⁇ the reactor 22 ⁇ the filter capacitor 20 and the vehicle-mounted battery 12, and the current amount increases linearly with the passage of time. To do.
- the reactor 22 is discharged with the voltage of the filter capacitor 20 connected in parallel.
- the current flows in the order of the reactor 22 ⁇ the filter capacitor 20 and the vehicle battery 12 ⁇ the negative electrode N ⁇ the bonding wire 34 ⁇ the emitter of the switching element 30 for the fuse ⁇ the bonding wire 32 ⁇ the diode 26b of the lower arm element 26.
- the amount decreases linearly over time.
- the output voltage of the booster circuit 14 becomes lower than the DC voltage by the inverter circuit 16, and the filter capacitor 20 and the vehicle-mounted battery 12 are charged to such voltage. Thereafter, the ON / OFF of the IGBT 24a of the upper arm element 24 is repeated, so that the booster circuit 14 continuously outputs a voltage lower than the DC voltage by the inverter circuit 16 toward the in-vehicle battery 12 side.
- FIG. 3 shows a flowchart of an example of a control routine executed in the power conversion apparatus 10 of the present embodiment.
- the IGBT 24a of the upper arm element 24 has a sense emitter SE that shunts the collector current.
- the sense emitter SE has a function of dividing the collector current into a very small current (for example, a current that is one thousandth of the total emitter current).
- a current sense resistor 74 is connected to the sense emitter SE.
- the current sense resistor 74 has a resistance value Rs, and has a function of converting a sense current flowing through the sense emitter SE into a sense voltage Vs, that is, a function of extracting it as an emitter voltage.
- the sense voltage Vs obtained by converting the sense current by the current sense resistor 74 is supplied to the comparator 76. Based on the sense voltage Vs, the comparator 76 determines whether or not a predetermined current or more (that is, an overcurrent) flows in the electrical path between the positive electrode P and the negative electrode N, and the positive electrode P and the negative electrode N Is a comparator that detects the presence or absence of a short circuit (specifically, a short circuit that occurs in the IGBT 26a of the lower arm element 26 when the IGBT 24a of the upper arm element 24 is ON-driven).
- a predetermined current or more that is, an overcurrent
- the output signal of the comparator 76 is supplied to the upper arm driving IC 70. Based on the signal from the comparator 76, the upper arm drive IC 70 outputs a gate signal for turning on the IGBT 24a of the upper arm element 24 to the IGBT 24a (at the time of an affirmative determination in step 100). It is determined whether or not the current I SE flowing in the electric path between the electrode P and the negative electrode N is greater than or equal to a predetermined threshold value I SH (step 110).
- the predetermined threshold value I SH is a minimum current value at which it is determined that a short circuit between the positive electrode P and the negative electrode N has occurred and an overcurrent is flowing in the electric circuit.
- the input side of the photocoupler 78 is connected to the output side of the upper arm driving IC 70.
- the upper arm drive IC 70 outputs the drive signal generated as described above to the photocoupler 78.
- a floating power supply 80 is connected to the output side of the photocoupler 78, and the input side of the photocoupler 82 is connected to the output side of the photocoupler 78.
- the photocoupler 78 is an element that transmits a drive signal from the upper arm drive IC 70 to the photocoupler 82 while being electrically insulated using light.
- the input side of the lower arm driving IC 72 is connected to the output side of the photocoupler 82.
- the photocoupler 82 is an element that transmits a transmission signal from the photocoupler 78 to the lower arm driving IC 72 while electrically insulating it using light.
- the gate of the fuse switching element 30 is connected to the lower arm driving IC 72.
- the lower arm drive IC 72 detects a short circuit between the positive electrode P and the negative electrode N based on the drive signal from the upper arm drive IC 70 via the photocouplers 78 and 82, and the gate of the fuse switching element 30. Generate a gate signal to be supplied to. Specifically, when the positive electrode P and the negative electrode N are short-circuited and the upper arm drive IC 70 outputs a drive signal for driving the fuse switching element 30 to be turned on, the fuse switching element 30 is driven to be turned on. A gate signal to be generated is generated.
- FIG. 4 is a diagram illustrating characteristics of the fuse switching element 30 included in the power conversion device 10 of this embodiment.
- FIG. 5 is a circuit configuration diagram for explaining that the electric circuit is interrupted by turning on the fuse switching element 30 in the power conversion device 10 of the present embodiment.
- FIG. 6 shows the principal part sectional drawing of the power converter device 10 before and behind the electric circuit interruption
- the lower arm driving IC 72 when the lower arm driving IC 72 generates a gate signal for driving the fuse switching element 30 to be turned on, the lower arm driving IC 72 outputs the gate signal to the gate of the fuse switching element 30. At this time, the lower arm drive IC 72 drives the fuse switching element 30 in the non-saturated region.
- the gate-emitter voltage of the fuse switching element 30 is set to 9 volts, which is the unsaturated region.
