GB1476142A - Bridge switching amplifiers - Google Patents

Bridge switching amplifiers

Info

Publication number
GB1476142A
GB1476142A GB3522874A GB3522874A GB1476142A GB 1476142 A GB1476142 A GB 1476142A GB 3522874 A GB3522874 A GB 3522874A GB 3522874 A GB3522874 A GB 3522874A GB 1476142 A GB1476142 A GB 1476142A
Authority
GB
United Kingdom
Prior art keywords
signal
velocity
motor
armature voltage
error signal
Prior art date
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
GB3522874A
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.)
General Electric Co
Original Assignee
General 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.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1476142A publication Critical patent/GB1476142A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/2913—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1476142 Automatic control of speed GENERAL ELECTRIC CO 9 Aug 1974 [4 Sept 1973] 35228/74 Heading G3R Motor control apparatus comprises four switching means 11-14 connected as a bridge, and switch control means 50-53 responsive to drive signals for operating the switches for connecting a D.C. source 19 to a motor 10 in either polarity, and also includes means 29 for producing a signal indicative of the velocity of the motor 10, a first circuit 25-32 responsive to the velocity signal and a commanded velocity signal for generating a velocity error signal, and a second circuit 33, 34 responsive to the error signal and to the motor armature voltage for generating the drive signal, which drive signal is a function of the difference between the velocity error signal and the armature voltage. As shown, a tachogenerator 29 provides a signal via resistor 26 to amplifier 25 and a command velocity signal is also applied via resistor 27. The difference signal is applied via resistor 32 to amplifier 34 together with a signal indicative of the armature voltage which is derived via points 20, 21 and through amplifier 22 and resistors 30, 31. A signal PWC is provided at 34 which is indicative of the difference between the voltage and the speed error signals. This error signal is compared at 42 with a sawtooth signal TW generated at 35 and is added to the sawtooth via resistors 43, 44 and compared with ground at 46. Pulsed outputs are produced, see Fig. 3 (not shown) at 42, 46 and are applied to the switch control circuits 50-53 in real and inverted form as shown. Circuits 50-53 are delay circuits, Fig. 2 (not shown) whereby turn-on of the associated transistor switch, which occurs when the input thereto goes low # high, is delayed but turn-off is not delayed. The comparison of the velocity error signal with the armature voltage increases the linearity of motor response to the velocity command signals.
GB3522874A 1973-09-04 1974-08-09 Bridge switching amplifiers Expired GB1476142A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39398073A 1973-09-04 1973-09-04

Publications (1)

Publication Number Publication Date
GB1476142A true GB1476142A (en) 1977-06-10

Family

ID=23557041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3522874A Expired GB1476142A (en) 1973-09-04 1974-08-09 Bridge switching amplifiers

Country Status (1)

Country Link
GB (1) GB1476142A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023622A1 (en) * 1979-07-30 1981-02-11 Siemens Aktiengesellschaft Method for pulse width control of a direct current two-way control element and circuitry for carrying out the method
EP0024300A1 (en) * 1979-07-30 1981-03-04 Siemens Aktiengesellschaft Process for pulse-width control of a direct current two-way control element and circuitry for the application of the process
EP0036248A1 (en) * 1980-03-14 1981-09-23 General Motors Corporation Motor voltage feedback for a servo motor control system
DE3226001A1 (en) * 1982-07-12 1984-01-12 Siemens Ag METHOD FOR GENERATING CONTROL IMPULS FOR A DC CONTROLLER AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD
DE3500711A1 (en) * 1985-01-11 1986-07-17 Robert Bosch Gmbh, 7000 Stuttgart Current-regulating circuit having a bridge circuit
DE4024160A1 (en) * 1989-08-11 1991-02-14 Siemens Ag DC level controller with antiphase clocked switch pairs - performs two-term control of inductive load current maintained at desired value by selective switching circuit
EP1511173A3 (en) * 2003-08-28 2005-03-09 Flying Mole Corporation Power conversion apparatus and dead time generator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023622A1 (en) * 1979-07-30 1981-02-11 Siemens Aktiengesellschaft Method for pulse width control of a direct current two-way control element and circuitry for carrying out the method
EP0024300A1 (en) * 1979-07-30 1981-03-04 Siemens Aktiengesellschaft Process for pulse-width control of a direct current two-way control element and circuitry for the application of the process
EP0036248A1 (en) * 1980-03-14 1981-09-23 General Motors Corporation Motor voltage feedback for a servo motor control system
DE3226001A1 (en) * 1982-07-12 1984-01-12 Siemens Ag METHOD FOR GENERATING CONTROL IMPULS FOR A DC CONTROLLER AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD
DE3500711A1 (en) * 1985-01-11 1986-07-17 Robert Bosch Gmbh, 7000 Stuttgart Current-regulating circuit having a bridge circuit
DE4024160A1 (en) * 1989-08-11 1991-02-14 Siemens Ag DC level controller with antiphase clocked switch pairs - performs two-term control of inductive load current maintained at desired value by selective switching circuit
EP1511173A3 (en) * 2003-08-28 2005-03-09 Flying Mole Corporation Power conversion apparatus and dead time generator
US7019986B2 (en) 2003-08-28 2006-03-28 Flying Mole Corporation Power conversion apparatus and dead time generator

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee