WO2014102899A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- WO2014102899A1 WO2014102899A1 PCT/JP2012/083466 JP2012083466W WO2014102899A1 WO 2014102899 A1 WO2014102899 A1 WO 2014102899A1 JP 2012083466 W JP2012083466 W JP 2012083466W WO 2014102899 A1 WO2014102899 A1 WO 2014102899A1
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- connection point
- wiring
- switching element
- capacitor
- terminal
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 50
- 239000003990 capacitor Substances 0.000 claims abstract description 99
- 238000001514 detection method Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/525—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body with adaptable interconnections
- H01L23/5256—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body with adaptable interconnections comprising fuses, i.e. connections having their state changed from conductive to non-conductive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0611—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region
- H01L27/0617—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type
- H01L27/0629—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type in combination with diodes, or resistors, or capacitors
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
Definitions
- the technology disclosed in this specification relates to a semiconductor device.
- a capacitor may be provided in parallel with the semiconductor element.
- the capacitor reduces, for example, a surge voltage applied to the semiconductor element.
- an overcurrent may flow through the wiring in which the capacitor is arranged.
- a capacitor is provided in parallel with a diode.
- a fuse portion (blown pattern) is provided in a part of the bonding electrode pattern of the capacitor. When the capacitor is short-circuited, the fuse is blown and the current path is interrupted. Thereby, a possibility that overcurrent may flow through the wiring can be reduced.
- This specification provides a technology capable of detecting that a fuse portion is blown in a semiconductor device including a wiring in which a capacitor and a fuse portion are arranged in an energization path.
- the semiconductor device disclosed in the present specification includes a first wiring having a first end and a second end to which a voltage lower than the first end is applied.
- the semiconductor device includes a second wiring having a third end connected to the first end and a fourth end connected to the second end.
- the semiconductor device includes a switching element arranged with a first wiring.
- the semiconductor device includes a capacitor disposed on the second wiring.
- the semiconductor device includes a fuse portion that is disposed on the second wiring and is located closer to the third end than the capacitor.
- the semiconductor device includes a potential detection unit connected to the second wiring between the fuse unit and the capacitor and capable of detecting the potential at the connection point.
- the fuse portion is disposed on the high potential side of the capacitor, and the second wiring and the potential detection portion are connected at a position between the capacitor and the fuse portion. For this reason, when the fuse portion is blown, the potential detected by the potential detection portion decreases. Thereby, the electric potential detection part can detect that the fuse part was blown.
- FIG. 1 is a circuit diagram illustrating a DC-DC converter 2 of Embodiment 1.
- FIG. 3 is a cross-sectional view illustrating a sealed capacitor body 90 according to the first embodiment.
- 3 is a perspective view showing a capacitor element 180 of Example 1.
- FIG. 3 is a graph showing a relationship between a target voltage signal STG and an output voltage V OUT of the DC-DC converter 2 of Embodiment 1.
- 6 is a circuit diagram illustrating a DC-DC converter 202 according to Embodiment 2.
- the semiconductor device disclosed in this specification further includes a control device that reduces the current flowing through the switching element when it is determined that the second wiring is cut off from the potential detected by the potential detection unit. May be.
- the semiconductor device disclosed in this specification is a semiconductor device that receives an input voltage between an input terminal and an input-side reference terminal and outputs an output voltage between the output terminal and the output-end-side reference terminal. It may be.
- the semiconductor device may include an input / output line that connects between the input terminal and the output terminal.
- the semiconductor device may include a reference potential line that connects between the input side reference terminal and the output side reference terminal.
- the semiconductor device may include a first switching element disposed on the input / output line.
- the semiconductor device may include a reactor disposed on the input / output line and positioned closer to the input terminal than the first switching element.
- the semiconductor device is arranged on the input / output line and connects between a first connection point located between the reactor and the first switching element and a second connection point located on the reference potential line. Wiring may be provided.
