JPS6460259A - Charge pump type booster circuit - Google Patents
Charge pump type booster circuitInfo
- Publication number
- JPS6460259A JPS6460259A JP21433687A JP21433687A JPS6460259A JP S6460259 A JPS6460259 A JP S6460259A JP 21433687 A JP21433687 A JP 21433687A JP 21433687 A JP21433687 A JP 21433687A JP S6460259 A JPS6460259 A JP S6460259A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- booster circuit
- diode
- charge pump
- pump type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To improve conversion efficiency, by making ON/OFF control of push-pull type switching transistors alternately through a timing circuit connected with an oscillation circuit. CONSTITUTION:An output stage constituting a booster circuit comprises first and second PNP, NPN switching transistors(Tr) 11, 12. A capacitor 13 is connected to the joint P between the first and second Tr 11, 12 and charged by a power source Vdd through a diode 14 while discharged through a diode 15. Voltage boosted through charge/discharge of the capacitor 13 is taken out through a capacitor 16 from an output terminal 17. At this time, base signals are fed from a timing circuit 18 to respective bases of the first and second Tr 11, 12 so as to carry out ON control alternately. Consequently, Tr 11, 12 can be driven efficiently.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21433687A JPS6460259A (en) | 1987-08-28 | 1987-08-28 | Charge pump type booster circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21433687A JPS6460259A (en) | 1987-08-28 | 1987-08-28 | Charge pump type booster circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6460259A true JPS6460259A (en) | 1989-03-07 |
Family
ID=16654073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21433687A Pending JPS6460259A (en) | 1987-08-28 | 1987-08-28 | Charge pump type booster circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6460259A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0438057A2 (en) * | 1990-01-16 | 1991-07-24 | Carroll Touch Incorporated | Infrared touch input device and light emitter activation circuit |
EP0685921A1 (en) * | 1994-05-31 | 1995-12-06 | STMicroelectronics S.r.l. | Capacitive charge pump, Bicmos circuit for low supply voltage |
KR100381489B1 (en) * | 2000-02-04 | 2003-04-26 | 산요 덴키 가부시키가이샤 | Charge pump circuit |
JP2008125269A (en) * | 2006-11-14 | 2008-05-29 | Mcm Japan Kk | Voltage step-up circuit and voltage step-down circuit |
JP2012182875A (en) * | 2011-02-28 | 2012-09-20 | Jfe Engineering Corp | Power supply circuit of explosion proof electronic apparatus |
CN103107701A (en) * | 2012-12-17 | 2013-05-15 | 上海斐讯数据通信技术有限公司 | Boosted circuit and implementation method |
JP2016127627A (en) * | 2014-12-26 | 2016-07-11 | Fdk株式会社 | Switching power source device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5780264A (en) * | 1980-11-07 | 1982-05-19 | Matsushita Electric Ind Co Ltd | Double voltage generating circuit |
-
1987
- 1987-08-28 JP JP21433687A patent/JPS6460259A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5780264A (en) * | 1980-11-07 | 1982-05-19 | Matsushita Electric Ind Co Ltd | Double voltage generating circuit |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0438057A2 (en) * | 1990-01-16 | 1991-07-24 | Carroll Touch Incorporated | Infrared touch input device and light emitter activation circuit |
EP0685921A1 (en) * | 1994-05-31 | 1995-12-06 | STMicroelectronics S.r.l. | Capacitive charge pump, Bicmos circuit for low supply voltage |
US5581455A (en) * | 1994-05-31 | 1996-12-03 | Sgs-Thomson Microelectronics, S.R.L. | Capacitive charge pump, BiCMOS circuit for low supply voltage and method therefor |
KR100381489B1 (en) * | 2000-02-04 | 2003-04-26 | 산요 덴키 가부시키가이샤 | Charge pump circuit |
JP2008125269A (en) * | 2006-11-14 | 2008-05-29 | Mcm Japan Kk | Voltage step-up circuit and voltage step-down circuit |
JP2012182875A (en) * | 2011-02-28 | 2012-09-20 | Jfe Engineering Corp | Power supply circuit of explosion proof electronic apparatus |
CN103107701A (en) * | 2012-12-17 | 2013-05-15 | 上海斐讯数据通信技术有限公司 | Boosted circuit and implementation method |
JP2016127627A (en) * | 2014-12-26 | 2016-07-11 | Fdk株式会社 | Switching power source device |
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