JPS56168246A - Power supply circuit - Google Patents
Power supply circuitInfo
- Publication number
- JPS56168246A JPS56168246A JP7013780A JP7013780A JPS56168246A JP S56168246 A JPS56168246 A JP S56168246A JP 7013780 A JP7013780 A JP 7013780A JP 7013780 A JP7013780 A JP 7013780A JP S56168246 A JPS56168246 A JP S56168246A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- source line
- line
- base
- transistor
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
PURPOSE:To reduce the power consumption of an auxiliary power source at the service interruption by inserting another transistor in series to the base circuit of a transistor interposed between a main power source line and a main element power source line, and turning off the latter TR at the time of service interruption. CONSTITUTION:When a main power source line 1 is above the normal voltage, forward bias voltage is applied to the base of a transistor (TR) 11 and the TR11 goes on. Hence, a TR8 goes on and the line 1 is connected to a memory element power source line 3. When power source is interrupted, the TRs 8, 11 go off to disconnect the line 1. An auxiliary power source line 7 is connected via a diode 4 to a memory element power source line 3. At this time, positive voltage is applied to the collector of the TR8, but since the base circuit of this TR is held closed by the TR11, the current flowing from the collector to the base is cut off virtually perfectly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7013780A JPS56168246A (en) | 1980-05-28 | 1980-05-28 | Power supply circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7013780A JPS56168246A (en) | 1980-05-28 | 1980-05-28 | Power supply circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56168246A true JPS56168246A (en) | 1981-12-24 |
Family
ID=13422873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7013780A Pending JPS56168246A (en) | 1980-05-28 | 1980-05-28 | Power supply circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56168246A (en) |
-
1980
- 1980-05-28 JP JP7013780A patent/JPS56168246A/en active Pending
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