- the semiconductor device may include a second switching element disposed on the third wiring.
- the semiconductor device may include a fourth wiring connected in parallel with one of the first switching element and the second switching element.
- the semiconductor device may include a first capacitor disposed on the fourth wiring.
- the semiconductor device may include a first fuse portion disposed on the fourth wiring and positioned on the high potential side of the first capacitor.
- the semiconductor device may include a potential detection unit that is connected to the fourth wiring between the first fuse unit and the first capacitor and that can detect the potential at the connection point.
- the first fuse portion is disposed on the high potential side of the first capacitor, and the fourth wiring and the potential detection portion are connected at a position between the first capacitor and the first fuse portion. For this reason, when the first fuse portion is blown, the potential detected by the potential detection portion decreases. Thereby, it can be detected that the first fuse portion is blown.
- the input / output line has a third connection point located on the output terminal side of the first switching element, and the fourth wiring connects between the third connection point and the first connection point. You may do it.
- the potential detected by the potential detecting portion is lowered. Thereby, it can be detected that the first fuse portion is blown.
- the reference potential line has a fourth connection point located closer to the output side reference terminal than the second connection point, and the fourth wiring is between the first connection point and the fourth connection point. May be connected.
- the input / output line has a fifth connection point located closer to the output terminal than the first switching element, and the reference potential line is located closer to the output reference terminal than the second connection point. It has the 6th connection point, and the 4th wiring may connect between the 5th connection point and the 6th connection point.
- the first capacitor is connected in parallel with the first switching element and the second switching element.
- the potential detected by the potential detection portion is lowered. Thereby, it can be detected that the first fuse portion is blown.
- the semiconductor device disclosed in this specification is a switching element connected in parallel to the fourth wiring when it is determined that the fourth wiring is cut off from the potential detected by the potential detection unit. You may further have a control apparatus which reduces the electric current which flows.
- the DC-DC converter 2 boosts the input voltage input from the battery 4. As shown in FIG. 1, the DC-DC converter 2 outputs an output voltage to a load (not shown).
- the load is, for example, an inverter (not shown).
- the DC-DC converter 2 has an input terminal 6 and an input side reference terminal 8.
- the input terminal 6 is connected to the positive electrode of the battery 4.
- the input side reference terminal 8 is connected to the negative electrode of the battery 4. That is, an input voltage is input between the input terminal 6 and the input side reference terminal 8.
- the input side reference terminal 8 is connected to the ground.
- the DC-DC converter 2 has an output terminal 10 and an output side reference terminal 12.
- the output terminal 10 is connected to, for example, an input terminal (not shown) on the positive electrode side of the inverter.
- the output side reference terminal 12 is connected to, for example, an input terminal (not shown) on the negative side of the inverter. That is, the output voltage V OUT is output from between the output terminal 10 and the output side reference terminal 12.
- the DC-DC converter 2 has an input / output line 14 and a reference potential line 16.
- the DC-DC converter 2 includes a first switching element 18, a reactor 22, and a second switching element 20.
- the input / output line 14 connects the input terminal 6 and the output terminal 10.
- the reference potential line 16 connects the input side reference terminal 8 and the output side reference terminal 12.
- the first switching element 18 and the reactor 22 are disposed on the input / output line 14.
- the reactor 22 is located closer to the input terminal 6 than the first switching element 18.
- a connection point 24 is provided between the reactor 22 and the first switching element 18.
- a connection point 26 is provided on the reference potential line 16.
- the connection point 24 and the connection point 26 are connected by a wiring 21.
- the second switching element 20 is disposed on the wiring 21.
- MOSFET MOSFET, IGBT, etc.
- a freewheel diode 28 is arranged in parallel with the first switching element 18.
- a freewheel diode 30 is disposed in parallel with the second switching element 20.
- connection point 55 on the input / output line 14 and the connection point 58 on the reference potential line 16 are connected by the wiring 33.
