GB1067741A – Inverters
– Google Patents
GB1067741A – Inverters
– Google Patents
Inverters
Info
Publication number
GB1067741A
GB1067741A
GB11212/63A
GB1121263A
GB1067741A
GB 1067741 A
GB1067741 A
GB 1067741A
GB 11212/63 A
GB11212/63 A
GB 11212/63A
GB 1121263 A
GB1121263 A
GB 1121263A
GB 1067741 A
GB1067741 A
GB 1067741A
Authority
GB
United Kingdom
Prior art keywords
pulses
switch
diode
generator
diodes
Prior art date
1963-03-21
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
GB11212/63A
Inventor
Roger William Nolan
Derek Stanley Adams
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
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.)
1963-03-21
Filing date
1963-03-21
Publication date
1967-05-03
1963-03-21
Application filed by Lucas Industries Ltd, Joseph Lucas Industries Ltd
filed
Critical
Lucas Industries Ltd
1963-03-21
Priority to GB11212/63A
priority
Critical
patent/GB1067741A/en
1964-03-16
Priority to US352144A
priority
patent/US3328668A/en
1964-03-19
Priority to FR967903A
priority
patent/FR1395064A/en
1964-03-20
Priority to DE19641488197
priority
patent/DE1488197A1/en
1964-03-20
Priority to NL6403029A
priority
patent/NL6403029A/xx
1967-05-03
Publication of GB1067741A
publication
Critical
patent/GB1067741A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
H03K3/35—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
H03K3/352—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region the devices being thyristors
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M1/00—Details of apparatus for conversion
H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
H02M7/517—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with special starting equipment
Abstract
1,067,741. Transistor pulse circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. March 12, 1964 [March 21, 1963], No. 11212/63. Heading H3T. [Also in Division H2] One inverter includes gate-controlled switches i.e. semi-conductor elements similar to SCR’s but capable of being switched off as well as on by gate-cathode pulses. Such elements are disclosed in Specification 1,031,451. As shown in Fig. 1, two such elements 36, 37 are connected to the ends of a centre-tapped primary winding 38 of a transformer feeding a load 40. Switch-on pulses are derived from a multi-vibrator M whose outputs are connected to the bases of transistors 29, 31 which deliver anti-phase square waves to the gates of switches 36, 37 (see Fig. 2(a) and (b)). The outputs of the multivibrator also trigger a blocking oscillator B through capacitors 51, 52, the output of this oscillator being amplified by transistor 55 to provide in the secondary winding 62 of a transformer 58, narrow negative pulses (Fig. 2(c)) which are applied to the gates of the switches 36, 37 through diodes 65, 66. In operation, assuming switch 37 is on and switch 36 off then a pulse as shown in Fig. 2(a) would tend to switch 36 on but cannot do so by the pulse of Fig. 2(c) present at the same time. However, this pulse does turn the switch 37 off. At the end of the narrow pulse the switch 36 is turned on and the operation proceeds to give an output as shown in Fig. 2(d). Diodes 42, 43 prevent the ends of the primary winding going more negative than the negative supply line. Diodes 64 prevent the turn-on pulses being short-circuited through the winding 62, and diodes 65, 66 prevent these pulses passing to both gates simultaneously. Capacitors 67, 68 reduce the amplitude of the turn-off pulses. In a modification (Fig. 3, not shown) the square waves are symmetrical about zero voltage and the narrow pulses are of smaller amplitude. Thus the negative halves of the square waves contribute to the switching off currents. The gate circuits are consequentially modified by the inclusion of a diode and resistor in parallel so that the amplitudes of positive and negative half-waves may be different. In a further embodiment incorporating the latter (Fig. 4) the control circuit comprises an oscillator A, a generator C operated by the oscillator A and producing pulses for holding the switches off and a generator E controlled by a generator D which in turn is controlled by the oscillator A, the generator E producing pulses for turning the switches on and off. In the oscillator A a stable voltage across a Zener diode 77 is applied to a series circuit of resistors 78, 79 and four layer diode 81, which diode is shunted by a capacitor 82 and resistor 83. The capacitor charges until the diode breaks down when the capacitor discharges through the diode and the diode becomes non-conducting. This cycle is repeated. The output is applied to the generator C which is a blocking oscillator having two output windings 87, 88. The winding 87 is connected to the gate-cathode circuit of switch 36 via a Zener diode 89, a diode 91 and a diode 92. The winding 88 is similarly connected to switch 37. Generator C provides pulses which prevent a switch being turned on until the other switch is off (Fig. 5(a), not shown). Generator D is a blocking oscillator providing very narrow pulses (Fig. 5(c) not shown) which are applied to the bases of transistors 99, 101 in the square wave generator E. When such a pulse is applied both transistors are biased to cut-off. At the end of the pulse by virtue of a capacitor 106, which is connected with a winding 105 on the output transformer of the generator, that transistor which was previously off is turned on. An output (Fig. 5(c), not shown) is derived from windings 107; 108 and applied to the gates of the switches, the final inverter output being a stepped square wave (Fig. 5(d)). The diodes 91, 94, are equivalent to diodes 65, 66; the Zener diodes 89, 93 prevent the output 5(c) being short-circuited by windings 87, 88; and the diodes 92, 95 prevent hold-off pulses being applied to the gates.
