Nxp B.v.

Rinze Meijer

Cas Groot

Power switching is facilitated. In accordance with one or more embodiments, a power-switch apparatus includes a plurality of switches coupled between a voltage supply and a switched voltage output. A test control circuit operates the switches for testing a subset thereof, therein indicating a condition of the subset, which may be indicated independently from a condition of the power-switch apparatus as a whole. In some implementations, on-chip current loads are applied to emulate off-chip loads for testing the subset of switches, or individual switches.

Power-switch test apparatus and method

Body biasing circuit and methods are implemented in a variety of different instances. One such instance involves placing, a first well of a first body bias island and a second well of a second body bias island in a first bias mode by controlling switches of a body bias switch circuit. The biasing is one of a reverse body bias, a nominal body bias and a forward body bias. The second well is also biased according to one of a reverse body bias, a nominal body bias and a forward body bias. In response to the bias-mode input, the first well of the first body bias island and the second well of the second body bias island are each placed in a second bias mode by controlling switches of the body bias switch circuit. The bias of the first well and second well can be changed.

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Herkenbosch, Netherlands

Rinze Meijer