- the connection point 55 is located closer to the output terminal 10 than the first switching element 18 and a connection point 52 described later.
- connection point 58 is located closer to the output side reference terminal 12 than the connection point 26 and the connection point 54 described later.
- a smoothing capacitor 32 is disposed on the wiring 33.
- the DC-DC converter 2 has a control device 34.
- a terminal 38 of the control device 34 is connected to the gate of the first switching element 18.
- the terminal 40 of the control device 34 is connected to the gate of the second switching element 20.
- the control device 34 changes the gate voltage of the first switching element 18 to switch the first switching element 18 on and off.
- the control device 34 changes the gate voltage of the second switching element 18 to switch the second switching element 20 on and off.
- a connection point 52 is provided on the input / output line 14.
- the connection point 52 is located closer to the output terminal 10 than the first switching element 18.
- the connection point 52 is located between the first switching element 18 and the connection point 55 described above.
- the connection point 24 on the input / output line 14 and the connection point 52 are connected via a connection point 56. That is, the connection point 24 and the connection point 56 are connected by the wiring 25, and the connection point 56 and the connection point 52 are connected by the wiring 63.
- the wiring 63 is arranged in parallel with the first switching element 18.
- a capacitor 58 is disposed on the wiring 63. In other words, the capacitor 58 is arranged in parallel with the first switching element 18.
- a part of the input / output line 14 may be referred to as a wiring 19.
- the wiring 19 is a portion between the connection point 52 and the connection point 24.
- connection point 54 is provided on the reference potential line 16.
- the connection point 54 is located closer to the output side reference terminal 12 than the connection point 26.
- the connection point 54 is located between the connection point 26 and the connection point 58 described above.
- the connection point 24 and the connection point 54 are connected via a connection point 56. That is, the connection point 24 and the connection point 56 are connected by the wiring 25 as described above, and the connection point 56 and the connection point 54 are connected by the wiring 65.
- the wiring 65 is arranged in parallel with the second switching element 20.
- a capacitor 60 is disposed on the wiring 65. In other words, the capacitor 60 is disposed in parallel with the second switching element 20.
- the fuse 63 is provided in the wiring 63.
- the fuse portion 62 is located closer to the connection point 52 than the capacitor 58.
- a connection point 66 is provided between the fuse portion 62 and the capacitor 58.
- the DC-DC converter 2 includes a potential detection unit 41.
- the potential detector 41 is a voltmeter.
- the potential detector 41 is connected to the connection point 66.
- the potential detector 41 detects a potential difference between the reference voltage terminal 44 to which a predetermined reference voltage (specifically, ground) is applied and the connection point 66.
- a predetermined reference voltage specifically, ground
- the potential detector 41 detects the potential of the connection point 66.
- the potential detector 41 outputs a signal corresponding to the potential at the connection point 66.
- the signal is input to the terminal 36 of the control device 34.
- part of the wiring 63 may be referred to as the wiring 162.
- the wiring 162 is a portion between the connection point 52 and the connection point 66.
- the wiring 65 is provided with a fuse portion 64.
- the fuse portion 64 is located closer to the connection point 56 than the capacitor 60.
- a connection point 68 is provided between the fuse portion 64 and the capacitor 60.
- the DC-DC converter 2 includes a potential detection unit 42. Specifically, the potential detector 42 is a voltmeter. The potential detector 42 is connected to the connection point 68. Specifically, the potential detector 42 detects a potential difference between the reference voltage terminal 45 to which a predetermined reference voltage (specifically, ground) is applied and the connection point 68. As a result, the potential detector 42 detects the potential at the connection point 68. The potential detector 42 outputs a signal corresponding to the potential at the connection point 68. The signal is input to the terminal 37 of the control device 34.
- a predetermined reference voltage specifically, ground
- the capacitor sealing body 90 includes a capacitor element 180, a source side electrode 92, a drain side electrode 94, and a voltage monitor terminal 96.