GB11212/63A
1963-03-21
1963-03-21
Inverters
Expired
GB1067741A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
GB11212/63A
GB1067741A
(en)
1963-03-21
1963-03-21
Inverters
US352144A
US3328668A
(en)
1963-03-21
1964-03-16
Electric current inverters
FR967903A
FR1395064A
(en)
1963-03-21
1964-03-19
Inverter
DE19641488197
DE1488197A1
(en)
1963-03-21
1964-03-20
Converter
NL6403029A
NL6403029A
(en)
1963-03-21
1964-03-20
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB11212/63A
GB1067741A
(en)
1963-03-21
1963-03-21
Inverters
Publications (1)
Publication Number
Publication Date
GB1067741A
true
GB1067741A
(en)
1967-05-03
Family
ID=9982073
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB11212/63A
Expired
GB1067741A
(en)
1963-03-21
1963-03-21
Inverters
Country Status (4)
Country
Link
US
(1)
US3328668A
(en)
DE
(1)
DE1488197A1
(en)
GB
(1)
GB1067741A
(en)
NL
(1)
NL6403029A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3006035A1
(en)
*
1979-02-20
1980-08-21
Tokyo Shibaura Electric Co
GATE CONTROL CIRCUIT FOR A CURRENT TRANSFORMER WITH FULL CONTROL GATE THYRISTORS
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3938027A
(en)
*
1974-06-12
1976-02-10
Mitsubishi Denki Kabushiki Kaisha
Electrical thyristor circuit
US3930195A
(en)
*
1974-06-14
1975-12-30
Mitsubishi Electric Corp
Electrical circuit having a pair of thyristors
DE2751742A1
(en)
*
1977-11-19
1979-05-23
Blaupunkt Werke Gmbh
High efficiency push=pull power supply inverter – has output transistor drive regulation via pulse shaper prior to driver
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1103389B
(en)
*
1959-10-14
1961-03-30
Siemens Ag
Switching arrangement with a four-layer semiconductor arrangement
US3120634A
(en)
*
1960-02-01
1964-02-04
Gen Electric
Controlled rectifier inverter circuit
US3257604A
(en)
*
1961-07-07
1966-06-21
Westinghouse Electric Corp
Inverter
US3219906A
(en)
*
1961-08-25
1965-11-23
Lockheed Aircraft Corp
Power conversion device with voltage regulated output
US3243686A
(en)
*
1962-05-09
1966-03-29
Sperry Rand Corp
Inverter circuit utilizing silicon controlled rectifiers pulsed by phase delaying networks
US3246226A
(en)
*
1962-08-23
1966-04-12
Westinghouse Electric Corp
Inverter network
1963
1963-03-21
GB
GB11212/63A
patent/GB1067741A/en
not_active
Expired
1964
1964-03-16
US
US352144A
patent/US3328668A/en
not_active
Expired – Lifetime
1964-03-20
NL
NL6403029A
patent/NL6403029A/xx
unknown
1964-03-20
DE
DE19641488197
patent/DE1488197A1/en
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3006035A1
(en)
*
1979-02-20
1980-08-21
Tokyo Shibaura Electric Co
GATE CONTROL CIRCUIT FOR A CURRENT TRANSFORMER WITH FULL CONTROL GATE THYRISTORS
Also Published As
Publication number
Publication date
NL6403029A
(en)
1964-09-22
DE1488197A1
(en)
1969-03-13
US3328668A
(en)
1967-06-27
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