JPS54100653A - Driving method for single-phase-bridge constant frequency pulse-width modulating power amplifier - Google Patents
Driving method for single-phase-bridge constant frequency pulse-width modulating power amplifierInfo
- Publication number
- JPS54100653A JPS54100653A JP696778A JP696778A JPS54100653A JP S54100653 A JPS54100653 A JP S54100653A JP 696778 A JP696778 A JP 696778A JP 696778 A JP696778 A JP 696778A JP S54100653 A JPS54100653 A JP S54100653A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- conductive
- zero
- unconductive
- input
- 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
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To eliminate noises and vibrations while a motor stops by reducing the capacity of a smoothing coil by making an AC component zero when an output is zero, by conducting an independent drive corresponding to the sign of an output voltage.
CONSTITUTION: Input (ei) applied is converted partially by polarity-inverting amplifier A into voltage (ei) of the reverse polarity, and (ei) and (ei') are compared by voltage comparator circuits C1 and C2 with a reference triangular wave and then inputted to transistor (Tr) driver circuits B1 to B4. Some of the comparison output is polarity-inverted by inverters I1 and I2. As for bridge-connected Trs T1 to T4, TrT1 is conductive and T2 is unconductive when input (ei) is larger than reference triangular wave (eT), and T2 is conductive and T1 is unconductive when (ei) is smaller than (eT); and T3 is conductive when (ei') is larger than (eT) and T4 is conductive and T3 is unconductive when (ei) is smaller than (eT). Therefore, output voltage (eO) becomes a pulse string of a positive voltage when input (ei) is positive, a pulse string of a negative voltage when (ei) is negative, and zero when (ei) is zero, so that the ripple of the output voltage will lessen.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP696778A JPS54100653A (en) | 1978-01-25 | 1978-01-25 | Driving method for single-phase-bridge constant frequency pulse-width modulating power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP696778A JPS54100653A (en) | 1978-01-25 | 1978-01-25 | Driving method for single-phase-bridge constant frequency pulse-width modulating power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54100653A true JPS54100653A (en) | 1979-08-08 |
Family
ID=11652965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP696778A Pending JPS54100653A (en) | 1978-01-25 | 1978-01-25 | Driving method for single-phase-bridge constant frequency pulse-width modulating power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54100653A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131253A (en) * | 1980-01-31 | 1981-10-14 | Western Electric Co | Signal circuit capable of connecting subscriber line of communication exchange system |
| JPH0511552U (en) * | 1991-07-17 | 1993-02-12 | 日本電気ホームエレクトロニクス株式会社 | Digital PWM conversion circuit |
-
1978
- 1978-01-25 JP JP696778A patent/JPS54100653A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131253A (en) * | 1980-01-31 | 1981-10-14 | Western Electric Co | Signal circuit capable of connecting subscriber line of communication exchange system |
| JPH0511552U (en) * | 1991-07-17 | 1993-02-12 | 日本電気ホームエレクトロニクス株式会社 | Digital PWM conversion circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59161739U (en) | electronic drive | |
| ATE183858T1 (en) | UNIVERSAL POWER CONVERTER WITH A SINGLE SPLIT POWER CONVERSION CIRCUIT | |
| JPS54100653A (en) | Driving method for single-phase-bridge constant frequency pulse-width modulating power amplifier | |
| JPS5743566A (en) | Dc-dc converter | |
| JPS5787604A (en) | Power supply circuit for amplifier | |
| JPH06245538A (en) | Direct current/alternate current power converter which prevents influence on output voltage by dead time, and its drive system | |
| JPS5797385A (en) | Controlling method for motor | |
| JPH01164266A (en) | Dc voltage conversion circuit | |
| JPS5793731A (en) | Logical level conversion circuit | |
| JPS5713985A (en) | Braking circuit for induction motor | |
| JPS57130127A (en) | Load driving circuit | |
| JPS5797384A (en) | Controlling method for motor | |
| JPS57122694A (en) | Speed controller for step motor | |
| JPS5776471A (en) | Electronic watch with speaker | |
| JPS57166735A (en) | Driving circuit | |
| JPS57132780A (en) | Starting method for induction motor by pulse width modulation type inverter | |
| JPS54111625A (en) | Inverter controller | |
| JPS56101380A (en) | Method of suppressing harmonic wave of inverter | |
| JPS60129802A (en) | Controlling circuit of pulse width modulation | |
| JPS54159834A (en) | Logic conversion circuit | |
| JPS5787218A (en) | Load driving circuit | |
| JPS5925995U (en) | Inverter control device | |
| JPS63269831A (en) | Digital-analog conversion device | |
| JPS6028498U (en) | Inverter device | |
| JPS54116619A (en) | Step motor driving control device |