JP2008502215A - スペクトル拡散アイソレータ - Google Patents
スペクトル拡散アイソレータ Download PDFInfo
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- JP2008502215A JP2008502215A JP2007515541A JP2007515541A JP2008502215A JP 2008502215 A JP2008502215 A JP 2008502215A JP 2007515541 A JP2007515541 A JP 2007515541A JP 2007515541 A JP2007515541 A JP 2007515541A JP 2008502215 A JP2008502215 A JP 2008502215A
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Abstract
Description
本発明は、デジタルアイソレータに関し、より詳細には、電圧検知ドライバ及びゲートドライバの絶縁を提供するデジタルアイソレータに関する。
本出願は、2004年6月3日に出願された「Transformer Isolator for Digital Power Supply」という発明の名称の同時係属中の米国出願第10/860,399号、2004年6月3日に出願された「On-Chip Transformer Isolator」という発明の名称の同時係属中の米国出願第10/860,519号、及び2004年12月22日に出願された「RF Isolator with Differential Input/Output」という発明の名称の同時係属中の米国出願第11/020,977号(代理人整理番号第CYGL/26,965号)、並びに2005年2月23日に出願された「RF Isolator for Isolating Voltage Sensing and Gate Drivers」という発明の名称の同時係属中の米国特許出願第11/064,413号(代理人整理番号第CYGL−27,015号)の一部継続出願である。
電力変換製品には、高絶縁を低コストで提供する高速デジタルリンクが必要とされる。電力変換製品の内部の通常のデジタルリンクは、毎秒50〜100メガビットの速度を必要とする。電力変換製品の入力と出力との間の絶縁は、2,500〜5,000Vの範囲で必要とされる。高速デジタル絶縁リンクを提供するための既存の解決法は、磁気パルスカプラ、磁気抵抗カプラ、静電カプラ、及び光カプラを使用することに焦点を当ててきた。
本明細書で開示され、且つ、特許請求の範囲に記載された本発明は、本発明の一態様において、機能回路部を含む第1のユニットと、機能回路部を含む第2のユニットとを含む回路パッケージを備える。少なくとも1つのRF絶縁リンクが、第1のユニットと第2のユニットとを相互接続する。この少なくとも1つのRF絶縁リンクは、第1のユニットと第2のユニットとの間の電圧絶縁を提供し、RF搬送波信号を使用して、第1のユニットと第2のユニットとの間にデータを提供することを可能にする。RF搬送波信号は、第1の周波数と第2の周波数との間で掃引される。
次に、図面、より詳細には図5を参照すると、RF絶縁リンクを利用するDC−DCスイッチング電源装置のブロック図が示されている。スイッチング電源装置は、複数のスイッチを利用する。これら複数のスイッチは、オン及びオフにされて、トランスの両端の入力DC電圧を負荷、すなわち、異なるDC電圧レベルの出力電圧、へ切り替える。トランスを介して負荷に誘導結合される電流を特定の方法で切り替えることによって、入力DC電圧とは異なる電圧レベルのDC出力電圧を負荷に提供することができる。制御された切り替えは、通常、或るタイプの制御回路によって容易にされる。この制御回路は、複数のアナログディスクリートデバイス(analog discrete device)から形成されるアナログ制御回路とすることもできるし、デジタル回路とすることもできる。デジタル制御回路では、デジタル信号プロセッサ(DSP)及びマイクロコントローラユニット(MCU)が利用されてきた。DSPは、スイッチのデューティサイクル及び相対的なタイミングを制御して、負荷への電力供給を制御するさまざまなトランジスタスイッチへの各制御パルスのエッジを変化させるようにする。デジタル領域でこの操作を実行するには、DSPは、多くの計算を行わなければならない。これには、特定の電源トポロジー、動作周波数、コンポーネント特性、及び性能要件をサポートするために、かなり多くの量のコードを生成することが必要になる。たとえば、インダクタのサイズは、PWM周波数の増加と共に減少し、不感時間は、トランジスタのターンオフ時間の増加と共に増加する等である。DSPは、これらの調整タスクを取り扱うことができるが、かなり複雑で且つ高価であり、電源アプリケーションにおけるコード変更は難しい。
Claims (20)
- 回路パッケージであって、
機能回路部を含む第1のユニットと、
機能回路部を含む第2のユニットと、
前記第1のユニットと前記第2のユニットとを相互接続する少なくとも1つのRF絶縁リンクであって、前記第1のユニットと前記第2のユニットとの間の電圧絶縁を提供し、さらに、RF搬送波信号を使用して、前記第1のユニットと前記第2のユニットとの間にデータを提供し、前記RF搬送波信号は、時間と共に変化する周波数を有する、RF絶縁リンクと
を備える回路パッケージ。 - 前記RF絶縁リンクは、
前記第1のユニットにおける第1のトランスと、
前記第2のユニットにおける第2のトランスと、
前記RF搬送波を前記RF絶縁リンク上に送信するための、前記第1のトランスに関連する送信機と、
前記RF絶縁リンク上の前記RF搬送波を受信するための、前記第2のトランスに関連する受信機と、
時間と共に変化する周波数を有する前記RF搬送波信号を生成するための回路部と
をさらに備える、請求項1に記載のシステム。 - 前記RF搬送波信号を生成するための前記回路部は、
低速リング発振器と、
前記低速リング発振器に接続されて制御コードを生成する、ディバイダ回路と、
前記ディバイダ回路からの前記制御コードに応じて、前記RF搬送波信号を生成するためのLC発振器回路であって、前記制御コードは、複数の周波数のうちの1つの周波数の生成を引き起こす、LC発振器回路と
