GB1516695A – Switching transistor drive apparatus
– Google Patents
GB1516695A – Switching transistor drive apparatus
– Google Patents
Switching transistor drive apparatus
Info
Publication number
GB1516695A
GB1516695A
GB23964/75A
GB2396475A
GB1516695A
GB 1516695 A
GB1516695 A
GB 1516695A
GB 23964/75 A
GB23964/75 A
GB 23964/75A
GB 2396475 A
GB2396475 A
GB 2396475A
GB 1516695 A
GB1516695 A
GB 1516695A
Authority
GB
United Kingdom
Prior art keywords
transistor
base
emitter
circuit
switching
Prior art date
1974-06-04
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
Application number
GB23964/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North Electric Co
Original Assignee
North Electric Co
Priority date (The priority date 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 date listed.)
1974-06-04
Filing date
1975-06-03
Publication date
1978-07-05
1975-06-03
Application filed by North Electric Co
filed
Critical
North Electric Co
1978-07-05
Publication of GB1516695A
publication
Critical
patent/GB1516695A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/04—Modifications for accelerating switching
H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
H03K17/0412—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the control circuit
H03K17/04126—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the control circuit in bipolar transistor switches
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/04—Modifications for accelerating switching
H03K17/042—Modifications for accelerating switching by feedback from the output circuit to the control circuit
H03K17/0424—Modifications for accelerating switching by feedback from the output circuit to the control circuit by the use of a transformer
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/12—Modifications for increasing the maximum permissible switched current
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
H03K17/601—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors using transformer coupling
Abstract
1516695 Switching NORTH ELECTRIC CO 3 June 1975 [4 June 1974] 23964/75 Heading H3T [Also in Division H2] In the control of switching transistor 36 {e.g. in a power inverter}, regenerative current feedback between the emitter-base and emitter-collector circuits is provided by means of windings 28, 30, the number of turns in base drive winding 28 exceeding that in feedback winding 30, a control circuit being coupled to the emitter-base circuit via windings 18, 28. The regeneration decreases switching times of transistor 36. Control waveform 40 controls the switching of control transistor 10, the charging current, from source 9, of capacitor 16 when transistor 10 turns off triggering the switching-on of transistor 36, whose switch-off is triggered when capacitor 16 discharges through transistor 10 when saturated. The charging path of the capacitor may simply comprise a resistor (12), Fig. I (not shown) in the control transistor collector circuit, or circuit 50 is provided, transistor 56 providing a path for the charging current wherever transistor 10 is cut off, and itself being cut off during capacitor discharge. The numbers of turns in windings 18, 28, 30 respectively are in decreasing magnitude, base current for transistor 36, when in the on state being mainly provided by the regeneration. Diode 14 enables turn-off of transistor 36 to take place even in the absence of capacitor charge due to the low impedance in the circuit 18, 14, 10. Damping; of ringing which would be caused by the base-emitter capacitance of transistor 36 co-operating with winding 28; is provided by resistor 42, with the possible addition of network 70 also protecting the base-emitter from excess reverse voltage, resistor 72 ensuring that a sudden cut-off of current diverted through network 70 does not occur with decreasing emitter-base voltage. Diode 62 protects the emitter-base circuit of transistor 56 from excess reverse voltage. Two or more power circuits may be simultaneously switched using one control circuit. The duty cycle may be in the range, low, up to in excess of 50%. The transformer may have a ferrite core.
