JPS54152955A - Driver circuit - Google Patents
Driver circuitInfo
- Publication number
- JPS54152955A JPS54152955A JP6110678A JP6110678A JPS54152955A JP S54152955 A JPS54152955 A JP S54152955A JP 6110678 A JP6110678 A JP 6110678A JP 6110678 A JP6110678 A JP 6110678A JP S54152955 A JPS54152955 A JP S54152955A
- Authority
- JP
- Japan
- Prior art keywords
- load
- discharge
- cut
- power consumption
- charge
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/01—Modifications for accelerating switching
- H03K19/013—Modifications for accelerating switching in bipolar transistor circuits
- H03K19/0136—Modifications for accelerating switching in bipolar transistor circuits by means of a pull-up or down element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0008—Arrangements for reducing power consumption
- H03K19/001—Arrangements for reducing power consumption in bipolar transistor circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Logic Circuits (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To reduce greatly power consumption in a stationary state and to charge and discharge a large capacitive load at a high speed by adding a generating circuit for a transient charge-discharge current which shorten the charge-discharge time of the load. CONSTITUTION:Once transistor Tr100 is applied with an input signal low in logic level, Tr100 is cut off and Tr 102 and 104 are in conduction to start charging from the output terminal to the load. However, since resistance 130 has an extremely high value bacause of low power consumption, generating a transient current from Tr 108 via resistances 136 and 138 increases the base current of Tr 102 momentarily, allowing charging the load to end in a short time. On the other hand, terminal N1 becomes high in level and when Tr 100 starts conducting, Tr 108 is cut off, so that large currents will flow to the base of Tr 106 via Trs 108 and 100. As a result, Tr 106 discharges the load capacity suddenly. After the discharge, the input of terminal N2 is made low in logic level to cut off Tr 108, so that the power consumption can be suppressed low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6110678A JPS54152955A (en) | 1978-05-24 | 1978-05-24 | Driver circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6110678A JPS54152955A (en) | 1978-05-24 | 1978-05-24 | Driver circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54152955A true JPS54152955A (en) | 1979-12-01 |
Family
ID=13161484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6110678A Pending JPS54152955A (en) | 1978-05-24 | 1978-05-24 | Driver circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54152955A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6378615A (en) * | 1986-09-22 | 1988-04-08 | Mitsubishi Electric Corp | Driving circuit for light emitting element |
| US4737665A (en) * | 1985-01-15 | 1988-04-12 | Texas Instruments Incorporated | Adjustable speed up circuit for TTL-type gates |
| JPS6388915A (en) * | 1986-10-02 | 1988-04-20 | Mitsubishi Electric Corp | Light emitting element driving circuit |
-
1978
- 1978-05-24 JP JP6110678A patent/JPS54152955A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737665A (en) * | 1985-01-15 | 1988-04-12 | Texas Instruments Incorporated | Adjustable speed up circuit for TTL-type gates |
| JPS6378615A (en) * | 1986-09-22 | 1988-04-08 | Mitsubishi Electric Corp | Driving circuit for light emitting element |
| JPS6388915A (en) * | 1986-10-02 | 1988-04-20 | Mitsubishi Electric Corp | Light emitting element driving circuit |
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