JP2016220378A5 - - Google Patents
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- JP2016220378A5 JP2016220378A5 JP2015101977A JP2015101977A JP2016220378A5 JP 2016220378 A5 JP2016220378 A5 JP 2016220378A5 JP 2015101977 A JP2015101977 A JP 2015101977A JP 2015101977 A JP2015101977 A JP 2015101977A JP 2016220378 A5 JP2016220378 A5 JP 2016220378A5
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- JP
- Japan
- Prior art keywords
- power supply
- mosfet
- supply device
- operation mode
- diode
- Prior art date
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- 239000003990 capacitor Substances 0.000 claims 5
- 230000001360 synchronised Effects 0.000 claims 3
- 238000009499 grossing Methods 0.000 claims 2
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000003247 decreasing Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 claims 1
Claims (11)
第一のＭＯＳＦＥＴのソースと第二のＭＯＳＦＥＴのドレインが接続され、
前記第一のダイオードのカソードと前記第一のＭＯＳＦＥＴのドレインが平滑コンデンサの正極側に接続され、
前記第二のダイオードのアノードと前記第二のＭＯＳＦＥＴのソースが前記平滑コンデンサの負極側に接続され、
前記第一のダイオードと前記第二のダイオードとの接続点と、前記第一のＭＯＳＦＥＴと前記第二のＭＯＳＦＥＴとの接続点に、リアクトルを介して、交流電源が接続され、
前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴのスイッチングにより、前記交流電源の交流電圧を直流電圧に変換する直流電源装置において、
前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴが、前記交流電圧の極性に応じて、同期整流動作をするようにスイッチングされる全波整流動作モードと、
前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴが、前記交流電圧の半サイクルにおいて、相補的に所定回数オン・オフスイッチングされる部分スイッチング動作モードと、
前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴが、所定の周波数で相補的にオン・オフスイッチングされる高速スイッチング動作モードと、
を有し、
さらに、前記第一のＭＯＳＦＥＴの制御電源となるブートストラップ回路を備え、
前記ブートストラップ回路のコンデンサが、前記第二のＭＯＳＦＥＴがスイッチングされてオンする時に充電されることを特徴とする直流電源装置。 The anode of the first diode and the cathode of the second diode are connected,
The source of the first MOSFET and the drain of the second MOSFET are connected,
The cathode of the first diode and the drain of the first MOSFET are connected to the positive side of the smoothing capacitor;
The anode of the second diode and the source of the second MOSFET are connected to the negative side of the smoothing capacitor;
An AC power supply is connected to a connection point between the first diode and the second diode and a connection point between the first MOSFET and the second MOSFET via a reactor.
In the DC power supply device that converts the AC voltage of the AC power supply into a DC voltage by switching the first MOSFET and the second MOSFET,
A full-wave rectification operation mode in which the first MOSFET and the second MOSFET are switched to perform a synchronous rectification operation according to the polarity of the AC voltage;
A partial switching operation mode in which the first MOSFET and the second MOSFET are complementarily switched on and off a predetermined number of times in a half cycle of the AC voltage;
A high-speed switching operation mode in which the first MOSFET and the second MOSFET are switched on and off complementarily at a predetermined frequency;
Have
Furthermore, a bootstrap circuit serving as a control power source for the first MOSFET is provided,
The DC power supply device, wherein a capacitor of the bootstrap circuit is charged when the second MOSFET is switched on.
前記部分スイッチング動作モードおよび前記高速スイッチング動作モードにおいて、前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴの一方および他方が、それぞれ昇圧チョッパ動作および同期整流動作をするようにスイッチングされることを特徴とする直流電源装置。 The DC power supply device according to claim 1,
In the partial switching operation mode and the high-speed switching operation mode, one and the other of the first MOSFET and the second MOSFET are switched to perform a step-up chopper operation and a synchronous rectification operation, respectively. DC power supply.
前記ブートストラップ回路の前記コンデンサが、前記第二のＭＯＳＦＥＴが前記昇圧チョッパ動作または前記同期整流動作をする時に充電されることを特徴とする直流電源装置。 In the DC power supply device according to claim 2,
The DC power supply device, wherein the capacitor of the bootstrap circuit is charged when the second MOSFET performs the step-up chopper operation or the synchronous rectification operation.
前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴは、前記交流電圧のゼロクロス点付近において、前記昇圧チョッパ動作のためにスイッチングされることを特徴とする直流電源装置。 In the DC power supply device according to claim 3,
The DC power supply device according to claim 1, wherein the first MOSFET and the second MOSFET are switched for the step-up chopper operation near a zero cross point of the AC voltage.
前記昇圧チョッパ動作に伴って、力率改善電流を流すことを特徴とする直流電源装置。 In the DC power supply device according to claim 2,
A DC power supply device, wherein a power factor correction current is caused to flow along with the step-up chopper operation.
前記高速スイッチングモードの場合、前記第一のＭＯＳＦＥＴおよび前記第二のＭＯＳＦＥＴの前記一方の通流率を主回路電流の増加に応じて増加し、前記他方を前記主回路電流の増加に応じて低減することを特徴とする直流電源装置。 In the DC power supply device according to claim 2,
In the case of the high-speed switching mode, the conduction ratio of the one of the first MOSFET and the second MOSFET is increased as the main circuit current is increased, and the other is decreased as the main circuit current is increased. A direct current power supply device.
