JPS57119682A - Power amplifier - Google Patents
Power amplifierInfo
- Publication number
- JPS57119682A JPS57119682A JP56003041A JP304181A JPS57119682A JP S57119682 A JPS57119682 A JP S57119682A JP 56003041 A JP56003041 A JP 56003041A JP 304181 A JP304181 A JP 304181A JP S57119682 A JPS57119682 A JP S57119682A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- current
- transistors
- load
- protective
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To prevent a short-circuit current which does not pass through a load by providing a power amplifier supplying a positive and negative bipolar current to a load from a unit power source with protective circuits turning off the other transistor when one transistor is turned on. CONSTITUTION:When a positive and negative bipolar current is supplied to a load M by operating four transistors Q1-Q4 by using a unit power source, a protective circuit consisting of a diode D2, a transistor Q6, and a resistor R2 is put in between the transistors, Q1 and Q2 and a protective circuit with the same composition is also provided between the transistors, Q3 and Q4 and a load M is connected across both the protective circuits. Therefore, reverse bias is applied to the transistor Q6 in the protective circuit when the transistor Q1 is on condition to flow no current to the transistor Q2. In the same way, no current is flowed into the Q4 when the Q3 is on condition and the generation of a short- circuit current can positively be prevented by simultaneously turning on the transistors.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56003041A JPS57119682A (en) | 1981-01-14 | 1981-01-14 | Power amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56003041A JPS57119682A (en) | 1981-01-14 | 1981-01-14 | Power amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57119682A true JPS57119682A (en) | 1982-07-26 |
Family
ID=11546219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56003041A Pending JPS57119682A (en) | 1981-01-14 | 1981-01-14 | Power amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57119682A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924397A (en) * | 1986-12-08 | 1990-05-08 | Honda Giken Kogyo K.K. | Vehicle cruise control system |
-
1981
- 1981-01-14 JP JP56003041A patent/JPS57119682A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924397A (en) * | 1986-12-08 | 1990-05-08 | Honda Giken Kogyo K.K. | Vehicle cruise control system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5480655A (en) | Protection circuit | |
JPS57119682A (en) | Power amplifier | |
JPS5717226A (en) | Integrated circuit | |
SU1059640A1 (en) | Redundant power supply unit | |
JPS57125525A (en) | Logical circuit | |
JPS566534A (en) | Level converting circuit | |
JPS54116652A (en) | Logical circuit provided with output protective circuit | |
JPS5461487A (en) | Malfunction preventing circuit | |
JPS5735421A (en) | Malfunction preventing circuit at power supply application | |
JPS5593320A (en) | Switching unit | |
JPS54111650A (en) | Overcurrent detection circuit | |
JPS5744336A (en) | Logical circuit | |
JPS56729A (en) | Electric power amplifying circuit | |
JPS57188134A (en) | Ac two-wire type contactless switch | |
JPS57180224A (en) | Flip-flop circuit | |
JPS5570999A (en) | Switching circuit for power supply of memory | |
JPS57183276A (en) | Base driving circuit for main circuit transistor in transistor inverter | |
JPS57144774A (en) | Heat generating/recording elements driving circuit | |
JPS56168246A (en) | Power supply circuit | |
JPS57151264A (en) | Gate circuit for gate turn-off thyristor | |
JPS5686079A (en) | Inverter circuit | |
JPS54147449A (en) | Protective circuit | |
JPS5574614A (en) | Short circuit protection circuit for constant voltage power supply | |
JPS5513605A (en) | Voltage control circuit for pulse width modulation power soruce | |
JPS5448030A (en) | Vercurrent protection circuit for swtching regulator |