- the drain side electrode 94 is located at the upper end portion of the capacitor sealing body 90. The upper surface of the drain side electrode 94 is exposed from the mold resin 98.
- the source side electrode 92 is located at the lower end of the capacitor sealing body 90. The lower surface of the source side electrode 92 is exposed from the mold resin 98.
- the capacitor element 180 includes a main body 181, a terminal 182, and a terminal 183.
- a terminal 182 of the capacitor element 180 extends from the upper left end of the capacitor element 180 to the outside of the capacitor element 180 (specifically, the upper side in FIG. 3).
- the tip of the terminal 182 is connected to the drain side electrode 94.
- the terminal 183 of the capacitor element 180 extends from the lower right end of the capacitor element 180 to the outside of the capacitor element 180 (specifically, the lower side of FIG. 3).
- the tip of the terminal 183 is connected to the source side electrode 92.
- the capacitor element 180 has a pair of electrodes (not shown) inside the main body 181. One of the pair of electrodes is connected to the terminal 183 inside the capacitor element 180. The other of the pair of electrodes is connected to a terminal 182 and a terminal 184 described later within the capacitor element 180.
- Capacitor element 180 further has a terminal 184.
- the terminal 184 extends from the upper left end of the capacitor element 180 to the outside of the capacitor element 180 (specifically, the left direction in FIG. 3).
- a connection plate 102 is disposed on the lower surface of the drain side electrode 94 described above. The tip of the terminal 183 is connected to the connection plate 102.
- the connection plate 102 and the voltage monitor terminal 96 are connected by a wiring 104. The left part of the voltage monitor terminal 96 in FIG. 2 is exposed outside the mold resin 98.
- the terminal 184 of the capacitor element 180 is also connected to the drain side electrode 94 via the connection plate 102.
- the terminal 183 is composed of five strip-shaped conductors.
- the terminal 182 of the capacitor element 180 is composed of two strip-shaped conductors. For this reason, the total cross-sectional area of each conductor of the terminal 182 is smaller than the total cross-sectional area of each conductor of the terminal 183. For this reason, for example, when an overcurrent flows through the capacitor element 180 due to a short circuit failure of the capacitor element 180, the terminal 182 is melted.
- the terminal 184 is composed of a single strip-shaped conductor.
- the drain side electrode 94 corresponds to the connection point 52 in FIG.
- the drain side electrode 94 is connected to the drain electrode of the first switching element 18.
- the source side electrode 92 corresponds to the connection point 56 in FIG.
- the source side electrode 92 is connected to the source electrode of the first switching element 18.
- Capacitor element 180 corresponds to capacitor 58 of FIG.
- the terminal 182 corresponds to the wiring 162 in FIG.
- the terminal 182 is melted by an overcurrent as described above. For this reason, the terminal 182 also corresponds to the fuse portion 62 of FIG.
- the terminal 184 corresponds to the wiring 67 in FIG.
- the terminal 184 is connected to the potential detection unit 41.
- a portion where terminal 184 and capacitor element 180 are in contact corresponds to connection point 66.
- the terminal 183 corresponds to the wiring between the capacitor 58 and the connection point 56.
- the drain side electrode 94 corresponds to the connection point 56 in FIG.
- the drain side electrode 94 is connected to the drain electrode of the second switching element 20.
- the source side electrode 92 corresponds to the connection point 54 in FIG.
- the source side electrode 92 is connected to the source electrode of the second switching element 20.
- the capacitor element 180 corresponds to the capacitor 60 of FIG.
- the terminal 182 corresponds to the wiring 164 in FIG.
- the terminal 182 corresponds to the fuse part 64 of FIG.
- the terminal 184 corresponds to the wiring 69 in FIG. Terminal 184 is connected to potential detector 42.
- the terminal 183 corresponds to the wiring between the capacitor 60 and the connection point 54.
