Motor control apparatus

Claim 2

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal, said third means including a first compensation resistor provided between a point to which said second signal is applied and a point from which said third signal is derived, a capacitor connected in parallel with said first compensation resistor, and a second compensation resistor provided between said third signal supply end of said first compensation resistor and a fixed reference potential circuit for signal frequencies; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 3

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including an emitter grounded type complimentary inverter having transistors of first and second conductivity types, a first resistor connected in series with the emitter of said first conductivity type transistor, and a second resistor connected in series with the emitter of said second conductivity type transistor; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 4

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including an emitter grounded type complimentary inverter having transistors of first and second conductivity types, a first resistor connected in series with the emitter of said first conductivity type transistor, and a second resistor connected in series with the emitter of said second conductivity type transistor; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 5

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including a complementary inverter having MOS transistors of first and second conductivity types; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 6

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including a complementary inverter having MOS transistors of first and second conductivity types; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 7

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal, said third means including a first compensation resistor provided between a point to which said second signal is applied and a point from which said third signal is derived, a capacitor connected in parallel with said first compensation resistor, and a second compensation resistor provided between said third signal supply end of said first compensation resistor and a fixed reference potential circuit for signal frequencies; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including an emitter grounded type complimentary inverter having transistors of first and second conductivity types, a first resistor connected in series with the emitter of said first conductivity type transistor, and a second resistor connected in series with the emitter of said second conductivity type transistor; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 8

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation for said second signal, said third means including a first compensation resistor provided between a point to which said second signal is applied and a point from which said third signal is derived, a capacitor connected in parallel with said first compensation resistor, and a second compensation resistor provided between said third signal supply end of said first compensation resistor and a fixed reference potential circuit for signal frequencies; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including an emitter grounded type complimentary inverter having transistors of first and second conductivity types, a first resistor connected in series with the emitter of said first conductivity type transistor, and a second resistor connected in series with the emitter of said second conductivity type transistor; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 9

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation of said second signal; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including a complimentary inverter having MOS transistors of first and second conductivity types; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 10

A motor control apparatus comprising: (a) first means for producing a first signal having a period corresponding to the rotational speed of a motor; (b) second means for producing a second signal inverted to a first level in response to said first signal and subsequently inverted to a second level after the lapse of a predetermined period of time; (c) third means for producing a third signal obtained through a phase advance type phase compensation of said second signal; (d) fourth means for supplying and receiving a first current signal and a second current signal in accordance with the level of said third signal, said fourth means including a complimentary inverter having MOS transistors of first and second conductivity types; (e) fifth means for producing an output signal obtained through the integration of said first and second current signals; and (f) sixth means for driving said motor in accordance with the level of said output signal.

Claim 11

A motor control apparatus according to claim 1, 4 or 5, wherein the transfer function G of said third means substantially expressed as ##EQU16## where δ represents a value obtained by adding 1 to the quotient of division of the resistance of said first compensation resistor by the resistance of said second compensation resistor, S represents a complex number parameter, and T30 represents a time constant defined as the product of the capacitance of said capacitor and the resistance of said first compensation resistor.

Claim 12

A motor control apparatus according to any one of claims 1 to 5, wherein said third means is formed in a single semiconductor pellet.

Claim 13

A motor control apparatus according to claim 6, wherein said third means is formed in a single semiconductor pellet.