JPS57111710A - Voltage dividing and dropping circuit - Google Patents
Voltage dividing and dropping circuitInfo
- Publication number
- JPS57111710A JPS57111710A JP18685980A JP18685980A JPS57111710A JP S57111710 A JPS57111710 A JP S57111710A JP 18685980 A JP18685980 A JP 18685980A JP 18685980 A JP18685980 A JP 18685980A JP S57111710 A JPS57111710 A JP S57111710A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- capacitor
- battery
- parallel
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
Abstract
PURPOSE:To extent the life of a small-sized electronic apparatus, by using a voltage dropping circuit, which is provided with a switch group for switching the connection between a main capacitor and a subcapacitor group, to enhance the conversion efficiency of the voltage dropping circuit and obtain an optional output voltage. CONSTITUTION:A voltage dropping circuit 3 consists of a main capacitor 4, subcapacitors 4a and 4b, and switches 5a-5d and 6a-6d which make the connection relation between the capacitor 4 and subcapacitors 4a and 4b parallel or series. An electronic circuit 2 provided with a switching pulse synthesizing circuit 8 and a battery 1 are connected to the circuit 3, and the voltage of the battery is detected by a voltage detecting circuit 9, and the high or low level is outputted in accordance with the voltage of the battery 1. Switches 5a-5d and 6a-6d are controlled through a logical operation circuit by the output from the circuit 9 to separate capacitors 4a and 4b partially from the circuit; and when capacitors 4a and 4b are connected in series to the capacitor 4, they are connected in parallel and are set to the charging state; and when they are connected in parallel to the capacitor 4, a voltage is supplied to a load 2.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18685980A JPS57111710A (en) | 1980-12-29 | 1980-12-29 | Voltage dividing and dropping circuit |
| US06/328,990 US4451743A (en) | 1980-12-29 | 1981-12-09 | DC-to-DC Voltage converter |
| GB8138453A GB2090483B (en) | 1980-12-29 | 1981-12-21 | Dc-to-dc voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18685980A JPS57111710A (en) | 1980-12-29 | 1980-12-29 | Voltage dividing and dropping circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57111710A true JPS57111710A (en) | 1982-07-12 |
Family
ID=16195897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18685980A Pending JPS57111710A (en) | 1980-12-29 | 1980-12-29 | Voltage dividing and dropping circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57111710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960469A1 (en) * | 1997-02-11 | 1999-12-01 | The Foxboro Company | Charged pump for dividing input voltage and multiplying output current |
-
1980
- 1980-12-29 JP JP18685980A patent/JPS57111710A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960469A1 (en) * | 1997-02-11 | 1999-12-01 | The Foxboro Company | Charged pump for dividing input voltage and multiplying output current |
| EP0960469A4 (en) * | 1997-02-11 | 2000-09-27 | Foxboro Co | Charged pump for dividing input voltage and multiplying output current |
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