BR7502315A - Circuito de controle para variar a impedancia da linha de suprimento de corrente de uma fonte de ca para uma carga de ca - Google Patents
Circuito de controle para variar a impedancia da linha de suprimento de corrente de uma fonte de ca para uma carga de caInfo
- Publication number
- BR7502315A BR7502315A BR2951/75A BR7502951A BR7502315A BR 7502315 A BR7502315 A BR 7502315A BR 2951/75 A BR2951/75 A BR 2951/75A BR 7502951 A BR7502951 A BR 7502951A BR 7502315 A BR7502315 A BR 7502315A
- Authority
- BR
- Brazil
- Prior art keywords
- impedance
- vary
- load
- control circuit
- supply line
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
- G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Hardware Design (AREA)
- Bipolar Transistors (AREA)
- Control Of Ac Motors In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Semiconductor Integrated Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295274A JPS57658B2 (US20080293856A1-20081127-C00150.png) | 1974-04-16 | 1974-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7502315A true BR7502315A (pt) | 1976-02-17 |
Family
ID=12650344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR2951/75A BR7502315A (pt) | 1974-04-16 | 1975-04-16 | Circuito de controle para variar a impedancia da linha de suprimento de corrente de uma fonte de ca para uma carga de ca |
Country Status (13)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57658B2 (US20080293856A1-20081127-C00150.png) * | 1974-04-16 | 1982-01-07 | ||
| US4855627A (en) * | 1987-01-14 | 1989-08-08 | Kabushiki Kaisha Toshiba | Filter circuit |
| GB2204445B (en) * | 1987-03-06 | 1991-04-24 | Texas Instruments Ltd | Semiconductor switch |
| US6145202A (en) | 1998-03-10 | 2000-11-14 | Kai U.S.A. Ltd. | Opening and closing assisting mechansim for folding knife |
| US6338431B1 (en) | 1999-04-19 | 2002-01-15 | Kai U.S.A. Ltd. | Locking knife blade with moving locking mechanism on blade |
| US6378214B1 (en) | 1999-04-19 | 2002-04-30 | Kai U.S.A. Ltd. | Locking knife blade with moving locking mechanism on blade |
| US6701621B2 (en) | 2002-05-08 | 2004-03-09 | Charles L. Kain | Releasable double locking knife |
| US20040154170A1 (en) * | 2002-05-08 | 2004-08-12 | Kain Charles L. | Releasable double locking knife |
| CN1787896A (zh) | 2003-02-06 | 2006-06-14 | 布克刀具股份有限公司 | 弹簧助力刀 |
| US7302760B2 (en) * | 2004-01-05 | 2007-12-04 | Fiskar Brands, Inc. | Folding knife with dual-action piston |
| US7681316B2 (en) * | 2005-09-16 | 2010-03-23 | Kai U.S.A., Ltd. | Folding knife having a locking mechanism |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE547227A (US20080293856A1-20081127-C00150.png) * | 1955-04-21 | |||
| NL242787A (US20080293856A1-20081127-C00150.png) * | 1958-09-05 | |||
| NL274830A (US20080293856A1-20081127-C00150.png) * | 1961-04-12 | |||
| US3289009A (en) * | 1963-05-07 | 1966-11-29 | Ibm | Switching circuits employing surface potential controlled semiconductor devices |
| US3500141A (en) * | 1964-10-13 | 1970-03-10 | Ibm | Transistor structure |
| US3397326A (en) * | 1965-03-30 | 1968-08-13 | Westinghouse Electric Corp | Bipolar transistor with field effect biasing means |
| US3591430A (en) * | 1968-11-14 | 1971-07-06 | Philco Ford Corp | Method for fabricating bipolar planar transistor having reduced minority carrier fringing |
| DE2211384A1 (de) * | 1971-03-20 | 1972-11-30 | Philips Nv | Schaltungsanordnung mit mindestens einem strahlungsgespeisten Schaltungselement und Halbleiteranordnung zur Anwendung in einer derartigen Schaltungsanordnung |
| US3748500A (en) * | 1971-12-22 | 1973-07-24 | F Tam | Multiple redundant power supply |
| US3755793A (en) * | 1972-04-13 | 1973-08-28 | Ibm | Latent image memory with single-device cells of two types |
| JPS493583A (US20080293856A1-20081127-C00150.png) * | 1972-04-20 | 1974-01-12 | ||
| JPS49131388A (US20080293856A1-20081127-C00150.png) * | 1973-04-18 | 1974-12-17 | ||
| JPS5147583B2 (US20080293856A1-20081127-C00150.png) * | 1972-12-29 | 1976-12-15 | ||
| JPS5147584B2 (US20080293856A1-20081127-C00150.png) * | 1972-12-29 | 1976-12-15 | ||
| JPS57658B2 (US20080293856A1-20081127-C00150.png) * | 1974-04-16 | 1982-01-07 |
-
1974
- 1974-04-16 JP JP4295274A patent/JPS57658B2/ja not_active Expired
-
1975
- 1975-04-11 US US05/567,275 patent/US4040081A/en not_active Expired - Lifetime
- 1975-04-14 GB GB15242/75A patent/GB1500149A/en not_active Expired
- 1975-04-15 CA CA224,663A patent/CA1055115A/en not_active Expired
- 1975-04-15 AT AT0287175A patent/AT374973B/de not_active IP Right Cessation
- 1975-04-16 IT IT22420/75A patent/IT1037319B/it active
- 1975-04-16 SE SE7504358A patent/SE7504358L/xx unknown
- 1975-04-16 FR FR7511872A patent/FR2268362B1/fr not_active Expired
- 1975-04-16 BR BR2951/75A patent/BR7502315A/pt unknown
- 1975-04-16 NL NL7504543A patent/NL7504543A/xx not_active Application Discontinuation
- 1975-04-16 ES ES436644A patent/ES436644A1/es not_active Expired
- 1975-04-16 BE BE2054273A patent/BE827973A/xx not_active IP Right Cessation
- 1975-04-16 DE DE19752516758 patent/DE2516758A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU8022175A (en) | 1976-10-21 |
| ES436644A1 (es) | 1977-02-01 |
| AT374973B (de) | 1984-06-25 |
| FR2268362A1 (US20080293856A1-20081127-C00150.png) | 1975-11-14 |
| BE827973A (fr) | 1975-08-18 |
| US4040081A (en) | 1977-08-02 |
| IT1037319B (it) | 1979-11-10 |
| CA1055115A (en) | 1979-05-22 |
| DE2516758A1 (de) | 1975-10-30 |
| NL7504543A (nl) | 1975-10-20 |
| ATA287175A (de) | 1983-10-15 |
| SE7504358L (sv) | 1975-10-17 |
| JPS50134163A (US20080293856A1-20081127-C00150.png) | 1975-10-24 |
| GB1500149A (en) | 1978-02-08 |
| FR2268362B1 (US20080293856A1-20081127-C00150.png) | 1983-04-01 |
| JPS57658B2 (US20080293856A1-20081127-C00150.png) | 1982-01-07 |
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