Title:
ELECTRONIC DEVICE, LOAD VARIATION COMPENSATING CIRCUIT, POWER SUPPLY APPARATUS, AND TESTING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2007/037110
Kind Code:
A1
Abstract:
A load variation compensating circuit comprises a first delay circuit part that varies
in delay amount by a predetermined first variation amount relative to a unit variation
amount of a power supply voltage supplied to an operating circuit and that delays
a given clock signal; a second delay circuit part that is disposed in parallel
with the first delay circuit part, varies in delay amount by a second variation
amount, which is greater than the first variation amount, relative to the unit
variation amount of the power supply voltage supplied to the operating circuit
and that delays the given clock signal; a load circuit that is connected in parallel
with the operating circuit with respect to a common power supply wiring; and a
phase determining part that determines a phase difference between the clock signal
outputted from the first delay circuit part and the clock signal outputted from
the second delay circuit part and that controls, based on the phase difference, the
amount of current consumed by the load circuit.
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Inventors:
SUDA MASAKATSU (JP)
Application Number:
PCT/JP2006/317825
Publication Date:
April 05, 2007
Filing Date:
September 08, 2006
Export Citation:
Assignee:
ADVANTEST CORP (JP)
SUDA MASAKATSU (JP)
SUDA MASAKATSU (JP)
International Classes:
H03K19/00; H03K19/0948
Foreign References:
| JPH08130449A | 1996-05-21 | |||
| JP2003124795A | 2003-04-25 | |||
| JP2003258617A | 2003-09-12 |
Attorney, Agent or Firm:
RYUKA, Akihiro (22-1 Nishi-Shinjuku, 6-chom, Shinjuku-ku Tokyo 05, JP)
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