Title:
【発明の名称】いくつかの入力電圧の中の極値電圧を供給するための回路
Document Type and Number:
Japanese Patent JP2829361
Kind Code:
B2
Abstract:
The circuit produces the extreme voltage (Vmax) of several input voltages. For each input, a bipolar transistor (Q10,Q10') with the input voltage applied to its base. Its emitter is connected to a common output, providing the extreme voltage. A current source (22,24) polarises the transistor emitter. The transistor current is maintained constant. Each input voltage (V1) may have a switch (Q12,Q13) to disconnect the first source from the first transistor when not conducting. A second similar transistor (Q11) may be connected in parallel, base and collector to first transistor, with emitter connected to a second voltage (GND, 20), half the first supply. A third transistor (Q12) may be connected collector to first emitter and base to second emitter, with a fourth (Q13) as a differential.
Inventors:
KURASU BAN ZARINJU
SAAJI ENBERU
SAAJI ENBERU
Application Number:
JP33174995A
Publication Date:
November 25, 1998
Filing Date:
December 20, 1995
Export Citation:
Assignee:
ESU TEE MIKUROEREKUTORONIKUSU SA
International Classes:
H03K17/00; G01R19/00; (IPC1-7): H03K17/00
Domestic Patent References:
| JP6234416A | ||||
| JP3119770U |
Other References:
【文献】米国特許3348072(US,A)
Attorney, Agent or Firm:
Fukami Hisaro (3 outside)