Patent ID: 7091682
Filing Date: 2006-08-15
Classification: E05F,E06B,H03L

Abstract:
1. A powered assembly, comprising: at least one object that can be moved between a first configuration and a second configuration, the object being selected from the group consisting of window coverings, awnings, skylight coverings, projector screens, curtains, and screens; at least one motor; at least one actuator coupled to the motor and the object to move the object when the motor is energized; at least one logic chip controlling the motor, the logic chip including at least one clock generating clocking signals; and at least one frequency stabilizer circuit receiving input voltage and outputting current to the clock, the frequency stabilizer circuit outputting a current that is a function of the voltage and temperature to produce an oscillator frequency that is substantially constant over a range of input voltage values and over a range of ambient temperature values, wherein the frequency stabilizer circuit includes a constant current portion; comprising plural diodes and a constant resistance portion comprising at least one resistor.