CN100546163C - 用于感应输送电能的电路布置 - Google Patents
用于感应输送电能的电路布置 Download PDFInfo
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- CN100546163C CN100546163C CNB2004800227467A CN200480022746A CN100546163C CN 100546163 C CN100546163 C CN 100546163C CN B2004800227467 A CNB2004800227467 A CN B2004800227467A CN 200480022746 A CN200480022746 A CN 200480022746A CN 100546163 C CN100546163 C CN 100546163C
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 7
- 230000001939 inductive effect Effects 0.000 title claims abstract description 7
- 239000004065 semiconductor Substances 0.000 claims abstract description 25
- 230000000295 complement effect Effects 0.000 claims abstract description 15
- 230000010355 oscillation Effects 0.000 claims abstract 2
- 239000003990 capacitor Substances 0.000 description 10
- 230000005669 field effect Effects 0.000 description 9
- 239000005537 C09CA07 - Telmisartan Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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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
- H02M7/538—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 in a push-pull configuration
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
- H03K17/6872—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor using complementary field-effect transistors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
本发明涉及感应输送电能的电路布置,带有:振荡电路(Lpr,Cpr);带有带互补开关晶体管(T2,T4)的推挽式电路,可通过该推挽式电路激励振荡电路;供互补开关晶体管用的触发电路,该触发电路具有控制晶体管(T1,T3)和频率发生器(F),该频率发生器的输出信号被输送给控制晶体管。
Description
技术领域
本发明涉及用于感应输送电能的电路布置,例如用于向小电器供电和/或对蓄电池感应充电的电路布置。
背景技术
从DE 38 42 465 A1中已知一种用于直流变压器的开关控制器,其具有一个电子开关,和一个串联振荡电路而不是电源滤波扼流圈。如果电子开关在电流过零时接通,则开关控制器以串联振荡电路的谐振频率振荡,并具有特别高的效率。电子开关由两个互补的开关晶体管实现,这两个开关晶体管必须反相触发。通过未进一步示出的开关晶体管用的反馈电路和输入级触发开关晶体管。
从DE 40 15 455 A1中已知一种逆变器用的触发电路,其具有带互补晶体管的推挽式输出级。通过两个直流耦合的、相互电位偏移的控制信号触发晶体管。通过运行时间电路使控制信号的上升沿和下降沿偏移,使得在仍然断开的晶体管接通之前,目前接通的晶体管断开。因此,总体上触发电路比较昂贵。
发明内容
本发明的任务是提供一种用于感应输送电能的电路布置,其效率高,同时电路技术费用低。
根据本发明,通过一种电路布置解决该任务,所述电路布置具有下面的特征:振荡电路,带有互补开关晶体管的推挽式电路,振荡电路可由该推挽式电路激励,供互补开关晶体管用的触发电路,该触发电路优选地同样具有互补的控制晶体管,和频率发生器,该频率发生器的输出信号可输送给控制晶体管。
根据本发明的电路布置特别简单,因为两个控制晶体管可由同一触发信号控制。为避免在触发情况下,两个开关晶体管同时接通和电压源瞬间短路,设置了RC元件,使得在仍然断开的开关晶体管接通之前,当前接通的开关晶体管首先已经断开。此外,为减少开关晶体管中的功率损耗,有利的是用矩形信号控制开关晶体管,即频率发生器提供矩形输出信号。进一步,为使电路布置具有高效率,有利的是将振荡电路大致调谐至频率发生器的频率。
在根据本发明的电路布置的优选设计方案情况下,开关晶体管的触发电路除了互补控制晶体管外,还具有一个电阻和两个电容。电阻连接开关晶体管的控制端子,第二电容与第二控制晶体管并联布置,第二电容与第二控制晶体管的主电流段并联布置,其中第一电容与电阻的第一端连接,第二电容与电阻的第二端连接。以这种简单的方式得到了RC元件,使得一个开关晶体管的断开比另一个开关晶体管的接通更快。
振荡电路具有电感和电容。电感可例如通过线圈实现,线圈可以是变压器的初级线圈。次级线圈可以提供电能。根据本发明的电路布置可以例如用于向包含次级线圈的小电器供应电能,最好是向还可包括蓄电池的电动牙刷或电动剃须刀供应电能。
