Even when there is limit placed upon transmission power control time, the transmission power control method enables accurate control transmission power. The multi-CCC current source model includes a voltage waveform transfer function, a voltage dependent current source, and an output capacitor. The output of the differential amplifier may be connected to a set of cascaded digital invertersbuffers, and an output of each digital buffer may be connected to the control terminal of a feedback transistor. This eliminates the need for invasive liposuction and the trauma associated with invasive liposuction. The invention finds particular application in the field of transferring monetary value from a sender to a recipient.