Abstract: Techniques are provided for adapting a bias provided to a radio frequency (RF) power amplifier (PA), so as to achieve linear operation over a wide range of conditions. The techniques use open-loop temperature compensation based upon a sensed current during periods when the RF PA is active and inactive. A closed-loop control technique is enabled when the RF PA is inactive. The combined control techniques compensate for temperature variation as well as long-term drift of the semiconductor properties of the devices within the RF PA.

Abstract: A switching circuitry is configured to provide, during an ON-State, a connection between a first port and second port and to electrically disconnect, during an OFF-State, the first port from the second port. The switching interface comprises a first and a second cascode transistor element having an applicable operational voltage and comprising a control terminal, wherein the first cascode transistor element is connected with the first port of the switching interface and wherein the second cascode transistor element is connected with the second port of the switching interface. The switching interface comprises a switching transistor element, having the applicable operational voltage and comprising a third control terminal, the switching transistor element being serially connected the first and second cascode transistor elements.

Abstract: In one example, a method includes outputting, by a power supply and across a supply node and a ground node, a supply power signal; and selectively outputting, by a driver, a power signal to a second terminal of a light emitting element that has a first terminal and the second terminal, wherein the first terminal of the light emitting element is coupled to a load node, wherein a supply terminal of the driver is coupled to the supply node, wherein a ground terminal driver is coupled to the ground node, and wherein a difference between a potential of the supply node and a potential of the ground node is less than an activation voltage of the light emitting element.

Abstract: Disclosed herein are embodiments of a precharge sample-and-hold circuit. The circuit has an input terminal, a reference voltage terminal and an output terminal. Further, the circuit has a sampling capacitance coupled between the input terminal and the reference voltage terminal and configured to provide the sample voltage when said sample-and-hold circuit is in a holding mode and a cancellation capacitance. Implementations of a precharge sample-and-hold circuit and of methods to operate a precharge sample-and-hold circuit in an analog/digital converter are also disclosed.

Abstract: Oscillator devices and corresponding methods are disclosed. In some embodiments an apparatus includes an oscillator circuit arrangement, a frequency variable resistor circuit coupled to an output of the oscillator circuit arrangement and a reference resistor circuit. The apparatus further includes a sample and hold circuit, wherein a first input of the sample and hold circuit is coupled to an output of the reference resistor circuit and a second input of the sample and hold circuit is coupled to an output of the frequency variable resistor circuit, wherein an output of the sample and hold circuit is coupled with an input of the oscillator circuit arrangement.

Abstract: An electronic switch includes a load path connected in series with the load and a drive terminal for receiving a drive signal. The electronic switch is operable to switch between a first operation state and a second operation state dependent on the drive signal. In a first switching cycle, the electronic switch is switched from the first operation state to the second operation state and a voltage across the load is evaluated during the first switching cycle in order to obtain a measured switching profile. The measured switching profile is compared with a reference profile. A drive profile dependent on the comparison is provided. The drive profile is used to drive the electronic switch in a second switching cycle after the first switching cycle. At least two drive parameters are used at different times in the at least one second switching cycle to drive the electronic switch.

Abstract: Disclosed herein are embodiments of a precharge sample-and-hold circuit. The circuit has an input terminal, a reference voltage terminal and an output terminal. Further, the circuit has a sampling capacitance coupled between the input terminal and the reference voltage terminal and configured to provide the sample voltage when said sample-and-hold circuit is in a holding mode and a cancellation capacitance. Implementations of a precharge sample-and-hold circuit and of methods to operate a precharge sample-and-hold circuit in an analog/digital converter are also disclosed.

Abstract: A method is disclosed. An analog signal is sampled to form a sample value using a sample and hold circuit. The sample value is converted to form a first digital result. The sample value is converted to form a second digital result.

Abstract: A method is disclosed. An analog signal is sampled to form a sample value using a sample and hold circuit. The sample value is converted to form a first digital result. The sample value is converted to form a second digital result.

Abstract: Oscillator devices and corresponding methods are disclosed. In some embodiments an apparatus includes an oscillator circuit arrangement, a frequency variable resistor circuit coupled to an output of the oscillator circuit arrangement and a reference resistor circuit. The apparatus further includes a sample and hold circuit, wherein a first input of the sample and hold circuit is coupled to an output of the reference resistor circuit and a second input of the sample and hold circuit is coupled to an output of the frequency variable resistor circuit, wherein an output of the sample and hold circuit is coupled with an input of the oscillator circuit arrangement.

Abstract: An electronic switch includes a load path connected in series with the load and a drive terminal for receiving a drive signal. The electronic switch is operable to switch between a first operation state and a second operation state dependent on the drive signal. In a first switching cycle, the electronic switch is switched from the first operation state to the second operation state and a voltage across the load is evaluated during the first switching cycle in order to obtain a measured switching profile. The measured switching profile is compared with a reference profile. A drive profile dependent on the comparison is provided. The drive profile is used to drive the electronic switch in a second switching cycle after the first switching cycle. At least two drive parameters are used at different times in the at least one second switching cycle to drive the electronic switch.

Abstract: A method is provided that comprises determining an amount of a first current from an amount of a charge stored in a first capacitor. Also, an apparatus is provided that comprises a reference timer circuit configured to generate a first signal indicating an expiration of a time period, and a sense circuit comprising a first capacitor and configured to sense, responsive to the first signal, a charge stored in the first capacitor, and to generate a second signal representing the sensed charge.

Abstract: A method is provided that comprises determining an amount of a first current from an amount of a charge stored in a first capacitor. Also, an apparatus is provided that comprises a reference timer circuit configured to generate a first signal indicating an expiration of a time period, and a sense circuit comprising a first capacitor and configured to sense, responsive to the first signal, a charge stored in the first capacitor, and to generate a second signal representing the sensed charge.