- the control device 34 of the DC-DC converter 2 receives a target voltage signal STG from a travel control device (not shown).
- the DC-DC converter 2 outputs an output voltage V OUT corresponding to the input target voltage signal STG .
- the standard mode characteristic 110 is a relationship between the level of the target voltage signal STG and the magnitude of the output voltage VOUT in a normal state, that is, in a state where it is not detected that the fuse portions 62 and 64 are blown.
- the level of the target voltage signal STG and the magnitude of the output voltage VOUT are directly proportional.
- the DC-DC converter 2 controls the output voltage V OUT by PWM control.
- the DC-DC converter 2 adjusts the duty ratio between the first switching element 18 and the second switching element 20 so that the output voltage V OUT becomes a value corresponding to the target voltage signal STG . Note that the solid line graph of FIG. The protection mode characteristic 112 will be described in detail later.
- the control device 34 alternately turns on / off the first switching element 18 and the second switching element 20.
- a current flows through the reactor 22.
- the first switching element 18 is turned on and the second switching element 20 is turned off, the current flowing through the reactor 22 decreases.
- a counter electromotive force is generated in the reactor 22.
- the counter electromotive force is generated in a direction (a direction in which a current flows from the input terminal 6 toward the output terminal 10) that suppresses a decrease in the current flowing through the reactor 22. For this reason, the potential of the output terminal 10 rises. Thereby, the voltage between the output terminal 10 and the output side reference terminal 12 is boosted.
- the capacitor 58 is arranged in parallel with the first switching element 18 as described above. Thereby, a surge voltage when the first switching element 18 is turned on / off is reduced.
- a capacitor 60 is arranged in parallel with the second switching element 20. Thereby, the surge voltage when the second switching element 20 is turned on / off is reduced.
- the fuse portion 62 is located on the higher potential side than the capacitor 58.
- the potential detection unit 41 detects the potential of the connection point 66 located between the capacitor 58 and the fuse unit 62. For this reason, when the fuse part 62 blows, the electric potential detected by the electric potential detection part 41 will fall. Thereby, the control apparatus 34 can detect that the fuse part 62 has blown.
- the fuse portion 64 is located on the higher potential side than the capacitor 60.
- the potential detection unit 42 detects the potential of the connection point 68 located between the capacitor 60 and the fuse unit 64. For this reason, when the fuse part 64 blows, the electric potential detected by the electric potential detection part 42 will fall. Thereby, the control apparatus 34 can detect that the fuse part 64 has blown.
- a part of the wiring 65 may be referred to as a wiring 164.
- the wiring 164 is a portion between the connection point 56 and the connection point 68.
- the control device 34 reduces the current flowing through the first switching element 18 when detecting that the fuse portion 62 is blown. Specifically, the control device 34 outputs the output voltage V OUT according to the above-described protection mode characteristic 112 when it is detected that the fuse portion 62 is blown.
- a solid line graph 112 in FIG. 4 shows the protection mode characteristic 112.
- the protection mode characteristic 112 is a relationship between the level of the target voltage signal STG and the magnitude of the output voltage V OUT when it is detected that the fuse portion 62 is blown.
- the target voltage signal STG and the output voltage V OUT similarly to the standard mode characteristic 110, the target voltage signal STG and the output voltage V OUT have a direct proportional relationship.
- the magnitude of the output voltage V OUT becomes constant at the upper limit value L 1 . That is, in the protection mode characteristic 112, the magnitude of the output voltage V OUT is reduced as compared with the standard mode characteristic 110.
- the upper limit value L 1 of the protection mode characteristic 112 is appropriately determined so that the magnitude of the output voltage V OUT becomes a voltage value that can suppress the breakdown of the first switching element 18 due to the surge voltage.
- the current flowing through the first switching element 18 is reduced. Thereby, a current can be passed through the first switching element 18 while reducing the surge voltage applied to the first switching element 18.
- control device 34 reduces the current flowing through the second switching element 20 when it is detected that the fuse portion 64 is blown.