附图说明
下面借助在唯一的附图中示出的根据本发明用于感应输送电能的电路布置的实施例来解释本发明。在说明书中描述了另外的设计方案。
具体实施方式
图中示出的根据本发明电路布置包括作为开关晶体管的两个互补场效应晶体管T2,T4,它们的漏极端子相互连接并与串联振荡电路的一端连接,其中所述串联振荡电路由电感Lpr和电容Cpr组成。串联振荡电路的另一端和n沟道场效应晶体管T4的源极端子接地。p沟道场效应晶体管T2的源极端子与电压源U1的正极连接。电压源U1的负极接地。电路布置包括两个另外的互补场效应晶体管T1,T3作为控制晶体管,它们的栅极端子与频率发生器F的输出直接连接,所述频率发生器产生参照地电位的输出信号。开关晶体管T2,T4的栅极端子通过电阻R1连接。电阻R1的一端与p沟道效应晶体管T1的漏极端子连接,以及通过第一电容器C1与电压源U1的正极连接。电阻R1的另一端与n沟道场效应晶体管T3的漏极端子连接,以及通过第二电容器C2接地。p沟道场效应晶体管T1的源极端子与电压源U1的正极连接。电压源U1的负极与n沟道场效应晶体管T3的源极端子连接。
在根据本发明电路布置的另一个设计情况下,互补场效应晶体管T2,T4和/或互补场效应晶体管T1,T2由互补双极晶体管代替。
在根据本发明电路布置的另一个设计情况下,电压源和晶体管的极性掉换。
在根据本发明电路布置的上述设计的另一个变型情况下,没有电容器C1和C2,即这两个电容器的功能由晶体管T2,T4的栅极-源极电容或基极-发射极电容承担。
下面简短描述图中所示电路布置的工作方式。作为推挽级连接的开关晶体管T2,T4将串联振荡电路交替地与工作电压或地连接,其中推挽级由控制晶体管T1,T3矩形触发。为避免同时向开关晶体管T2,T4输送高的漏极电流,设置了电容器C1,C2和电阻R1。当例如频率发生器F的输出信号为正时,即大约为工作电压,则控制晶体管T3导电,控制晶体管T1不导电。所以,开关晶体管T2导电,并且开关晶体管T4不导电。如果频率发生器F的输出信号转换成地电位,即参考电位,则控制晶体管T1和开关晶体管T4导电,与此相反,控制晶体管T3和开关晶体管T2不导电。在此开关晶体管T2的栅源电压以时间常数R’C’下降,其中R’表示现在导电的控制晶体管T1的体电阻,C’表示电容器C1的电容和开关晶体管T2的输入电容之和。同时,开关晶体管T4的栅源电压以时间常数R”C”上升,其中R”表示电阻R1的电阻和现在导电的控制晶体管T1的体电阻之和,C”表示电容器C2的电容和开关晶体管T4的输入电容之和。如果设想C’基本上和C”一样大,则R’C’比R”C”小得多,因为电阻R’比电阻R”小得多,即开关晶体管T2的断开比开关晶体管T4的接通更快。如果电容器C1,C2,开关晶体管T2,T4的输入电容以及控制晶体管T1,T3的体电阻一样大,则一个开关晶体管的断开始终比另一个开关晶体管的接通更快。断开和接通之间的延迟时间可以通过相应地选择电容器C1,C2和电阻R1的参数来与开关晶体管T2,T4的开关时间和延迟时间相匹配。
Claims (7)
1.用于感应输送电能的电路布置,带有:振荡电路(Lpr,Cpr);具有互补开关晶体管(T2,T4)的推挽式电路,可通过该推挽式电路激励振荡电路;用于互补开关晶体管的触发电路,该触发电路具有第一控制晶体管(T1)和第二控制晶体管(T3);和频率发生器(F),该频率发生器的输出信号可输送给第一控制晶体管(T1)和第二控制晶体管(T3),其中,第一电容(C1)与第一控制晶体管(T1)的主电流通路并联,第二电容(C2)与第二控制晶体管(T3)的主电流通路并联,第一电容(C1)与电阻(R1)的第一端连接,第二电容(C2)与电阻(R1)的第二端连接。
2.根据权利要求1的电路布置,其中,振荡电路(Lpr,Cpr)被大致调谐至频率发生器的频率。
3.根据权利要求1或2的电路布置,其中,频率发生器(F)的输出信号是矩形的。
4.根据权利要求1的电路布置,其中,频率发生器(F)的输出信号可输送给第一控制晶体管(T1)和第二控制晶体管(T3)的控制端子。
5.根据权利要求4的电路布置,其中,开关晶体管(T2,T4)的控制端子通过电阻(R1)连接。
6.根据权利要求1的电路布置,其中,开关晶体管(T2,T4)的主电流通路串联连接,供电电压源(U1)与它们并联。
7.根据权利要求1的电路布置,其中,第一电容(C1)和电阻(R1)和第二电容(C2)串联连接,供电电压源(U1)与它们并联。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10336435.8 | 2003-08-08 | ||
DE10336435A DE10336435A1 (de) | 2003-08-08 | 2003-08-08 | Schaltungsanordnung zum induktiven Übertragen elektrischer Energie |
Publications (2)
Publication Number | Publication Date |
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CN1833350A CN1833350A (zh) | 2006-09-13 |
CN100546163C true CN100546163C (zh) | 2009-09-30 |
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Application Number | Title | Priority Date | Filing Date |
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CNB2004800227467A Expired - Fee Related CN100546163C (zh) | 2003-08-08 | 2004-07-13 | 用于感应输送电能的电路布置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7397679B2 (zh) |