をさらに備える、請求項2に記載のシステム。 - 前記RF搬送波信号を生成するための前記回路部は、
制御コードに応じて前記RF搬送波信号を生成するためのLC発振器回路であって、前記制御コードは、複数の周波数のうちの1つの周波数の生成を引き起こす、LC発振器回路と、
前記LC発振器回路とともにフィードバックループ内に接続されて、前記制御コードを生成するディバイダ回路と
をさらに備える、請求項2に記載のシステム。 - 前記RF搬送波信号を生成するための前記回路部は、
低速リング発振器と、
前記低速リング発振器からの入力に応じて制御コードをランダムに生成するための回路と、
前記ランダムに生成された制御コードに応じて、前記RF搬送波信号を生成するためのLC発振器回路であって、前記ランダムに生成された制御コードは、複数の周波数のうちの1つの周波数の生成を引き起こす、LC発振器回路と
をさらに備える、請求項2に記載のシステム。 - 前記回路は、
クロック信号を提供するための分周器回路と、
前記クロック信号及びデータ信号に応じて複数の出力ビットを提供するためのシフトレジスタと、
前記複数の出力ビットの第1の部分に応じて前記データ信号を生成するための論理回路部と
をさらに備え、
前記ランダムに生成された制御コードは、前記複数の出力ビットの第2の部分を含む、請求項5に記載のシステム。 - 前記シフトレジスタは、de Bruijnカウンタをさらに備える、請求項6に記載のシステム。
- 前記ユニットはチップを備える、請求項1に記載のシステム。
- 前記ユニットはチップ上のダイを備える、請求項1に記載のシステム。
- 回路パッケージであって、
機能回路部を含む第1のユニットと、
機能回路部を含む第2のユニットと、
前記第1のユニットにおける第1のトランスと、
前記第2のユニットにおける第2のトランスと、
前記第1のユニットと前記第2のユニットとの間で、RF絶縁リンク上に階段状のRF搬送波信号を送信するための、前記第1のトランスに関連する送信機と、
前記RF絶縁リンクを介して前記階段状のRF搬送波信号を受信するための、前記第2のトランスに関連する受信機と、
前記階段状のRF搬送波信号を生成するための、前記第1のユニットに関連する回路部であって、前記階段状のRF搬送波信号は、第1の周波数と第2の周波数との間で掃引される、前記回路部と
を備える回路パッケージ。 - 前記階段状のRF搬送波信号を生成するための前記回路部は、
低速リング発振器と、
前記低速リング発振器に接続されて制御コードを生成する、ディバイダ回路と、
前記ディバイダ回路からの前記制御コードに応じて、前記階段状のRF搬送波信号を生成するためのLC発振器回路であって、前記制御コードは、前記第1の周波数から前記第2の周波数までの複数の周波数のうちの1つの周波数の生成を引き起こす、前記LC発振器回路と
をさらに備える、請求項10に記載のシステム。 - 前記階段状のRF搬送波信号を生成するための前記回路部は、
低速リング発振器と、
前記低速リング発振器からの入力に応じて制御コードをランダムに生成するための回路と、
前記ランダムに生成された制御コードに応じて、前記階段状のRF搬送波信号を生成するためのLC発振器回路であって、前記ランダムに生成された制御コードは、前記第1の周波数から前記第2の周波数までの複数の周波数のうちの1つの周波数の生成を引き起こす、前記LC発振器回路と
をさらに備える、請求項10に記載のシステム。 - 前記回路は、
クロック信号を提供するための分周器回路と、
前記クロック信号及びデータ信号に応じて複数の出力ビットを提供するためのシフトレジスタと、
前記複数の出力ビットの第1の部分に応じて前記データ信号を生成するための論理回路部と
をさらに備え、
前記ランダムに生成された制御コードは、前記複数の出力ビットの第2の部分を含む、請求項12に記載のシステム。 - 前記シフトレジスタは、de Bruijnカウンタをさらに備える、請求項13に記載のシステム。
- 前記ユニットはチップを備える、請求項10に記載のシステム。
- 前記ユニットはチップ上のダイを備える、請求項10に記載のシステム。
- 回路パッケージであって、
機能回路部を含む第1のユニットと、
機能回路部を含む第2のユニットと、
前記第1のユニットにおける第1のトランスと、
前記第2のユニットにおける第2のトランスと、
前記第1のユニットと前記第2のユニットとの間で、絶縁リンク上に階段状のRF搬送波を送信するための、前記第1のトランスに関連する送信機と、
前記絶縁リンクを介して前記階段状のRF搬送波を受信するための、前記第2のトランスに関連する受信機と、
低速リング発振器と、
クロック信号を提供するための分周器回路と、
前記クロック信号及びデータ信号に応じて複数の出力ビットを提供するためのシフトレジスタであって、前記複数の出力ビットのうちの第1の部分は、ランダムに生成された制御コードを含む、シフトレジスタと、
前記複数の出力ビットの第2の部分に応じて前記データ信号を生成するための論理回路部と、
前記ランダムに生成された制御コードに応じて、前記階段状のRF搬送波信号を生成するためのRC発振器回路であって、前記階段状のRF搬送波信号は、第1の周波数と第2の周波数との間で掃引され、前記ランダムに生成された制御コードは、前記第1の周波数から前記第2の周波数までの複数の周波数のうちの1つの周波数の生成を引き起こす、RC発振器回路と
を備える回路パッケージ。 - 前記制御コードは、4ビット制御コードを含む、請求項19に記載のシステム。
- 前記ユニットはチップを備える、請求項19に記載のシステム。
- 前記ユニットはチップ上のダイを備える、請求項19に記載のシステム。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
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US10/860,519 US7447492B2 (en) | 2004-06-03 | 2004-06-03 | On chip transformer isolator |
US10/860,399 US7421028B2 (en) | 2004-06-03 | 2004-06-03 | Transformer isolator for digital power supply |
US11/020,977 US7376212B2 (en) | 2004-06-03 | 2004-12-22 | RF isolator with differential input/output |
US64047604P | 2004-12-30 | 2004-12-30 | |
US11/064,413 US7460604B2 (en) | 2004-06-03 | 2005-02-23 | RF isolator for isolating voltage sensing and gate drivers |
US11/089,348 US7302247B2 (en) | 2004-06-03 | 2005-03-24 | Spread spectrum isolator |
PCT/US2005/019313 WO2005122423A2 (en) | 2004-06-03 | 2005-06-02 | Spread spectrum isolator |
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JP2008502215A true JP2008502215A (ja) | 2008-01-24 |
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JP2007515541A Pending JP2008502215A (ja) | 2004-06-03 | 2005-06-02 | スペクトル拡散アイソレータ |
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US11115020B2 (en) | 2009-11-05 | 2021-09-07 | Rohm Co., Ltd. | Signal transmission circuit device, semiconductor device, method and apparatus for inspecting semiconductor device, signal transmission device, and motor drive apparatus using signal transmission device |
JP2018207127A (ja) * | 2009-11-05 | 2018-12-27 | ローム株式会社 | 信号伝達回路装置、半導体装置とその検査方法及び検査装置、並びに、信号伝達装置及びこれを用いたモータ駆動装置 |
US9589720B2 (en) | 2012-10-11 | 2017-03-07 | Fuji Electric Co., Ltd. | Signal transmission device and switching power supply |
JP2014096789A (ja) * | 2012-11-07 | 2014-05-22 | Semikron Elektronik Gmbh & Co Kg | 信号伝送回路を備える駆動回路及び動作方法 |
US10361632B2 (en) | 2012-11-14 | 2019-07-23 | Power Integrations, Inc. | Magnetically coupled galvanically isolated communication using lead frame |
US10224292B2 (en) | 2012-11-14 | 2019-03-05 | Power Integrations, Inc. | Noise cancellation for a magnetically coupled communication link utilizing a lead frame |
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US10079543B2 (en) | 2012-11-14 | 2018-09-18 | Power Intergrations, Inc. | Magnetically coupled galvanically isolated communication using lead frame |
JP2014135838A (ja) * | 2013-01-10 | 2014-07-24 | Fuji Electric Co Ltd | 電力変換装置の駆動信号絶縁回路及びそれを用いた電力変換装置 |
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JP2013239731A (ja) * | 2013-07-19 | 2013-11-28 | Renesas Electronics Corp | 半導体装置 |
JP2014239260A (ja) * | 2014-09-19 | 2014-12-18 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2017034265A (ja) * | 2016-09-15 | 2017-02-09 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2018064104A (ja) * | 2017-11-21 | 2018-04-19 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2021517771A (ja) * | 2018-03-27 | 2021-07-26 | マイクロ モーション インコーポレイテッド | 電気絶縁を含む電子機器 |
JP7382337B2 (ja) | 2018-03-27 | 2023-11-16 | マイクロ モーション インコーポレイテッド | 電気絶縁を含む電子機器 |
JP7429672B2 (ja) | 2019-03-08 | 2024-02-08 | ローム株式会社 | 絶縁通信部品およびモジュール |
JP2021042996A (ja) * | 2019-09-06 | 2021-03-18 | 株式会社東芝 | 電子回路、電流計測装置、および方法 |
JP7101152B2 (ja) | 2019-09-06 | 2022-07-14 | 株式会社東芝 | 電子回路、電流計測装置、および方法 |
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