- connection point 52 is an example of the “first end” in the claims
- connection point 24 is an example of the “second end” in the claims
- the wiring 19 is the “first end” in the claims. It is an example of “1 wiring”.
- connection point 52 is an example of the “third end” in the claims
- connection point 56 is an example of the “fourth end” in the claims
- the wiring 63 is the “first end” in the claims. It is an example of “two wirings”.
- connection point 24 is an example of the “first end” in the claims
- connection point 26 is an example of the “second end” in the claims
- the wiring 21 is the “first end” in the claims. It is an example of “1 wiring”.
- connection point 56 is an example of the “third end” in the claims
- connection point 54 is an example of the “fourth end” in the claims
- the wiring 65 is the “first end” in the claims. It is an example of “two wirings”.
- connection point 24 is an example of a “first connection point” in the claims.
- connection point 26 is an example of a “second connection point” in the claims, and the wiring 19 is an example of a “third wiring” in the claims.
- connection point 52 is an example of “third connection point” in the claims, and the wiring 63 and the wiring 25 are examples of “fourth wiring”.
- connection point 24 is an example of a “first connection point” in the claims.
- connection point 26 is an example of a “second connection point” in the claims, and the wiring 21 is an example of a “third wiring” in the claims.
- connection point 54 is an example of a “fourth connection point” in the claims, and the wiring 25 and the wiring 65 are examples of a “fourth wiring”.
- a connection point 86 is provided on the input / output line 14.
- the connection point 86 is located closer to the output terminal 10 than the first switching element 18. Further, the connection point 86 is located between the first switching element 18 and the connection point 56.
- a connection point 88 is provided on the reference potential line 16. The connection point 88 is located closer to the output side reference terminal 12 than the connection point 26. The connection point 88 is located between the connection point 26 and the connection point 58.
- the connection point 86 and the connection point 88 are connected by a wiring 83. That is, the wiring 83 is disposed in parallel with the first switching element 18 and the second switching element 20.
- a capacitor 80 is disposed on the wiring 83. In other words, the capacitor 80 is arranged in parallel with the first switching element 18 and the second switching element 20.
- the fuse 83 is provided in the wiring 83.
- the fuse portion 82 is located closer to the connection point 86 than the capacitor 80.
- a connection point 84 is provided between the fuse portion 82 and the capacitor 80.
- the DC-DC converter 202 includes a potential detection unit 48.
- the potential detection unit 48 detects the potential at the connection point 84.
- the capacitor 80 is disposed in parallel with the first switching element 18 and the second switching element 20. Thereby, the surge voltage when the first switching element 18 and the second switching element 20 are turned on / off is reduced.
- the fuse portion 82 is located on the higher potential side than the capacitor 80.
- the potential detection unit 48 detects the potential of the connection point 84 located between the capacitor 80 and the fuse unit 82. For this reason, when the fuse part 82 is blown, the potential detected by the potential detection part 48 is lowered. Thereby, it can be detected that the fuse portion 82 has melted.
- the control device 34 reduces the current flowing through the first switching element 18 and the second switching element 20 when it is detected that the fuse portion 82 is blown, similarly to the control device 34 of the first embodiment.
- connection point 86 is an example of the “first end” in the claims
- connection point 24 is an example of the “second end” in the claims
- the wiring 19 is the “first end” in the claims. It is an example of “1 wiring”.
- connection point 86 is an example of the “third end” in the claims
- connection point 88 is an example of the “fourth end” in the claims
- the wiring 83 is the “first end” in the claims. It is an example of “two wirings”.
- connection point 24 is an example of the “first end” in the claims
- connection point 26 is an example of the “second end” in the claims
- the wiring 21 is the “first end” in the claims. It is an example of “1 wiring”.
- connection point 86 is an example of the “third end” in the claims
- connection point 88 is an example of the “fourth end” in the claims
- the wiring 83 is the “first end” in the claims. It is an example of “two wirings”.
