Nxp Usa, Inc.

Denis Sergeevich Shuvalov

A receiver circuit, comprising: an receiver-input-terminal configured to receive input-signalling; an receiver-output-terminal configured to provide output-signalling; a plurality of sub-receivers, each configured to compare the received input-signalling with a different effective threshold value in order to provide a digital sub-receiver-output-signal, wherein the different effective threshold values have weighted values in a sequence between a least significant value and a most significant value; a controller configured to, in response to detecting calibration-signalling at the receiver-input-terminal: process the digital sub-receiver-output-signals in order to identify the sub-receiver with the most significant effective threshold value that is triggered by the calibration-signalling as a triggered-sub-receiver; identify a preceding-sub-receiver as the sub-receiver that has an effective threshold value that is before that of the triggered-sub-receiver in the sequence of weighted effective threshold values; and configure the receiver circuit such that, for subsequent signal processing, the sub-receiver-output-signal from the preceding-sub-receiver is provided to the receiver-output-terminal.

Receiver circuit

An error amplifier circuit for a DC-DC power converter controller is disclosed for providing an amplified error signal to a switch control circuit, the circuit comprising an error amplifier first stage. The first stage comprises: a first input terminal for receiving a voltage proportional to an output voltage of the converter; an output node; a first operational transconductance amplifier in a first path between the input terminal and the output node and having a first input connected to the input terminal, a second input connectable to a reference signal, and an output connected to the output node; and a second, parallel, path comprising a series combination of an amplifier, a second OTA and a capacitor. The second OTA has an output connected to the capacitor, a first input connected to an output of the amplifier, and a second input connected to the output. Associated control circuits, controllers and converters are also disclosed.

Error amplifier circuits for DC-DC converters, DC-DC converters and controllers

There is described a pulse-triggered level shifter circuit comprising: i) a command circuit configured to shift a command input signal of a first voltage domain to a command output signal of a second voltage domain, the command circuit comprising: a) a command input stage for receiving the command input signal, and b) a command output stage for providing the command output signal; and ii) a feedback circuit coupled to the command circuit and configured to shift a feedback input signal of a third voltage domain to a feedback output signal of a forth voltage domain, the feedback circuit comprising: c) a feedback input stage for receiving the command output signal as the feedback input signal, and d) a feedback output stage for providing the feedback output signal. The command circuit and the feedback circuit are hereby integrated into one single level shifter circuit.

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Munich, Germany

Denis Sergeevich Shuvalov