Abstract: The present invention is a power window sync switch for the windows of a vehicle that permits controlling all windows by a single active home or main control window switch. It permits the driver to move all window panels in the vehicle to the same position at the same time. The power window sync switch sends a signal to a micro-processor within the switch to indicate that the window position selected via the actuated switch is to be applied to all window panels simultaneously. The micro-processor within the switch may then proceed to actuate all window lift motors within the vehicle, causing movement of all window panels to the appropriate positions.

Abstract: A method of writing servo spirals for spiral-based self-servo writing includes determining control parameters for controlling movement of a write head between a first and a second disk radial location at a first velocity, writing a first spiral while controlling the movement of the write head between the first and the second disk radial location at the first velocity according to the determined control parameters, writing a second spiral while controlling movement of the write head between the first and the second disk radial location at a second velocity that is different from the first velocity, based on timing and location information from the first spiral, and writing a third spiral while controlling movement of the write head between the first and the second disk radial location at the first velocity according to the determined control parameters and based on timing and location information from the second spiral.

Abstract: An assembly for releasably connecting a roof bar to a roof of a vehicle. The assembly includes a body which is affixed to the roof bar, a base which is affixed to the roof and has a receiving portion for receiving a portion of the body, a locking pin slidably engaged with the body and the base, and slidable along an axis between a locked position and an unlocked position. In the locked position, the locking in engages the body and the base. In the unlocked position, the locking pin engages the body or the base. The assembly also has an actuator movable along the axis to slide the locking pin between the locked position and the unlocked position, thereby selectively engaging the body with the base.

Abstract: An assembly for releasably connecting a roof bar to a roof of a vehicle. The assembly includes a body which is affixed to the roof bar, a base which is affixed to the roof and has a receiving portion for receiving a portion of the body, a locking pin slidably engaged with the body and the base, and slidable along an axis between a locked position and an unlocked position. In the locked position, the locking in engages the body and the base. In the unlocked position, the locking pin engages the body or the base. The assembly also has an actuator movable along the axis to slide the locking pin between the locked position and the unlocked position, thereby selectively engaging the body with the base.

Abstract: A buck-boost switching regulator which includes a first switch, a first diode, an inductor, a second switch, a second diode, and a controller for controlling the first switch and the second switch, the controller being configured to receive a current signal indicative of a inductor current flowing in the inductor, and generating a signal indicative of an average current flowing in the inductor, the average current being utilized to control the first switch and the second switch, wherein the controller includes a first compensator circuit for outputting a voltage error signal, a second compensator circuit for outputting a current error signal and a modulator circuit to output a first control signal to control the first switch and a second control switch to control the second switch.

Abstract: A switching regulator circuit including a high-side switch and a low-side switch; an inductor having a first terminal coupled to a common terminal between the high-side switch and the low-side switch, and a second terminal coupled to an output terminal of the switching regulator circuit; a low-pass filter coupled to the first terminal of the inductor, where the low-pass filter is operative for generating a ramp signal based on the voltage signal present at the first terminal of the inductor; and a hysteretic comparator coupled to the low pass filter, where the hysteretic comparator receives the ramp signal as an input signal, and generates an output signal which is operative for controlling the operation of the high-side switch and the low-side switch.

Abstract: A frequency compensation circuit internal to an integrated circuit which comprises a transconductance amplifier having a first input configured to receive a reference voltage, a second input configured to receive an input voltage and an input current, a first output configured to output a first output current and a second output configured to output a second output current; and a compensation circuit connected to said second output of said transconductance amplifier, wherein said first output is connected to said second input.

Abstract: A buck-boost switching regulator which includes a first switch, a first diode, an inductor, a second switch, a second diode, and a controller for controlling the first switch and the second switch, the controller being configured to receive a current signal indicative of a inductor current flowing in the inductor, and generating a signal indicative of an average current flowing in the inductor, the average current being utilized to control the first switch and the second switch, wherein the controller includes a first compensator circuit for outputting a voltage error signal, a second compensator circuit for outputting a current error signal and a modulator circuit to output a first control signal to control the first switch and a second control switch to control the second switch.

Abstract: A frequency compensation circuit internal to an integrated circuit which comprises a transconductance amplifier having a first input configured to receive a reference voltage, a second input configured to receive an input voltage and an input current, a first output configured to output a first output current and a second output configured to output a second output current; and a compensation circuit connected to said second output of said transconductance amplifier, wherein said first output is connected to said second input.

Abstract: A control source and drivers for a thermal actuator fly height controlled heads in a disk drive system includes provisions for driving a heater element to dissipate various levels of power, and thus actuate the head by a desired amount, depending on whether the head is in a write mode or a read mode. Further, overshoot and undershoot are achieved as desired by providing initial values and equilibrium values and through the use of a control capacitor to provide a time constant to the drive signal to the heater element.

Abstract: A charge pump voltage regulator for converting an input voltage to an output voltage. The regulator includes an input terminal, an output terminal and a common terminal, with the input voltage being received across the input terminal and the common terminal, and the output voltage being produced across the output terminal and the common terminal.