EP (1) | EP1652288A1 (zh) |
JP (1) | JP4739203B2 (zh) |
CN (1) | CN100546163C (zh) |
DE (1) | DE10336435A1 (zh) |
HK (1) | HK1091040A1 (zh) |
WO (1) | WO2005018079A1 (zh) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1438457A1 (de) * | 1961-11-09 | 1968-10-17 | Itt Ind Gmbh Deutsche | Frequenzkonstanter Gegentakt-Spannungswandler |
US3962626A (en) * | 1974-11-26 | 1976-06-08 | Hughes Aircraft Company | Current driven inverter |
US4286316A (en) * | 1980-02-19 | 1981-08-25 | Xerox Corporation | High voltage sine wave power supply |
US4614897A (en) * | 1984-05-11 | 1986-09-30 | Rca Corporation | Switching circuit |
DE3842465A1 (de) * | 1988-12-16 | 1990-06-28 | Flachenecker Gerhard | Schaltregler zur gleichspannungswandlung |
DE4015455A1 (de) * | 1990-05-14 | 1991-11-21 | Zumtobel Ag | Ansteuerschaltungsanordnung fuer einen wechselrichter und verfahren zur ansteuerung eines leistungs-schalterelementes |
US5095224A (en) * | 1990-08-31 | 1992-03-10 | Siemens-Pacesetter, Inc. | Interrupted resonance energy transfer system |
WO1998019020A1 (fr) * | 1996-10-30 | 1998-05-07 | Masako Omoto | W.c. et dispositif pour lit d'hopital dote de ce w.c. |
US6047214A (en) * | 1998-06-09 | 2000-04-04 | North Carolina State University | System and method for powering, controlling, and communicating with multiple inductively-powered devices |
US6218788B1 (en) | 1999-08-20 | 2001-04-17 | General Electric Company | Floating IC driven dimming ballast |
-
2003
- 2003-08-08 DE DE10336435A patent/DE10336435A1/de not_active Withdrawn
-
2004
- 2004-07-13 JP JP2006522252A patent/JP4739203B2/ja not_active Expired - Fee Related
- 2004-07-13 EP EP04763179A patent/EP1652288A1/de not_active Withdrawn
- 2004-07-13 US US10/566,687 patent/US7397679B2/en not_active Expired - Fee Related
- 2004-07-13 WO PCT/EP2004/007695 patent/WO2005018079A1/de active Application Filing
- 2004-07-13 CN CNB2004800227467A patent/CN100546163C/zh not_active Expired - Fee Related
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2006
- 2006-10-19 HK HK06111544.2A patent/HK1091040A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1652288A1 (de) | 2006-05-03 |
US7397679B2 (en) | 2008-07-08 |
JP4739203B2 (ja) | 2011-08-03 |
JP2007502094A (ja) | 2007-02-01 |
HK1091040A1 (en) | 2007-01-05 |
CN1833350A (zh) | 2006-09-13 |
WO2005018079A1 (de) | 2005-02-24 |
US20060214741A1 (en) | 2006-09-28 |
DE10336435A1 (de) | 2005-03-03 |
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