JPS5545115A - Load driver circuit - Google Patents
Load driver circuitInfo
- Publication number
- JPS5545115A JPS5545115A JP11711878A JP11711878A JPS5545115A JP S5545115 A JPS5545115 A JP S5545115A JP 11711878 A JP11711878 A JP 11711878A JP 11711878 A JP11711878 A JP 11711878A JP S5545115 A JPS5545115 A JP S5545115A
- Authority
- JP
- Japan
- Prior art keywords
- discharge line
- switch
- stage
- state
- time
- 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.)
- Granted
Links
Abstract
PURPOSE: To enable a single circuit constitution to perform real-time and delay time switch driving operations by providing 1stW3rd switching states where a discharge line is activated at the 1st stage, a reference voltage is applied across a comparing method at the 2nd stage and the discharge line is cut off at the 3rd stage.
CONSTITUTION: Switch circuit 4 with three switching states is activated with discharge line 5 grounded via S2 when traveling contact (c) of switch S2 is changed over to fixed contact (b) in the 1st state. In the 2nd state, traveling contact (c) of S1 connected to fixed contact (a) of switch S2 is switched to fixed contact (b) so as to ground one terminal of a series connection circuit of resistances R5 and R6 for activation, thereby applying divided voltage Vc to the base of transistor Q2. In the 3rd state, discharge line 5 is unactivated and the generation of reference voltage Vc is also prevented. Consequently, both real-time and delay-time switch driving operations can be done by a single circuit constitution.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53117118A JPS6019055B2 (en) | 1978-09-22 | 1978-09-22 | load drive circuit |
US06/077,066 US4321515A (en) | 1978-09-22 | 1979-09-19 | Tape recorder control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53117118A JPS6019055B2 (en) | 1978-09-22 | 1978-09-22 | load drive circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5545115A true JPS5545115A (en) | 1980-03-29 |
JPS6019055B2 JPS6019055B2 (en) | 1985-05-14 |
Family
ID=14703863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53117118A Expired JPS6019055B2 (en) | 1978-09-22 | 1978-09-22 | load drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6019055B2 (en) |
-
1978
- 1978-09-22 JP JP53117118A patent/JPS6019055B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6019055B2 (en) | 1985-05-14 |
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