Abstract: Disclosed examples include systems to determine an on-state impedance of a high voltage transistor, and measurement circuits to measure the drain voltage of a drain terminal of the high voltage transistor during switching, including an attenuator circuit to generate an attenuator output signal representing a voltage across the high voltage transistor when the high voltage transistor is turned on, and a differential amplifier to provide an amplified sense voltage signal according to the attenuator output signal. The attenuator circuit includes a clamp transistor coupled with the drain terminal of the high voltage transistor to provide a sense signal to a first internal node, a resistive voltage divider circuit to provide the attenuator output signal based on the sense signal, and a first clamp circuit to limit the sense signal voltage when the high voltage transistor is turned off.

Abstract: Disclosed examples include systems to determine an on-state impedance of a high voltage transistor, and measurement circuits to measure the drain voltage of a drain terminal of the high voltage transistor during switching, including an attenuator circuit to generate an attenuator output signal representing a voltage across the high voltage transistor when the high voltage transistor is turned on, and a differential amplifier to provide an amplified sense voltage signal according to the attenuator output signal. The attenuator circuit includes a clamp transistor coupled with the drain terminal of the high voltage transistor to provide a sense signal to a first internal node, a resistive voltage divider circuit to provide the attenuator output signal based on the sense signal, and a first clamp circuit to limit the sense signal voltage when the high voltage transistor is turned off.

Abstract: Disclosed examples include systems to determine an on-state impedance of a high voltage transistor, and measurement circuits to measure the drain voltage of a drain terminal of the high voltage transistor during switching, including an attenuator circuit to generate an attenuator output signal representing a voltage across the high voltage transistor when the high voltage transistor is turned on, and a differential amplifier to provide an amplified sense voltage signal according to the attenuator output signal. The attenuator circuit includes a clamp transistor coupled with the drain terminal of the high voltage transistor to provide a sense signal to a first internal node, a resistive voltage divider circuit to provide the attenuator output signal based on the sense signal, and a first clamp circuit to limit the sense signal voltage when the high voltage transistor is turned off.

Abstract: A method for reducing radiation effects in an electronic circuit is disclosed. The method involves periodically transferring operation of the electronic circuit to at least one alternate processing element of a plurality of processing elements. With the at least one alternate processing element in control, the method reconfigures one or more processing elements of the plurality of processing elements. Once the one or more processing elements are reconfigured, the method synchronizes the one or more processing elements with the at least one alternate processing element.

Abstract: A method for reducing radiation effects in an electronic circuit is disclosed. The method involves periodically transferring operation of the electronic circuit to at least one alternate processing element of a plurality of processing elements. With the at least one alternate processing element in control, the method reconfigures one or more processing elements of the plurality of processing elements. Once the one or more processing elements are reconfigured, the method synchronizes the one or more processing elements with the at least one alternate processing element.

Abstract: A multi-stage power converter is disclosed. The multi-stage power converter includes at least one power source and at least one intermediate down-converter, the at least one intermediate down-converter configured to down convert a voltage output from the at least one power source to an intermediate voltage. The multi-stage power converter further includes one or more point of load converters configured to further convert the intermediate voltage to one or more component voltages applicable to one or more sets of processing components.

Abstract: A self-modulating diffuser for regulating the volume flow of conditioned air from a duct to a selected space, affording a high level of air mixing and sound performance combined with ready control of the space temperature comprises an adjustable square cone plaque-type ceiling diffuser with an outer cone for developing horizontal air flow, a square plaque for attachment to the outer cone and an inner dampening cone positioned intermediate the outer cone and square plaque. Separate first and second sensor means measure the temperature in the duct and in the room space, respectively, and direct digital control means respond to signals from the sensors to produce a control signal which operates an actuator mechanism for adjusting the position of the inner dampening cone.

Abstract: The disclosed invention is a photoelectric sensor that is capable of resolving difficult low contrast sensing tasks by adjustment of the sensor's light source intensity, so as to prevent dark state saturation and extend the overall dynamic range of the sensor. The photosensor utilizes an enhanced dynamic (EDR.TM.) control circuit that combines the light source and offset adjustment of the DC amplifier circuit in a closed loop configuration. This connection provides an automatic reduction in the light source intensity as required to avoid saturation. Further, this is accomplished without sacrificing amplifier gain, so that the dynamic operating range of the photosensor is extended to include proper operation at very bright light levels. The EDR control circuit also includes an indicator circuit that is connected to the light intensity control circuit.