The switch is controlled by a buffer controller.

This chip level built-in circuit includes a clock generation macro unit, a simple duty cycle correction (DCC) circuit, an array slice and built-in self test unit, and a DCC circuit controller.

The satellite structures include a hermetically sealed integrated circuit controller operatively coupled to one or more electrodes.

A control circuit for a coiled tubing injector includes a circuit controller (14).

The microcomputer (100) is provided with an inverter circuit controller (110), a main relay switching controller (120), a waveform forced cutoff unit (130), and a cutoff signal output unit (140).

Results of a built-in self test, i.e. pass or fail, of an array are provided to the DCC circuit controller.