A half bridge GaN circuit is disclosed. The circuit includes a low side circuit, which has a low side switch, a low side switch driver configured to drive the low side switch, a first level shift circuit configured to receive a first level shift signal, and a second level shift circuit configured to generate a second level shift signal. The half bridge GaN circuit also includes a high side circuit, which has a high side switch configured to be selectively conductive according to a voltage level of a received high side switch signal, and a high side switch driver configured to generate the high side switch signal in response to the level shift signals. A transition in the voltage of the high side switch signal causes the high side switch driver to prevent additional transitions of the voltage level of the high side switch signal for a period of time.

A system may include a pre-charge stage and a voltage converter. The pre-charge stage may include a controller circuit configured to generate a control voltage and a current regulator electrically coupled to the controller circuit and configured to generate a first voltage, a second voltage, and a third voltage. The voltage converter may include a capacitor, a hold capacitor, and switches. The capacitor may include a first plate and a voltage on the first plate may be equal to the first voltage. The capacitor may include a second plate and a voltage on the second plate may be equal to the second voltage. The hold capacitor may include a plate and a voltage on the plate may be equal to the third voltage. The current regulator may be configured to regulate a current on the switches during accumulation of an initial charge on the capacitor and the hold capacitor.

A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.

A power domain change circuit includes an input circuit and an output circuit. The input circuit is suitable for operating in a first power domain and generating first and second intermediate processing signals. The output circuit is suitable for operating in a second power domain and generating a final output signal by averaging and combining transition jitter components of the first and second intermediate processing signals.

A device for synchronous serial data transmission over a differential data channel and a differential clock channel includes an interface controller having a clock generator, data controller, clock transmitter block and data receiver block. The clock generator generates a transmit clock signal which, during a data transmission cycle, includes a clock pulse train having a period. The clock generator is suitably configured such that, for data transmission cycles in a dynamic operating state in which a maximum occurring differential voltage of a differential clock signal is lower than a maximum differential voltage of the clock transmitter block, the clock generator sets a duration of a first clock phase of a first clock period of the clock pulse train to be longer than a first clock phase of following clock periods and shorter than a time duration required to reach the maximum differential voltage.

Disclosed are a Miller Clamp protection circuit, a driving circuit, a driving chip and an intelligent IGBT module, which are connected to a device to be driven. The Miller Clamp protection circuit comprises a main driving circuit configured to provide a driving signal; a Miller switch configured to reduce a voltage glitch; a Miller switch control circuit configured to automatically control an on and off of the Miller switch according to an intermediate signal of the main driving circuit. The main driving circuit is connected to a power supply, the Miller switch control circuit, one end of the Miller switch and the device to be driven, and another end of the Miller switch is grounded.

Multiple termination impedance values are provided in a switchable termination circuit so as to accommodate multiple transmission line characteristics. In one example, a termination matching circuit includes first and second nodes, a series interconnection of a first switch and a first impedance coupled between the first and second nodes, and another series interconnection of a second switch and a second impedance coupled between the first and second nodes. First and second control circuits respectively control the first and second switches such that a selectable impedance is provided between the first and second nodes through selective activation of the first and second switch devices by the first and second control circuits. In another example, additional nodes and resistors are provided to provide further termination impedance values.

Example embodiments of the present disclosure relate to a line driver apparatus. In some example embodiments, an apparatus is provided. The apparatus includes a capacitive feed-through module and a driving module. The capacitive feed-through module includes a first pre-driver operable to receive input differential signals and delayed signals of the input differential signals, generate first drive signals from the input differential signals and the delayed signals, and equalize the first drive signals. The capacitive feed-through module also includes a capacitance reducing module arranged between the first pre-driver and transmission lines and operable to reduce parasitic capacitance at the transmission lines in response to the first drive signals. The driving module is coupled to the transmission lines and operable to generate output differential signals from the input differential signals for transmission on the transmission lines.

An overcurrent detection circuit, which detects overcurrent of a load driving device arranged to drive a capacitance load by switching a voltage applied to the capacitance load between high level and low level, includes a clock signal generation unit arranged to generate a clock signal, a comparing unit arranged to compare a physical quantity corresponding to current supplied from the load driving device to the capacitance load with a predetermined value, and a determination unit arranged to determine whether or not the load driving device is in an overcurrent state based on the clock signal and a result of the comparison by the comparing unit, during a period in which the load driving device applies a high level voltage to the capacitance load.

A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.