前記ブートストラップ回路の充電時定数を低減する時定数切替手段を備えることを特徴とする直流電源装置。 In the DC power supply device according to claim 3,
A DC power supply device comprising time constant switching means for reducing a charging time constant of the bootstrap circuit.
前記時定数切替手段が、前記ブートストラップ回路の抵抗に並列に接続されるスイッチング素子であり、前記スイッチング素子は、前記ブートストラップ回路の前記コンデンサの電圧に応じてオンされることを特徴とする直流電源装置。 In the DC power supply device according to claim 7,
DC said time constant switching means is a switching element connected in parallel with the resistor of the bootstrap circuit, the switching element, characterized in that it is turned on in response to the voltage of the capacitor of the bootstrap circuit Power supply.
前記時定数切替手段が、前記ブートストラップ回路の抵抗に並列に接続されるＮＴＣサーミスタであることを特徴とする直流電源装置。 In the DC power supply device according to claim 7,
The DC power supply device characterized in that the time constant switching means is an NTC thermistor connected in parallel to the resistance of the bootstrap circuit.
負荷の大きさに応じて、前記全波整流動作モード、前記部分スイッチング動作モードおよび前記高速スイッチング動作モードのいずれかが設定されることを特徴とする直流電源装置。 The DC power supply device according to claim 1,
One of the full-wave rectification operation mode, the partial switching operation mode, and the high-speed switching operation mode is set according to the size of the load.
前記電動圧縮機に交流電力を供給するインバータ回路と、
前記インバータ回路を負荷とする直流電源装置と、
を備え、
前記電動圧縮機によって圧縮される冷媒が冷暖房サイクルに循環する空気調和機において、
前記直流電源装置が、請求項１に記載される直流電源装置であることを特徴とする空気調和機。 An electric compressor whose compressor is driven by an AC motor;
An inverter circuit for supplying AC power to the electric compressor;
A DC power supply device having the inverter circuit as a load;
With
In the air conditioner in which the refrigerant compressed by the electric compressor circulates in an air conditioning cycle,
An air conditioner, wherein the DC power supply device is the DC power supply device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015101977A JP6496607B2 (en) | 2015-05-19 | 2015-05-19 | DC power supply device and air conditioner using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015101977A JP6496607B2 (en) | 2015-05-19 | 2015-05-19 | DC power supply device and air conditioner using the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016220378A JP2016220378A (en) | 2016-12-22 |
| JP2016220378A5 true JP2016220378A5 (en) | 2018-05-24 |
| JP6496607B2 JP6496607B2 (en) | 2019-04-03 |
Family
ID=57578701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015101977A Active JP6496607B2 (en) | 2015-05-19 | 2015-05-19 | DC power supply device and air conditioner using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6496607B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3664271B1 (en) | 2017-08-04 | 2024-02-14 | Mitsubishi Electric Corporation | Power conversion device, motor drive device, and air conditioner |
| KR102507936B1 (en) | 2018-07-19 | 2023-03-08 | 미쓰비시덴키 가부시키가이샤 | Power converters, motor drives and air conditioners |
| EP3895300A4 (en) * | 2019-01-28 | 2022-08-31 | Murata Manufacturing Co., Ltd. | Bootstrap pre-charge circuit in totem-pole power factor correction converter |
| JP7162747B2 (en) * | 2019-08-30 | 2022-10-28 | 三菱電機株式会社 | DC power supplies, motor drives, blowers, compressors and air conditioners |
| JP7162746B2 (en) * | 2019-08-30 | 2022-10-28 | 三菱電機株式会社 | DC power supplies, motor drives, blowers, compressors and air conditioners |
| KR20220124503A (en) * | 2021-03-03 | 2022-09-14 | 엘지전자 주식회사 | Inverter circuit and controlling method thereof |
| JP2023136207A (en) * | 2022-03-16 | 2023-09-29 | 株式会社デンソー | Motor drive system, and motor drive program |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0365056A (en) * | 1989-07-31 | 1991-03-20 | Mitsubishi Electric Corp | Rectifier |
| JPH11215690A (en) * | 1998-01-29 | 1999-08-06 | Canon Inc | Overcurrent protective device |
| JP3695382B2 (en) * | 2001-11-07 | 2005-09-14 | 三菱電機株式会社 | Power supply device, motor drive device, and control method for power supply device |
| JP2004173479A (en) * | 2002-10-28 | 2004-06-17 | Densei Lambda Kk | Rectifier, power controlling apparatus, rectifying method, and power control method |
| US7158394B2 (en) * | 2004-04-12 | 2007-01-02 | Murata Manufacturing Co., Ltd. | Switching power supply circuit with a soft-start function |
| JP2008017627A (en) * | 2006-07-06 | 2008-01-24 | Matsushita Electric Ind Co Ltd | Power supply unit and air conditioner therewith |
| JP2008086053A (en) * | 2006-08-31 | 2008-04-10 | Daikin Ind Ltd | Converter circuit |
| JP2010119159A (en) * | 2008-11-11 | 2010-05-27 | Panasonic Corp | Dc power supply unit and air conditioner equipped with it |
| JP2014036573A (en) * | 2012-08-07 | 2014-02-24 | Merstech Inc | Rectifier circuit |
| JP5638585B2 (en) * | 2012-10-29 | 2014-12-10 | 三菱電機株式会社 | DC power supply device, refrigeration cycle device, air conditioner and refrigerator |
-
2015
- 2015-05-19 JP JP2015101977A patent/JP6496607B2/en active Active
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