JP2006081647A5 - - Google Patents
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- Publication number
- JP2006081647A5 JP2006081647A5 JP2004268001A JP2004268001A JP2006081647A5 JP 2006081647 A5 JP2006081647 A5 JP 2006081647A5 JP 2004268001 A JP2004268001 A JP 2004268001A JP 2004268001 A JP2004268001 A JP 2004268001A JP 2006081647 A5 JP2006081647 A5 JP 2006081647A5
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- JP
- Japan
- Prior art keywords
- amplifier circuit
- transmission
- circuit
- mode
- ultrasonic diagnostic
- Prior art date
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Claims (7)
前記送波アンプ回路は負帰還回路により電圧利得が制御されるリニア増幅回路であり、前記送波アンプ回路の電源電圧が高く電圧利得が高い第１モードと、該第１モードに比べ前記送波アンプ回路の電源電圧が低く、電圧利得が低い第２モードとを切り替えるモード切替部を有することを特徴とする超音波診断装置。 In an ultrasonic diagnostic apparatus having a transmission amplifier circuit for amplifying a transmission signal and an ultrasonic transducer to which a voltage output from the transmission amplifier circuit is applied,
The transmitting amplifier is a linear amplifier circuit the voltage gain is controlled by a negative feedback circuit, and the transmitting amplifier circuit first mode is higher high voltage gain is the supply voltage of the feed than in the first mode An ultrasonic diagnostic apparatus comprising: a mode switching unit that switches between a second mode in which the power supply voltage of the wave amplifier circuit is low and the voltage gain is low.
前記第１モード及び前記第２モードは、前記負帰還回路の回路定数を変えることにより電圧利得が制御されることを特徴とする超音波診断装置。 In claim 1,
In the first mode and the second mode, the voltage gain is controlled by changing the circuit constant of the negative feedback circuit.
前記第１モード及び前記第２モードは、入力信号が異なった負帰還回路を通すことにより電圧利得が制御されることを特徴とする超音波診断装置。 In claim 1 or 2,
In the first mode and the second mode, the voltage gain is controlled by passing through negative feedback circuits having different input signals.
前記送波アンプ回路はその入力電圧値とその出力端子側の電源電圧値を掛け算した電圧値に比例する出力電圧となるリニア増幅回路を含むことを特徴とする超音波診断装置。 In any one of Claims 1-3.
Before Symbol transmitting amplifier circuit ultrasonic diagnostic apparatus characterized by comprising a linear amplifier circuit comprising an output voltage proportional to the voltage value by multiplying the input voltage value and the power supply voltage value of the output terminal side.
前記送波アンプ回路は送波信号用のＤＡＣを設け、
前記送波アンプ回路と前記送波信号用DACとの間に前段送波アンプ回路を設け、
前記送波アンプ回路の入力端子と出力端子の間に超音波振動子から戻ってくる受波信号を通過させるか遮断させるか制御可能な送受分離回路を前記送波アンプ回路と並列に設け、
前記送波アンプ回路の入力回路部には前記送波信号用DACから前記前段送波アンプ回路を経て伝わってくる送波信号のみならず、前記送受分離回路を経て戻ってくる受波信号も遮断することが可能なスイッチ回路を設け、
さらに、前記送波アンプ回路の出力トランジスタをオフ制御することが可能なスイッチ回路を設け、たことを特徴とする超音波診断装置。 In any one of Claims 1-4,
The transmission amplifier circuit includes a DAC for a transmission signal,
A pre-stage transmission amplifier circuit is provided between the transmission amplifier circuit and the transmission signal DAC,
Provided in parallel with the transmission amplifier circuit is a transmission / reception separation circuit that can be controlled to pass or block the reception signal returned from the ultrasonic transducer between the input terminal and the output terminal of the transmission amplifier circuit,
The input circuit unit of the transmission amplifier circuit cuts off not only the transmission signal transmitted from the transmission signal DAC via the preceding transmission amplifier circuit, but also the reception signal returned through the transmission / reception separation circuit. A switch circuit capable of
The ultrasonic diagnostic apparatus further comprises a switch circuit capable of turning off an output transistor of the transmission amplifier circuit.
前記入力端子へ入射する信号の伝達を防ぐために入力側トランジスタをオフさせる第１のスイッチング機能と、前記送波アンプ回路の出力トランジスタもオフさせるための第２のスイッチング機能を有することを特徴とする超音波診断装置。 In claim 5,
A first switching function for turning off an input side transistor to prevent transmission of a signal incident on the input terminal and a second switching function for turning off an output transistor of the transmission amplifier circuit are also provided. Ultrasonic diagnostic equipment.
前記送波アンプ回路は送波信号用ＤＡＣを設け、
前記送波信号用DACを設けた超音診断装置本体と前記超音波振動子を内蔵したプローブとの間に前記送波アンプ回路を内蔵した中継ポイント部を設けて、前記超音診断装置本体と前記プローブとの間をケーブルで接続したことを特徴とする超音波診断装置。 In claim 1,
The transmission amplifier circuit includes a transmission signal DAC,
Provided a relay point part incorporating the transmission amplifier circuit between the ultrasonic diagnostic apparatus main body provided with the DAC for the transmission signal and a probe incorporating the ultrasonic transducer, and the ultrasonic diagnostic apparatus main body An ultrasonic diagnostic apparatus, wherein the probe is connected with a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004268001A JP4680555B2 (en) | 2004-09-15 | 2004-09-15 | Ultrasonic diagnostic apparatus and semiconductor integrated circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004268001A JP4680555B2 (en) | 2004-09-15 | 2004-09-15 | Ultrasonic diagnostic apparatus and semiconductor integrated circuit thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006081647A JP2006081647A (en) | 2006-03-30 |
| JP2006081647A5 true JP2006081647A5 (en) | 2007-10-18 |
| JP4680555B2 JP4680555B2 (en) | 2011-05-11 |
Family
ID=36160608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004268001A Expired - Fee Related JP4680555B2 (en) | 2004-09-15 | 2004-09-15 | Ultrasonic diagnostic apparatus and semiconductor integrated circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4680555B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009050414A (en) * | 2007-08-27 | 2009-03-12 | Ge Medical Systems Global Technology Co Llc | Ultrasonic imaging system |
| US20110201934A1 (en) * | 2008-10-20 | 2011-08-18 | Koninklijke Philips Electronics N.V. | Low voltage ultrasound system with high voltage transducers |
| JP2012028451A (en) * | 2010-07-21 | 2012-02-09 | Hitachi Ltd | Semiconductor integrated circuit |
| JP6452981B2 (en) * | 2014-08-04 | 2019-01-16 | エイブリック株式会社 | Transmission drive circuit and semiconductor integrated circuit device |
| EP3370622B8 (en) * | 2015-11-02 | 2020-04-01 | Koninklijke Philips N.V. | Active distribution of high-voltage power for ultrasound transducers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58139108U (en) * | 1982-03-15 | 1983-09-19 | オリンパス光学工業株式会社 | Intrabody ultrasound diagnostic device |
| JP2000152930A (en) * | 1998-11-20 | 2000-06-06 | Toshiba Corp | Ultrasonic diagnostic device |
| JP3822832B2 (en) * | 2002-03-27 | 2006-09-20 | アロカ株式会社 | Transmission circuit of ultrasonic diagnostic equipment |
-
2004
- 2004-09-15 JP JP2004268001A patent/JP4680555B2/en not_active Expired - Fee Related
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