Low power startup circuits for voltage and current reference

linwu1999

Low power startup circuits for voltage and current reference with zero steady state current

carrotcarrot

reeeee

cheny1982

cheny1982

milk

:)

alex_bai

:'(

semico_ljj

ABSTRACT
A class of new startup circuits for Voltage and Current Reference
circuits are proposed. Unlike conventional startup circuits, the
proposed circuits completely turn off once the reference circuit is
started and consume no current during normal operation of the
reference circuits. The circuits employ feedback from the
reference circuit to ensure that the reference circuit has reached its
desired operating state prior to shutting themselves off. The
proposed circuits are quite useful in low power integrated circuit
design. Very low startup time can be achieved. The circuits are
generic in nature and can be used with any reference circuit such
as bandgap voltage reference, AVgs/R circuit, etc.

semico_ljj

REFERENCES
[I] Behzad Razavi, “Design of Analog CMOS integrated
Circuits”, Mc Graw Hill, page 400.
[ 2 ] Donald Y. Yu, Cypress Semiconductor Corporation, “Startup
Circuit for Band-Gap Reference circuit”, US Patent
5,867,013, Feb. 2, 1999.
[3] Norman Bujanos, Advanced Micro Devices, Inc., “Low
Power Circuit for disabling Startup Circuitry in a Voltage
Reference Circuit”, US Patent 5,949,227, Sept. 7, 1999.
[4] Mackay, W.E. Ethics, lies and videotape ... in Proceedings of
CHI ‘95 (Denver CO, May 1995), ACM Press, 138-145.
[5] Zabih Toosky, Infineon Technologies Corporation, “System
and Method for Low Power Start-up-Circuit for bandgap
voltage reference”, US Patent 6,084,388, Jul. 4, 2000.

semico_ljj

写的很不错！有启发！

asueee2

good paper, thanks.