- the fuse switching element 30 When the fuse switching element 30 is turned on, the current flows in the order of the positive electrode P ⁇ the collector of the fuse switching element 30 ⁇ the emitter ⁇ the bonding wire 34 ⁇ the negative electrode N as shown by the arrows in FIGS. 5 and 6A. Flows. When the fuse switching element 30 is turned on in the non-saturated region, excessive power loss occurs in the fuse switching element 30 itself, and the fuse switching element 30 is thermally destroyed.
- the bonding wire 34 that connects the fuse switching element 30 and the negative electrode N is broken by an impact caused by the thermal destruction (FIG. 6B).
- the bonding wire 34 is broken, the electrical path between the positive electrode P and the negative electrode N is interrupted, so that the short circuit between the positive electrode P and the negative electrode N is eliminated.
- the negative electrode terminal on the negative electrode N side of the lower arm element 26 that is, the emitter E of the IGBT 26a
- the negative electrode N It is not necessary to melt the bonding wires 32 and 34 between the two by self-heating, and it is sufficient to drive the fuse switching element 30 in the non-saturated region.
- the fusing characteristics of the bonding wires 32 and 34 can be reliably avoided from the normal use range in the same manner as the fusing characteristics of the battery fuse 18, so that ripples and transient currents can be obtained during normal use.
- ripples and transient currents can be obtained during normal use.
- the short-circuit between the positive electrode P and the negative electrode N is detected, and then the fuse switching element 30 is changed. It is sufficient to drive on in the non-saturated region. If a short circuit occurs in the IGBT 26a of the lower arm element 26 while the IGBT 24a of the upper arm element 24 is ON-driven, the occurrence of the short circuit is detected by the upper arm drive IC 70 and then passes through the photocouplers 78 and 82. Then, the lower arm driving IC 72 drives the fuse switching element 30 on.
- the electric circuit interruption when the IGBT 26a of the lower arm element 26 is short-circuited is not realized by fusing due to self-heating of the bonding wire 34, and the fuse switching element 30 itself is not saturated. Since this is realized by breaking the bonding wire 34 due to an impact caused by thermal breakage due to the ON driving, the electric circuit can be interrupted quickly with good responsiveness.
- the electric circuit interruption between the positive electrode P and the negative electrode N is realized only when the IGBT 26a of the lower arm element 26 is short-circuited, and the timing earlier than the melting of the battery fuse 18 is achieved. Can be realized. For this reason, according to the present embodiment, it is possible to avoid that the electric circuit interruption between the positive electrode P and the negative electrode N is caused by a factor other than the short circuit of the IGBT 26a of the lower arm element 26, and the lower arm element It is possible to avoid the battery fuse 18 from being blown when the 26 IGBTs 26a are short-circuited.
- the fuse switching element 30 is a semiconductor element that is turned on in the non-saturation region when the IGBT 26a of the lower arm element 26 is short-circuited, so that it has a low current capacity in order to perform its function. It is enough. For this reason, according to the power converter device 10 of the present embodiment, it is possible to avoid an increase in the size of the fuse switching element 30 and to reduce the size of the device 10 itself.
- the bonding wire 34 that cuts off the electric circuit is not a wire that is resin-molded using an epoxy resin or the like on the main body side of the power module 40 but a wire that is protected by the gel-like member 60. Therefore, according to the present embodiment, unlike the configuration in which the bonding wire 34 is resin-molded, it is possible to prevent the electric circuit from being easily broken by the bonding wire 34 due to the resin mold. The battery fuse 18 can be prevented from being blown when the IGBT 26a of the lower arm element 26 is short-circuited.
- the sense emitter SE, the current sense resistor 74, the comparator 76, and the upper arm drive IC 70 of the IGBT 24a of the upper arm element 24 are bonded to the “short circuit detection circuit” recited in the claims.
- the wire 34 corresponds to the “blocking portion” described in the claims, and the upper arm drive IC 70 and the lower arm drive IC 72 correspond to the “fuse drive circuit” described in the claims.
- the current flowing through the sense emitter SE of the IGBT 24a of the upper arm element 24 is used to detect a short circuit of the lower arm element 26.
- the present invention is not limited to this, and as shown in FIG. 7, in order to detect a short circuit of the lower arm element 26 by newly installing a fuse IC 102 in the power conversion apparatus 100, the collector- An emitter-to-emitter voltage may be used.
- the fuse IC 102 may detect a short circuit of the lower arm element 26 by a technique such as DESAT after monitoring the collector-emitter voltage of the lower arm element 26. In this case, the fuse IC 102 may drive the fuse switching element 30 on in the non-saturation region when the short circuit of the lower arm element 26 is detected. Also in this modification, it is possible to obtain the same effect as in the above embodiment. In this modification, the fuse IC 102 corresponds to the “short circuit detection circuit” recited in the claims.
- a short circuit of the lower arm element 26 constituting the booster circuit 14 is detected.
- the present invention is not limited to this, and may be applied to one that detects a short circuit of an arm element constituting the inverter circuit 16.
