The invention forms conductive tracks in electronics and microelectronics for the commutation of electronic circuits and semiconductor devices. A fluctuation is applied to the control of an output current or power related to the discharge lamp which is carried out for the ON period of the switching element, thereby changing a switching frequency. The subset and parent PHYs can have a fundamental relationship that enables synchronous switching between them depending on the link utilization state. The starting position for the mask, and thereby the ultimate width of the mask, may be dynamically calculated for any configuration of menu elements regardless of number and length of menu elements in a looping menu. {dot over }In one embodiment, two or more mass spectra are recorded and are combined to obtain a fingerprint of the mixture. The invention can also react when a shock-producing impact is imminent by repositioning the Payload away from the impact site.