GB23964/75A
1974-06-04
1975-06-03
Switching transistor drive apparatus
Expired
GB1516695A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US476254A
US3930170A
(en)
1974-06-04
1974-06-04
Switching transistor drive apparatus
Publications (1)
Publication Number
Publication Date
GB1516695A
true
GB1516695A
(en)
1978-07-05
Family
ID=23891120
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB23964/75A
Expired
GB1516695A
(en)
1974-06-04
1975-06-03
Switching transistor drive apparatus
Country Status (3)
Country
Link
US
(1)
US3930170A
(en)
DE
(1)
DE2524642A1
(en)
GB
(1)
GB1516695A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2124050A
(en)
*
1982-06-28
1984-02-08
Gould Instr
Semiconductor switching circuits
GB2265512A
(en)
*
1992-03-19
1993-09-29
Astec Int Ltd
Driver circuit for controlling a switching device
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS52114259A
(en)
*
1976-03-22
1977-09-24
Nippon Telegr & Teleph Corp
Drive circuit
FR2360204A1
(en)
*
1976-07-29
1978-02-24
Int Standard Electric Corp
Low loss DC converter for emergency equipment – has separate transformer based control circuit for each power transistor
US4052623A
(en)
*
1976-08-10
1977-10-04
General Electric Company
Isolated semiconductor gate control circuit
US4074147A
(en)
*
1976-12-03
1978-02-14
Xerox Corporation
Switching amplifiers
JPS57174933A
(en)
*
1981-04-01
1982-10-27
Lucas Industries Ltd
Transistor drive circuit
JPS5825719A
(en)
*
1981-08-07
1983-02-16
Fanuc Ltd
Driving circuit for switching transistor
CH653828A5
(en)
*
1983-09-30
1986-01-15
Bbc Brown Boveri & Cie
Pulse transmission circuit for transmission of electrical pulses with potential separation
DE3340034A1
(en)
*
1983-11-05
1985-05-23
Telefunken electronic GmbH, 7100 Heilbronn
Bipolar analog switch
DE3423213A1
(en)
*
1984-06-22
1986-01-02
Siemens AG, 1000 Berlin und 8000 München
Arrangement for transmitting a pulse train for firing a thyristor
AT404307B
(en)
*
1984-06-22
1998-10-27
Siemens Ag
Arrangement for generating and transmitting a pulse train for triggering a thyristor
JPS6292767A
(en)
*
1985-10-16
1987-04-28
Mitsubishi Electric Corp
Power source device for drive and control of three terminal controllable electric valve
DE3712784A1
(en)
*
1987-04-15
1988-11-03
Philips Patentverwaltung
CIRCUIT ARRANGEMENT FOR LIMITING THE SWITCH-ON CURRENT PEAKS IN A SWITCHING TRANSISTOR
EP0591460A4
(en)
*
1991-06-27
1995-05-24
Bondy Daniel J
Steerable pulse phase controller.
DE4317154B4
(en)
*
1993-05-24
2007-01-04
Deutsche Thomson-Brandt Gmbh
Circuit for driving a switching transistor
GB2493562B
(en)
*
2011-08-12
2018-10-17
E2V Tech Uk Limited
Drive circuit and method for a gated semiconductor switching device
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3657569A
(en)
*
1969-10-27
1972-04-18
Bose Corp The
Turn on turn off feedback drive switching circuit
US3610963A
(en)
*
1970-04-30
1971-10-05
Westinghouse Electric Corp
Switch drive circuit for the time ratio controlled transistor switching circuits
1974
1974-06-04
US
US476254A
patent/US3930170A/en
not_active
Expired – Lifetime
1975
1975-06-03
DE
DE19752524642
patent/DE2524642A1/en
not_active
Withdrawn
1975-06-03
GB
GB23964/75A
patent/GB1516695A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2124050A
(en)
*
1982-06-28
1984-02-08
Gould Instr
Semiconductor switching circuits
GB2265512A
(en)
*
1992-03-19
1993-09-29
Astec Int Ltd
Driver circuit for controlling a switching device
Also Published As
Publication number
Publication date
DE2524642A1
(en)
1976-02-05
US3930170A
(en)
1975-12-30
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Legal Events
Date
Code
Title
Description
1978-11-08
PS
Patent sealed [section 19, patents act 1949]
1979-11-14
PS
Patent sealed [section 19, patents act 1949]
Free format text:
DELETE
1979-11-28
PS
Patent sealed [section 19, patents act 1949]
1982-01-06
PCNP
Patent ceased through non-payment of renewal fee
