JPS50126354A - - Google Patents
Info
- Publication number
- JPS50126354A JPS50126354A JP49138935A JP13893574A JPS50126354A JP S50126354 A JPS50126354 A JP S50126354A JP 49138935 A JP49138935 A JP 49138935A JP 13893574 A JP13893574 A JP 13893574A JP S50126354 A JPS50126354 A JP S50126354A
- Authority
- JP
- Japan
- 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
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Electromagnets (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US453620A US3860883A (en) | 1974-03-22 | 1974-03-22 | Magnetically operated electronic gain control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS50126354A true JPS50126354A (https=) | 1975-10-04 |
Family
ID=23801330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49138935A Pending JPS50126354A (https=) | 1974-03-22 | 1974-12-05 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3860883A (https=) |
| JP (1) | JPS50126354A (https=) |
| DE (1) | DE2458597A1 (https=) |
| FR (1) | FR2265217B1 (https=) |
| NL (1) | NL7415470A (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887201A (en) * | 1986-04-21 | 1989-12-12 | Nilssen Ole K | Self-oscillating inverter with adjustable frequency |
| US5175508A (en) * | 1991-12-05 | 1992-12-29 | Ford Motor Company | Voltage-controlled amplifier using operational amplifier |
| US7439713B2 (en) * | 2006-09-20 | 2008-10-21 | Pratt & Whitney Canada Corp. | Modulation control of power generation system |
| US8076882B2 (en) * | 2007-12-26 | 2011-12-13 | Pratt & Whitney Canada Corp. | Motor drive architecture with active snubber |
| US9208941B2 (en) * | 2012-08-16 | 2015-12-08 | Steven Murphy | Apparatus and method for safe state retention |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314002A (en) * | 1963-06-26 | 1967-04-11 | Gen Electric | Control arrangement for magnetic circuit element |
| US3323040A (en) * | 1964-01-24 | 1967-05-30 | Sperry Rand Corp | Combined pick-off and torquer having torquing signal superimposed on excitation or pick-off winding |
| US3521210A (en) * | 1968-05-13 | 1970-07-21 | Matsushita Electric Industrial Co Ltd | Intermediate frequency transformer |
| US3648117A (en) * | 1970-03-05 | 1972-03-07 | Omron Tatusi Electronics Co | Magnetic device |
| US3715675A (en) * | 1970-09-10 | 1973-02-06 | Nippon Gakki Siezo Kk | Variable resistor device using a field transistor |
-
1974
- 1974-03-22 US US453620A patent/US3860883A/en not_active Expired - Lifetime
- 1974-11-27 NL NL7415470A patent/NL7415470A/xx unknown
- 1974-12-05 JP JP49138935A patent/JPS50126354A/ja active Pending
- 1974-12-11 DE DE19742458597 patent/DE2458597A1/de active Pending
-
1975
- 1975-01-02 FR FR7500017A patent/FR2265217B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2458597A1 (de) | 1975-10-09 |
| NL7415470A (nl) | 1975-09-24 |
| FR2265217A1 (https=) | 1975-10-17 |
| US3860883A (en) | 1975-01-14 |
| FR2265217B1 (https=) | 1978-07-13 |