FR2351545B1 - - Google Patents
Info
- Publication number
- FR2351545B1 FR2351545B1 FR7613927A FR7613927A FR2351545B1 FR 2351545 B1 FR2351545 B1 FR 2351545B1 FR 7613927 A FR7613927 A FR 7613927A FR 7613927 A FR7613927 A FR 7613927A FR 2351545 B1 FR2351545 B1 FR 2351545B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/952—Proximity switches using a magnetic detector using inductive coils
- H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
- H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
- H03K17/9547—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable amplitude
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7613927A FR2351545A1 (en) | 1976-05-10 | 1976-05-10 | Switching circuit for proximity detector - compares collector-emitter voltage of principal transistor with reference and conducts when this is exceeded |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7613927A FR2351545A1 (en) | 1976-05-10 | 1976-05-10 | Switching circuit for proximity detector - compares collector-emitter voltage of principal transistor with reference and conducts when this is exceeded |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2351545A1 FR2351545A1 (en) | 1977-12-09 |
FR2351545B1 true FR2351545B1 (en) | 1981-06-19 |
Family
ID=9172898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7613927A Granted FR2351545A1 (en) | 1976-05-10 | 1976-05-10 | Switching circuit for proximity detector - compares collector-emitter voltage of principal transistor with reference and conducts when this is exceeded |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2351545A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458180A2 (en) * | 1979-05-30 | 1980-12-26 | Telemecanique Electrique | TRANSISTOR SWITCH, PROVIDED WITH AN OVERCURRENT PROTECTION DEVICE, WITH AUTOMATIC RESET |
GB8321549D0 (en) * | 1983-08-10 | 1983-09-14 | British Telecomm | Electronic switch |
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1976
- 1976-05-10 FR FR7613927A patent/FR2351545A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2351545A1 (en) | 1977-12-09 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse |