Title:
【発明の名称】ランプ電圧発生器の自動較正システム
Document Type and Number:
Japanese Patent JP2629077
Kind Code:
B2
Abstract:
An automatic calibration for a ramp voltage generator includes a ramp voltage generator circuit responsive to a clock signal for providing a ramp voltage during a ramp voltage period; a comparator responsive to the ramp voltage for indicating whether the ramp voltage has reached a predetermined reference voltage level in the ramp voltage period; and a ramp rate control circuit responsive to the comparator for adjusting the ramp voltage generator circuit to drive the ramp voltage to obtain the predetermined reference voltage level in the ramp voltage period.
Inventors:
Edward Perry, Jordan
Application Number:
JP50071493A
Publication Date:
July 09, 1997
Filing Date:
May 24, 1993
Export Citation:
Assignee:
Analog devices ink
International Classes:
G01R31/316; G01R19/165; H03K3/0231; H03K4/08; H03K4/502; (IPC1-7): G01R31/316
Attorney, Agent or Firm:
Masatake Shiga (2 outside)