Title:
【発明の名称】圧電変圧回路
Document Type and Number:
Japanese Patent JP2003503185
Kind Code:
A
Abstract:
The invention relates to a piezo-electric transformer circuit (200) incorporating a piezo-electric transformer (10) comprising a multi-element primary region (12) and a single element secondary region (14) mutually joined together. In operation, the circuit (200) applies a drive signal to the primary region (12) to excite the primary and secondary regions (12, 14) into longitudinal resonance, thereby generating a high potential signal at the secondary region (14). The drive signal is derived from the signal at the secondary region (14) in a self oscillating feedback loop configuration. The configuration provides the advantage that the transformer (10) is driven more accurately at its resonant frequency, thereby improving efficiency of the circuit (200) when the secondary region (14) is electrically loaded.
Inventors:
Throwaway Anthony John
Mirror caroline elizabeth
Mirror caroline elizabeth
Application Number:
JP2001506626A
Publication Date:
January 28, 2003
Filing Date:
June 22, 2000
Export Citation:
Assignee:
Marconi Caswell Limited
International Classes:
B06B1/06; H01L41/04; H01L41/107; H02N2/00; (IPC1-7): B06B1/06; H02N2/00
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)