- the IGBTs 24a and 26a are used as the switching elements of the upper arm element 24 and the lower arm element 26, which are power semiconductors.
- the present invention is not limited to this, and a power MOSFET may be used.
- the power conversion device 10 is mounted on an electric vehicle or a hybrid vehicle.
- the present invention is not limited to this, and may be mounted on things other than vehicles.
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Abstract
Description
12 車載バッテリ
14 昇圧回路
16 インバータ回路
18 バッテリヒューズ
24 上アーム素子
26 下アーム素子
30 ヒューズ用スイッチング素子
32,34 ボンディングワイヤ
40 パワーモジュール
70 上アーム用駆動IC
72 下アーム用駆動IC
P 正極電極
N 負極電極
CL 共通接続点
Claims (10)
- 正極電極と負極電極との間に直列接続される上アーム素子及び下アーム素子である一対のパワー半導体素子と、
前記下アーム素子の短絡を検出する短絡検出回路と、
前記上アーム素子の前記正極電極側の正極側端子と前記下アーム素子の前記負極電極側の負極側端子との間に介在し、前記短絡の検出時に前記正極側端子と前記負極側端子とが接続されるように駆動されるヒューズ用スイッチング素子と、
前記負極側端子と前記負極電極とを接続させる金属細線からなる遮断部と、
を備えることを特徴とする電力変換装置。 - 前記短絡検出回路により前記短絡が検出された際に前記ヒューズ用スイッチング素子をオン駆動させるヒューズ駆動回路を備えることを特徴とする請求項1記載の電力変換装置。
- 前記ヒューズ駆動回路は、前記ヒューズ用スイッチング素子を非飽和領域でオン駆動させることを特徴とする請求項2記載の電力変換装置。
- 前記ヒューズ用スイッチング素子は、前記正極電極と前記負極電極との間の電圧に耐え得る高耐圧小容量IGBTであることを特徴とする請求項1乃至3の何れか一項記載の電力変換装置。
- 前記ヒューズ用スイッチング素子は、コレクタが前記正極側端子に接続されかつエミッタが前記負極側端子に接続されるように実装されると共に、
前記遮断部の金属細線は、前記ヒューズ用スイッチング素子のエミッタと前記負極電極との間に介在することを特徴とする請求項4記載の電力変換装置。 - 前記負極側端子と前記ヒューズ用スイッチング素子のエミッタとは、金属細線を介して接続されることを特徴とする請求項5記載の電力変換装置。
- 前記短絡検出回路は、前記上アーム素子のオン駆動時にセンスエミッタに流れる電流に基づいて、前記下アーム素子の短絡を検出することを特徴とする請求項1乃至6の何れか一項記載の電力変換装置。
- 前記短絡検出回路は、前記下アーム素子のコレクタ-エミッタ間電圧に基づいて、該下アーム素子の短絡を検出することを特徴とする請求項1乃至6の何れか一項記載の電力変換装置。
- 前記一対のパワー半導体素子は、樹脂モールドされるパワーモジュールに搭載される素子であることを特徴とする請求項1乃至8の何れか一項記載の電力変換装置。
- 前記一対のパワー半導体素子は、昇降圧回路又はインバータ回路を構成する素子であることを特徴とする請求項1乃至9の何れか一項記載の電力変換装置。
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US14/783,312 US9627957B2 (en) | 2013-05-22 | 2013-05-22 | Power conversion device |
DE112013007105.3T DE112013007105B4 (de) | 2013-05-22 | 2013-05-22 | Leistungsumwandlungsvorrichtung |
PCT/JP2013/064254 WO2014188538A1 (ja) | 2013-05-22 | 2013-05-22 | 電力変換装置 |
JP2015517984A JP6061029B2 (ja) | 2013-05-22 | 2013-05-22 | 電力変換装置 |
CN201380076700.2A CN105229910B (zh) | 2013-05-22 | 2013-05-22 | 电力转换装置 |
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JP2018065398A (ja) * | 2016-10-17 | 2018-04-26 | マツダ株式会社 | 車両の電源供給装置 |
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GB2545236B (en) * | 2015-12-10 | 2017-12-13 | Rolls Royce Plc | A method of controlling an inverter |
JP6800723B2 (ja) * | 2016-12-05 | 2020-12-16 | 株式会社ミツトヨ | エンコーダ及びエンコーダの光源 |
CN108879904A (zh) * | 2018-08-22 | 2018-11-23 | 成都信息工程大学 | 一种车载充电机变流电路 |
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DE112013007105T5 (de) | 2016-03-10 |
US9627957B2 (en) | 2017-04-18 |
US20160072401A1 (en) | 2016-03-10 |
JPWO2014188538A1 (ja) | 2017-02-23 |
CN105229910B (zh) | 2017-11-28 |
DE112013007105B4 (de) | 2021-08-05 |
CN105229910A (zh) | 2016-01-06 |
JP6061029B2 (ja) | 2017-01-18 |
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