JPH01113421U - - Google Patents
Info
- Publication number
- JPH01113421U JPH01113421U JP807888U JP807888U JPH01113421U JP H01113421 U JPH01113421 U JP H01113421U JP 807888 U JP807888 U JP 807888U JP 807888 U JP807888 U JP 807888U JP H01113421 U JPH01113421 U JP H01113421U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- transistor
- power
- waveform
- power supply
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Electronic Switches (AREA)
Description
第１図は本考案の一実施例によるトランジスタ
の過電圧保護回路の構成を示す回路図、第２図は
出力トランジスタがスイツチングしている時のコ
レクタ―エミツタ電圧波形を示す図でイは電圧ス
イツチング動作、ロは電流スイツチング動作時の
波形を示し、第３図は第２図イの信号を波形処理
していく過程途中の波形図で、イは第１図中抵抗
Ｒ２の両端電圧、ロは第１図中の抵抗Ｒ４の両端
電圧、ハは第１図中の抵抗Ｒ６の両端電圧の波形
を示す。
１……供給電源、２……負荷、３１，３２……
波形処理回路、４１，４２……制御回路、Ｑ１，
Ｑ２……出力トランジスタ、Ｃ１，Ｃ２……結合
コンデンサ、Ｔ１，Ｔ２……パルストランス、Ｒ
１〜Ｒ７……抵抗、Ｃ３〜Ｃ５……コンデンサ、
Ｄ１，Ｄ２……ダイオード、ＳＲ１……サイリス
タ、Ｑ３……リレー駆動用トランジスタ、ＲＬ１
……リレー、ｒｌ１……リレーの接点。
Fig. 1 is a circuit diagram showing the configuration of a transistor overvoltage protection circuit according to an embodiment of the present invention, Fig. 2 is a diagram showing the collector-emitter voltage waveform when the output transistor is switching, and A is a voltage switching operation. , B shows the waveforms during current switching operation, and FIG. 3 shows the waveforms during the process of waveform processing of the signal in FIG. 2 A. A shows the voltage across the resistor R2 in FIG. The voltage across the resistor R4 in FIG. 1, C indicates the waveform of the voltage across the resistor R6 in FIG. 1...Power supply, 2...Load, 31, 32...
Waveform processing circuit, 41, 42...control circuit, Q1,
Q2...Output transistor, C1, C2...Coupling capacitor, T1, T2...Pulse transformer, R
1-R7...Resistor, C3-C5...Capacitor,
D1, D2...Diode, SR1...Thyristor, Q3...Relay drive transistor, RL1
...Relay, rl1...Relay contact.
Claims (1)
ス入力信号を電力増幅し、負荷にパルス電力を供
給するトランジスタを有する電力スイツチング増
幅回路において、前記トランジスタのコレクタ・
エミツタ間に結合コンデンサを介して接続された
パルストランスと、該パルストランスの出力信号
の波形処理を行なう波形処理手段と、該波形処理
手段の結果によつて前記供給電源の電圧を制御す
る制御手段とを有するトランジスタの過電圧保護
回路。 A power switching amplifier circuit having a transistor connected to a power supply, power amplifying a pulse input signal from a pulse oscillator, and supplying pulse power to a load, wherein a collector of the transistor is
A pulse transformer connected between the emitters via a coupling capacitor, a waveform processing means for processing the waveform of the output signal of the pulse transformer, and a control means for controlling the voltage of the power supply according to the result of the waveform processing means. A transistor overvoltage protection circuit having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP807888U JPH01113421U (en) | 1988-01-27 | 1988-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP807888U JPH01113421U (en) | 1988-01-27 | 1988-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01113421U true JPH01113421U (en) | 1989-07-31 |
Family
ID=31213636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP807888U Pending JPH01113421U (en) | 1988-01-27 | 1988-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01113421U (en) |
-
1988
- 1988-01-27 JP JP807888U patent/JPH01113421U/ja active Pending