- connection point 24 is an example of a “first connection point” in the claims.
- connection point 26 is an example of a “second connection point” in the claims, and the wiring 21 is an example of a “third wiring” in the claims.
- connection point 86 is an example of a “fifth connection point” in the claims.
- connection point 88 is an example of a “sixth connection point” in the claims.
- the wiring 83 is an example of a “fourth wiring” in the claims.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
- Dc-Dc Converters (AREA)
- Protection Of Static Devices (AREA)
Abstract
Description
Claims (7)
- 第1端部と、第1端部よりも低い電圧が印加される第2端部と、を有する第1配線と、
第1端部に接続される第3端部と、第2端部に接続される第4端部と、を有する第2配線と、
第1配線に配置されたスイッチング素子と、
第2配線に配置されたコンデンサと、
第2配線に配置され、コンデンサよりも第3端部側に位置するヒューズ部と、
ヒューズ部とコンデンサとの間で第2配線に接続され、その接続点の電位を検知可能な電位検知部と、
を備える半導体装置。 - 電位検知部によって検知された電位から第2配線が遮断されたと判断されるときに、スイッチング素子に流れる電流を低減する制御装置をさらに有する、請求項1の半導体装置。
- 入力端子と入力側基準端子との間に入力電圧を入力され、出力端子と出力端側基準端子との間から出力電圧を出力する半導体装置であって、
入力端子と出力端子との間を接続する入出力ラインと、
入力側基準端子と出力側基準端子との間を接続する基準電位ラインと、
入出力ラインに配置された第1スイッチング素子と、
入出力ラインに配置され、第1スイッチング素子よりも入力端子側に位置するリアクトルと、
入出力ラインに配置されると共にリアクトルと第1スイッチング素子との間に位置する第1接続点と、基準電位ライン上に位置する第2接続点との間を接続する第3配線と、
第3配線上に配置された第2スイッチング素子と、
第1スイッチング素子と第2スイッチング素子の一方のスイッチング素子と並列に接続された第4配線と、
第4配線に配置された第1コンデンサと、
第4配線に配置され、第1コンデンサの高電位側に位置する第1ヒューズ部と、
第1ヒューズ部と第1コンデンサとの間で第4配線に接続され、その接続点の電位を検知可能な電位検知部と、
を備える半導体装置。 - 入出力ラインは、第1スイッチング素子よりも出力端子側に位置する第3接続点を有しており、
第4配線は、第3接続点と第1接続点との間を接続している、請求項3の半導体装置。 - 基準電位ラインは、第2接続点よりも出力側基準端子側に位置する第4接続点を有しており、
第4配線は、第1接続点と第4接続点との間を接続している請求項3の半導体装置。 - 入出力ラインは、第1スイッチング素子よりも出力端子側に位置する第5接続点を有しており、
基準電位ラインは、第2接続点よりも出力側基準端子側に位置する第6接続点を有しており、
第4配線は、第5接続点と第6接続点との間を接続している請求項3の半導体装置。 - 電位検知部によって検知された電位から、第4配線が遮断されたと判断されるときに、第4配線と並列に接続されているスイッチング素子に流れる電流を低減する制御装置をさらに有する、請求項3~6のいずれか一項の半導体装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280077966.4A CN104871418B (zh) | 2012-12-25 | 2012-12-25 | 半导体装置 |
PCT/JP2012/083466 WO2014102899A1 (ja) | 2012-12-25 | 2012-12-25 | 半導体装置 |
US14/443,532 US20150295489A1 (en) | 2012-12-25 | 2012-12-25 | Semiconductor device |
JP2014553911A JP5915775B2 (ja) | 2012-12-25 | 2012-12-25 | 半導体装置 |
DE112012007251.0T DE112012007251T5 (de) | 2012-12-25 | 2012-12-25 | Halbleitervorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/083466 WO2014102899A1 (ja) | 2012-12-25 | 2012-12-25 | 半導体装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014102899A1 true WO2014102899A1 (ja) | 2014-07-03 |
Family
ID=51020059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/083466 WO2014102899A1 (ja) | 2012-12-25 | 2012-12-25 | 半導体装置 |
Country Status (5)
