Servo control circuit
AssigneeThe Singer Company
InventorJames A. Turner
Life of this patent
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Abstract
The disclosure describes a digital servo control circuit to actuate an analog servo motor smoothly from an actual present position to a new desired servo position in response to digital information from a computer. The control circuit described receives from a computer digital information representative of a new position desired at a predetermined velocity rate. Such information normally is pre-timed to correspond with a preselected timing rate in the digital computer. A position signal generator is responsive to such pre-timed digital information to generate a predetermined number of position signals intermediate of the pre-timed digital information to achieve the desired smooth operation of the servo motor.
Claims9
In a simulator training apparatus having a plurality of operations controlled in response to digital information from a computer and at least some of said operations having moveable parts connected for movement by an analog servo motor device, a digital control circuit to actuate said analog servo motor device in response to said digital information, comprising:
- means to receive digital information from said digital computer indicative of a new servo position at a predetermined velocity rate,
- said digital information being pre-timed to correspond with a pre-selected timing rate,
- position signal generator means responsive to said pre-timed digital information to generate a predetermined number of position signals intermediate said pre-timed digital information, and
- Read-Only-Memory means to produce a correction velocity signal responsive to position signal information input,
- said digital control circuit being so constructed and arranged that said servo motor device is moved smoothly from an actual present position to said new servo position.
Dependencies are inferred from the claim text.