JPS6412857A - Semiconductor high voltage pump circuit device - Google Patents
Semiconductor high voltage pump circuit deviceInfo
- Publication number
- JPS6412857A JPS6412857A JP16488187A JP16488187A JPS6412857A JP S6412857 A JPS6412857 A JP S6412857A JP 16488187 A JP16488187 A JP 16488187A JP 16488187 A JP16488187 A JP 16488187A JP S6412857 A JPS6412857 A JP S6412857A
- Authority
- JP
- Japan
- Prior art keywords
- high voltage
- clock
- voltage pump
- output terminal
- input terminal
- 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
Landscapes
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To prevent an overcurrent by detecting a load current and controlling the clock of high voltage pump means. CONSTITUTION:The input terminal 11 of high voltage pump means 1 is connected to a high voltage source 4, a high voltage output terminal 12 is connected to one of detection terminals of current detecting means 2. The other one of the current detection terminals is connected to a load, and the input terminal of clock control means 3 is connected to the detection output terminal. A clock generator is connected to the means 3, and the clock input terminal of the means 1 is connected to the output terminal. Thus, the state that a load current abnormally increases is detected by the means 2, so controlled by the means 3 that a clock waveform becomes zero to be input to the means 1, thereby operating to reduce the transfer efficiency of the high voltage. As a result, it can prevent the output voltage of the source 4 from decreasing in case of an abnormal load impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16488187A JPS6412857A (en) | 1987-07-01 | 1987-07-01 | Semiconductor high voltage pump circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16488187A JPS6412857A (en) | 1987-07-01 | 1987-07-01 | Semiconductor high voltage pump circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412857A true JPS6412857A (en) | 1989-01-17 |
Family
ID=15801677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16488187A Pending JPS6412857A (en) | 1987-07-01 | 1987-07-01 | Semiconductor high voltage pump circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412857A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439263A (en) * | 1987-08-03 | 1989-02-09 | Sharp Kk | Output voltage stabilization in booster circuit |
| JP2002325431A (en) * | 2001-04-24 | 2002-11-08 | Oki Electric Ind Co Ltd | Power supply unit |
| JP2003528560A (en) * | 2000-03-22 | 2003-09-24 | ザ ボード オブ トラスティーズ オブ ザ ユニバーシティ オブ イリノイ | Dynamically controlled and uniquely regulated charge pump power converter |
| JP2006031672A (en) * | 2004-06-14 | 2006-02-02 | Rohm Co Ltd | Power supply apparatus and electronic equipment |
| KR100917509B1 (en) * | 2003-07-08 | 2009-09-16 | 세이코 인스트루 가부시키가이샤 | Semiconductor integrated circuit device |
-
1987
- 1987-07-01 JP JP16488187A patent/JPS6412857A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439263A (en) * | 1987-08-03 | 1989-02-09 | Sharp Kk | Output voltage stabilization in booster circuit |
| JP2003528560A (en) * | 2000-03-22 | 2003-09-24 | ザ ボード オブ トラスティーズ オブ ザ ユニバーシティ オブ イリノイ | Dynamically controlled and uniquely regulated charge pump power converter |
| JP2002325431A (en) * | 2001-04-24 | 2002-11-08 | Oki Electric Ind Co Ltd | Power supply unit |
| KR100917509B1 (en) * | 2003-07-08 | 2009-09-16 | 세이코 인스트루 가부시키가이샤 | Semiconductor integrated circuit device |
| JP2006031672A (en) * | 2004-06-14 | 2006-02-02 | Rohm Co Ltd | Power supply apparatus and electronic equipment |
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