Abstract An automatic controller for a device such as a rotary motor has a pulse generation mechanism for generating two reference pulse trains which are antiphase with each other. A detecting device detects a controlled variable of the controlled device and generates a detected pulse train having a pulse repetition rate corresponding to the controlled variable. The detected pulse train and one of the reference pulse trains are fed to a pulse position modulator which synchronizes the detected pulse trains with one of the reference pulse trains. The synchronized pulse train and the other of the reference pulse trains are fed to a comparison circuit for generating pulse signals corresponding to the difference between the pulse repetition rate of the synchronized pulse train and the other reference pulse train. A converting circuit converts the pulse signals into rectangular wave signals having a rectangular wave of predetermined width and voltage, and an integrating circuit integrates differentially the rectangular wave signals and reference voltage signal. The output of the integrating circuit controls a manipulated variable of a regulator for the controlled device so that the controlled variable attains a desired value.
An automatic controller comprising a. a detector for generating a detected pulse signal Pf the pulse repetition rate of which corresponds to the controlled variable of a controlled device, b. a circuit means for generating two reference pulse signals A and B in antiphase with each other having the pulse repetition rates different by a predetermined value from the pulse repetition rate of the detected pulse signal Pf occurring when the controlled variable is equal to a desired value, c. a circuit means for generating a reference voltage signal VR d. a circuit means for synchronizing the detected pulse signal Pf with one of the reference pulse signals B and generating the pulse signal C thus synchronized, e. a comparison circuit for comparing the other reference pulse signal A and the pulse signal C and generating a pulse signal H the pulse repetition rate of which corresponds to difference between the pulse repetition rates of the two pulse signals, f. a circuit means for generating a rectangular wave signal I synchronized with the pulse signal H and having waves of predetermined voltage and width g. a differential integrator for receiving the rectangular wave signal I and the reference voltage signal VR as inputs and h. a regulator for receiving the output signal J of the differential integrator and actuating a manipulated value.
Claim 2
Dependent Claim
222 words
An automatic controller comprising a. a detector for generating a detected pulse signal Pf the pulse repetition rate of which corresponds to the controlled variable of a controlled device, b. a circuit means for generating two reference pulse signals A and B in antiphase with each other having the pulse repetition rates different by a predetermined value from the pulse repetition rate of the detected pulse signal Pf occurring when the controlled variable is equal to a desired value, c. a circuit means for generating a reference voltage signal VR d. a circuit means for synchronizing the detected pulse signal Pf with one of the reference pulse signals B and generating the pulse signal C thus synchronized, e. a comparison circuit for comparing the other reference pulse signal A and the pulse signal C and generating a pulse signal H the pulse repetition rate of which corresponds to difference between the pulse repetition rates of the two pulse signals, f. a circuit means for generating a rectangular wave signal I synchronized with the pulse signal H and having waves of predetermined voltage and width g. a differential integrator for receiving the rectangular wave signal I and the reference voltage signal VR as inputs and h. a regulator for receiving the output signal J of the differential integrator and actuating a manipulated value.
Claim 3
Dependent Claim
42 words
The automatic controller as set forth in claim 1 in which it characterized in that the power source for the circuit generating the reference voltage signal VR and the circuit for generating the rectangular wave signal I is one and the same.