Patent · US Expired

Voltage ramp rate control circuit

US5945870A · kind A · utility

77Cited by
6References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 16, 1997
Grant dateAug 31, 1999
Priority date
Expiry dateJan 16, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C16/30
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Various embodiments for controlling a ramp rate of a high voltage generator circuit such as a charge pump circuit are disclosed. In one embodiment the ramp rate of the output signal is controlled by modulating an amplitude of the oscillating signal at the input of the charge pump circuit. In another embodiment, the ramp rate is controlled by modulating the current loading at the output of the charge pump circuit. In yet another embodiment, the ramp rate of the output signal is controlled by modulating the frequency of the oscillating signal at the input of the charge pump circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.