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Control circuit for a DC motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Analog armature control
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Control circuit for a dc motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by digital or...
Reexamination Certificate

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Control circuit for a permanent magnet or constant excitation di

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Control circuit for driving motor with reduced power consumption

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Patent

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Control circuit for fan

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Reexamination Certificate

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Control circuits of an apparatus for physical exercises

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
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Control device for DC motors

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Reexamination Certificate

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Control of high speed DC motor vertical voltage vector...

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator
Reexamination Certificate

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Control system for a permanent magnet motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
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Control system for a separately excited DC motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by digital or...
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Control system for controlling object at constant state

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
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Control system for controlling revolution speed of electric moto

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Control system for multi-phase brushless DC motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Patent

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Current limiting control circuit for d.c. motors

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
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DC fan having a power sleep-mode control unit and method for...

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator
Reexamination Certificate

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DC motor control circuit

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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DC motor control in electronic sewing machine

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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DC motor control method and apparatus

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Reexamination Certificate

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DC motor control system and method

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Reexamination Certificate

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DC motor control using frequency and pulsewidth modulation

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
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