Abstract: A remote control system for a video computer game having a portable controller unit with transmitter circuits responsive to manipulation of a joy stick for generating RF signals indicative of such manipulations. A reset switch and a game select switch is also provided for generating signals which are also sent as RF signals. A central receiver receives the RF signals from the portable controller unit and converts the manipulation signals into signals applicable to control the video game. The reset signal and the game select signal are sent to an actuator unit which is physically mounted onto the master control center and includes mechanical actuator mechanisms to mechanically engage the reset and game selector buttons on the master control center. The central receiver also includes detection elements to prevent random signals from disturbing the game during such time periods when it is not receiving signals from the transmitter controllers.

Abstract: A power factor controller for AC induction motors having a control triac connected in series with the motor for controlling the voltage applied across the motor to reduce the power to the motor commensurate to motor loading. A sensing circuit produces square wave pulses representative of the phase difference between the current through the motor and line voltage across the motor. A reference circuit provides a reference signal representative of the full cycle of the pulse. A comparison circuit compares the output of the sensing circuit with the reference circuit and produces the phase lag signal for the control circuit. In a digital embodiment the sensing means and reference means each respectively control gated clocks whereby the count is representative of the duration of the pulse. In an analog version there is included an integration circuit which produces an output voltage level proportional to motor loading.

Abstract: A power factor controller for an AC induction motor which includes a control circuit adapted to be electrically connected in series with the motor for controlling the voltage applied to the motor. A sensing circuit provides phase lag signals corresponding to the difference in phase between the current through the motor and voltage across the motor. An oscillation circuit produces a cyclical output whose frequency is variable and is dependent on the value of the phase lag signal. A counter receives the cyclical output and produces a control signal corresponding to a predetermined cycle count of the cyclical output so that the duration of the control signal is dependent upon the phase difference. The control signal is applied to the control device for controlling the conduction angle of the voltage applied to the motor to thereby provide power to the motor in accordance with motor loading.

Abstract: A power factor controller for an AC induction motor which controls the input power to the motor commensurate with the loading on the motor so as to improve efficiency. The circuit provides a signal representative of the phase difference between the current through the motor and the voltage across it. The phase difference varies with motor loading and accordingly is utilized to control the input power to the motor. The improvement in efficiency is displayed in terms of the percent savings provided by the controller. The circuit provides an immediate response to initial energization of the motor to enable the motor to reach full speed in minimum time.