Patent ID: 8729772
Filing Date: 2014-05-20
Classification: B06B,H01L

Abstract:
1. A swept side band driver circuit comprising: A full wave rectifier responsive to voltage from an ac mains source for providing a full wave rectified voltage (FWRV), a boost converter circuit coupled to the full wave rectified voltage (FWRV) for providing a boosted dc voltage (HVA) and improved power factor, a buck converter circuit coupled to receive the boosted dc voltage (HVA) for providing a buck output voltage (BOV), and being responsive to an output power control signal (OPCS) for adjusting the value of the buck output voltage (BOV), a frequency modulating drive circuit for providing a frequency modulated drive signal (FMDS), and a full wave bridge circuit responsive to the frequency modulated drive signal FMDS) and to the buck output voltage (BOV) for providing a buffered frequency modulated output drive signal (BFMDS), a power output and load circuit responsive to the buffered frequency modulated output drive signal (BFMDS) for providing a drive signal to a PZT load.