Title:
振幅レベル制御回路
Document Type and Number:
Japanese Patent JP2006520146
Kind Code:
A
Abstract:
Amplitude level control circuit for an oscillator comprising first means arranged to generate a first current for driving the oscillator; and second means arranged to generate a second current such that in direct current conditions the second current is arranged to be a predetermined ratio of the first current, wherein the second current is arranged to be added to a reference current to form a feedback current such that in direct current conditions the first current is determined by the reference current, the ratio of the feedback current and first current and the ratio of the first current and second current, wherein the second means is further arranged to reduce the second current as oscillations of the oscillator increase, thereby reducing the first current.
Inventors:
Maedel, heinz
Application Number:
JP2006505430A
Publication Date:
August 31, 2006
Filing Date:
February 24, 2004
Export Citation:
Assignee:
Freescale Semiconductor, Inc.
International Classes:
H03B5/36; H03B5/06; H03B5/32
Domestic Patent References:
| JPS5176951A | 1976-07-03 | |||
| JPH11298248A | 1999-10-29 | |||
| JPS5580126A | 1980-06-17 | |||
| JPH08227283A | 1996-09-03 | |||
| JPS5176951A | 1976-07-03 | |||
| JPH11298248A | 1999-10-29 | |||
| JPS5580126A | 1980-06-17 | |||
| JPH08227283A | 1996-09-03 |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita