Title:
PULSE INTEGRATION CIRCUIT
Document Type and Number:
Japanese Patent JP3156308
Kind Code:
B2
Abstract:
PURPOSE: To reduce a capacity for deciding a band by ANDing the outputs of positive phase output and negative phase output voltage follower type low- pass filters, inputting a pulse signal to the low-pass filter, and obtaining the integral voltage of the pulse signal in the output of an AND circuit.
CONSTITUTION: An integration circuit is constituted of a positive output voltage follower type low-pass filter 33, and a negative phase output voltage follower type low-pass filter 34 by a collector dot. When the pulse signal is inputted to a pulse signal input terminal 19, a signal having the same phase as the inputted pulse signal is outputted by the low-pass filter 33. On the other hand, the signal having a negative phase is outputted by the low-pass filter 34. At that time, the integration circuit is constituted of the low-pass filter 33 and the low-pass filter 34 by the collector dot, so that the mean value of the outputs of the low-pass filter 33 and the low-pass filter 34 can be outputted as the integral voltage of the pulse signal at an integral voltage output terminal 20.
Inventors:
Yoshio Watanabe
Tatsuaki Kitta
Tatsuaki Kitta
Application Number:
JP26777391A
Publication Date:
April 16, 2001
Filing Date:
October 16, 1991
Export Citation:
Assignee:
富士通株式会社
International Classes:
G06G7/184; H03K5/08; (IPC1-7): G06G7/184; H03K5/08
Domestic Patent References:
| JP62225024A | ||||
| JP63142712A | ||||
| JP5545224A | ||||
| JP63202114A |
Attorney, Agent or Firm:
Tetsuo Hirado