JP2003224979A5 - - Google Patents

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Publication number
JP2003224979A5
JP2003224979A5 JP2002345672A JP2002345672A JP2003224979A5 JP 2003224979 A5 JP2003224979 A5 JP 2003224979A5 JP 2002345672 A JP2002345672 A JP 2002345672A JP 2002345672 A JP2002345672 A JP 2002345672A JP 2003224979 A5 JP2003224979 A5 JP 2003224979A5
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Japan
Prior art keywords
diode
bypass switch
control unit
power generation
power
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JP2002345672A
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Japanese (ja)
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JP3903911B2 (en
JP2003224979A (en
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Priority to JP2002345672A priority Critical patent/JP3903911B2/en
Priority claimed from JP2002345672A external-priority patent/JP3903911B2/en
Publication of JP2003224979A publication Critical patent/JP2003224979A/en
Publication of JP2003224979A5 publication Critical patent/JP2003224979A5/ja
Application granted granted Critical
Publication of JP3903911B2 publication Critical patent/JP3903911B2/en
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Claims (9)

携帯型電子機器に内蔵可能な電力供給装置であって、発電装置と、この発電装置からの電力を少なくとも１つの１方向性ユニットを介して充電装置または処理装置に供給する供給部とを有し、
前記１方向性ユニットは、ダイオードと、このダイオードに並列に接続されたバイパススイッチと、前記ダイオードの入力端と出力端の電圧を比較することにより前記ダイオードの順方向電圧を検出し、その検出結果に応じて前記バイパススイッチをオンする制御部とを備え、
前記制御部は、前記ダイオードの順方向電圧を定期的にサンプリング検出し、前記前記バイパススイッチがオフのとき前記ダイオードの順方向電圧が検出されたならば前記バイパススイッチをオンすることを特徴とする電力供給装置。A power supply device that can be built in a portable electronic device, and includes a power generation device and a supply unit that supplies power from the power generation device to a charging device or a processing device via at least one unidirectional unit. ,
The unidirectional unit detects a forward voltage of the diode by comparing a voltage of a diode, a bypass switch connected in parallel to the diode, and an input terminal and an output terminal of the diode, and the detection result And a control unit for turning on the bypass switch according to
The control unit periodically detects and detects a forward voltage of the diode, and turns on the bypass switch if the forward voltage of the diode is detected when the bypass switch is off. Power supply device. 請求項１において、前記制御部は、前記バイパススイッチがオンのときに前記ダイオードの順方向電圧が検出されなければ前記バイパススイッチをオフさせることを特徴とする。  The control unit according to claim 1, wherein the control unit turns off the bypass switch when a forward voltage of the diode is not detected when the bypass switch is on. 請求項１または２において、前記制御部は前記バイパススイッチをオンさせた後、前記ダイオードの順方向電圧が検出されていれば、所定時間経過後に前記バイパススイッチをオフさせることを特徴とする。  3. The control unit according to claim 1, wherein the control unit turns off the bypass switch after a predetermined time has elapsed if a forward voltage of the diode is detected after the bypass switch is turned on. 請求項１ないし3のいずれかにおいて、バイパススイッチは電界効果型トランジスタであり、前記ダイオードは前記トランジスタの寄生ダイオードであることを特徴とする。  4. The method according to claim 1, wherein the bypass switch is a field effect transistor, and the diode is a parasitic diode of the transistor. 請求項１ないし4のいずれかにおいて、前記制御部は前記ダイオードの両端の電圧を比較するコンパレータを備えていることを特徴とする。  5. The control unit according to claim 1, wherein the control unit includes a comparator that compares voltages across the diode. 請求項１ないし５のいずれかにおいて、前記発電装置は直流電力を発生し、前記供給部は前期１方向性ユニットを用いて、充電装置または処理装置から前記発電装置への電流の逆流を防止することを特徴とする。  6. The power generation device according to claim 1, wherein the power generation device generates DC power, and the supply unit uses a unidirectional unit in the previous period to prevent a backflow of current from the charging device or the processing device to the power generation device. It is characterized by that. 請求項6において、前記発電装置は光エネルギーを電気エネルギーに変換するソーラー発電装置であることを特徴とする。  The power generation device according to claim 6 is a solar power generation device that converts light energy into electric energy. 請求項１ないし7のいずれかに記載の電力供給装置と、前記電力供給装置から供給された電力によって動作する処理装置とを有していることを特徴とする携帯型電子機器。  8. A portable electronic device comprising: the power supply device according to claim 1; and a processing device that operates with the power supplied from the power supply device. 請求項１ないし7のいずれかに記載の電力供給装置と、前記電力供給装置から供給された電力によって動作する計時装置とを有していることを特徴とする電子時計。  8. An electronic timepiece comprising: the power supply device according to claim 1; and a timing device that operates with the power supplied from the power supply device.
JP2002345672A 1996-11-13 2002-11-28 Power supply device and portable electronic device Expired - Lifetime JP3903911B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002345672A JP3903911B2 (en) 1996-11-13 2002-11-28 Power supply device and portable electronic device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8-302209 1996-11-13
JP30220996 1996-11-13
JP2002345672A JP3903911B2 (en) 1996-11-13 2002-11-28 Power supply device and portable electronic device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP51638998A Division JP3632209B2 (en) 1996-11-13 1997-11-11 Power supply device and portable electronic device

Publications (3)

Publication Number Publication Date
JP2003224979A JP2003224979A (en) 2003-08-08
JP2003224979A5 true JP2003224979A5 (en) 2005-07-14
JP3903911B2 JP3903911B2 (en) 2007-04-11

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ID=27758976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002345672A Expired - Lifetime JP3903911B2 (en) 1996-11-13 2002-11-28 Power supply device and portable electronic device

Country Status (1)

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JP (1) JP3903911B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8134851B2 (en) 2003-11-04 2012-03-13 International Rectifier Corporation Secondary side synchronous rectifier for resonant converter
US7408796B2 (en) 2003-11-04 2008-08-05 International Rectifier Corporation Integrated synchronous rectifier package
JP5282502B2 (en) * 2008-09-18 2013-09-04 セイコーエプソン株式会社 Rectification control device, full-wave rectification circuit, power receiving device, electronic device and non-contact power transmission system
JP2013165565A (en) * 2012-02-10 2013-08-22 Shindengen Electric Mfg Co Ltd Synchronous rectification type bridge
JP6148551B2 (en) * 2013-06-26 2017-06-14 株式会社東芝 Rectifier
JP2015119614A (en) * 2013-11-15 2015-06-25 株式会社リコー Power storage state adjustment circuit, power storage state adjustment apparatus, and battery pack

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