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US (1) | US20150295489A1 (ja) |
JP (1) | JP5915775B2 (ja) |
CN (1) | CN104871418B (ja) |
DE (1) | DE112012007251T5 (ja) |
WO (1) | WO2014102899A1 (ja) |
Families Citing this family (4)
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CN105229910B (zh) * | 2013-05-22 | 2017-11-28 | 丰田自动车株式会社 | 电力转换装置 |
JP6824422B2 (ja) | 2017-08-30 | 2021-02-03 | 三菱電機株式会社 | 電力変換装置 |
CN111264023B (zh) * | 2017-10-25 | 2023-10-31 | 东芝三菱电机产业系统株式会社 | 电力转换装置 |
US10848053B2 (en) * | 2018-07-13 | 2020-11-24 | Kohler Co. | Robust inverter topology |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH07264872A (ja) * | 1994-03-17 | 1995-10-13 | Toshiba Corp | インバータ装置 |
JP2005263409A (ja) * | 2004-03-18 | 2005-09-29 | Toshiba Elevator Co Ltd | エレベータ制御装置 |
JP2008253098A (ja) * | 2007-03-30 | 2008-10-16 | Toyota Motor Corp | 冷却システムおよびそれを備える車両 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE60229260D1 (de) * | 2001-07-05 | 2008-11-20 | Power One Inc | Induktivitätsstrommessung in isolierten schaltreglern und damit zusammenhängende verfahren |
EP1453192B1 (de) * | 2003-02-28 | 2010-05-12 | ABB Schweiz AG | Kurzschlussstromgeschützte Umrichterschaltung |
JP2007325388A (ja) * | 2006-05-31 | 2007-12-13 | Hitachi Ltd | 電動機の制御装置及び車載用電動機駆動システム |
JP4905300B2 (ja) * | 2006-09-28 | 2012-03-28 | トヨタ自動車株式会社 | 電源システムおよびそれを備えた車両、電源システムの制御方法ならびにその制御方法をコンピュータに実行させるためのプログラムを記録したコンピュータ読取可能な記録媒体 |
US8975899B2 (en) * | 2009-09-11 | 2015-03-10 | Sma Solar Technology Ag | Inverter device comprising a topology surveying a series of capacitors |
-
2012
- 2012-12-25 DE DE112012007251.0T patent/DE112012007251T5/de not_active Withdrawn
- 2012-12-25 WO PCT/JP2012/083466 patent/WO2014102899A1/ja active Application Filing
- 2012-12-25 US US14/443,532 patent/US20150295489A1/en not_active Abandoned
- 2012-12-25 JP JP2014553911A patent/JP5915775B2/ja not_active Expired - Fee Related
- 2012-12-25 CN CN201280077966.4A patent/CN104871418B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07264872A (ja) * | 1994-03-17 | 1995-10-13 | Toshiba Corp | インバータ装置 |
JP2005263409A (ja) * | 2004-03-18 | 2005-09-29 | Toshiba Elevator Co Ltd | エレベータ制御装置 |
JP2008253098A (ja) * | 2007-03-30 | 2008-10-16 | Toyota Motor Corp | 冷却システムおよびそれを備える車両 |
Also Published As
Publication number | Publication date |
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DE112012007251T5 (de) | 2015-10-08 |
CN104871418B (zh) | 2017-03-29 |
US20150295489A1 (en) | 2015-10-15 |
CN104871418A (zh) | 2015-08-26 |
JPWO2014102899A1 (ja) | 2017-01-12 |
JP5915775B2 (ja) | 2016-05-11 |
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