Ultra low-power regulator for biomedical implant

Voltage regulators supply a steady voltage supply with low output resistance, given a voltage reference (with high output resistance) and an unreliable/unsteady voltage supply (with low output resistance). A problem of (kinear) regulators is that they are wasting quite a bit of power. The alternative are switching regulators, but those do often require a clock signal. 

 

Both designs are not optimal for our target application: a wirelessly powered micro-implant. the loss of a linear regulator is highly unfortunate, but there is no power during the startup phase of the wireless power transmission to supply a clock of any sorts.

 

Thus, this project shall investigate compromises of classical approaches or novel designs for regulators / power amplifiers with ultra low standby consumption and low slew rate to minimize ripple in the regulated power supply of a blood sugar implant

Publisert 24. sep. 2012 15:55

Veileder(e)

Omfang (studiepoeng)

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