Title:
【発明の名称】オンドホシヨウカイロ
Document Type and Number:
Japanese Patent JPS5845203
Kind Code:
B2
Abstract:
Crystal oscillators have been provided with a negative temperature characteristic capacitor to improve the frequency stability of the oscillator in the middle range of temperature, and have been provided with a voltage sensitive capacitor to improve the frequency stability of the oscillator in the cold and hot ranges of temperature. A temperature compensator is provided for varying the voltage applied to the voltage sensitive capacitor as a function of temperature. The temperature compensator has a middle temperature range circuit, a cold temperature range circuit, and a hot temperature range circuit which can stabilize the oscillator frequency to within plus or minus two parts per million (+/-2 ppm) over a temperature range between -40 DEG C and +85 DEG C.
Inventors:
EDOIN KAARUTON RAFUIATEI
Application Number:
JP8913474A
Publication Date:
October 07, 1983
Filing Date:
August 05, 1974
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
H03B5/04; H03B5/32; H03L1/02; (IPC1-7): H03B5/32; H03B5/04; H03L1/02
Attorney, Agent or Firm:
Tokunji Ikunuma