Title:
STORAGE APPARATUS AND METHOD FOR CONTROLLING STORAGE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2006/129339
Kind Code:
A1
Abstract:
The conduction/non-conduction control of a first switch circuit (T1) is periodically performed in accordance with an error amplifying circuit (A1), thereby discharging a power, which has been stored from an input voltage (VIN) into an inductance circuit (L1), to a memory cell array (11) via a rectifying circuit (D1) to supply a bias voltage (VPP) that has been boosted up to a set value. At this moment, a voltage adjusting part (13) directly adjusts the voltage value of the bias voltage (VPP) by operating the error amplifying circuit (A1) of a boosted voltage supplying part (12) in accordance with counter information (COUNT) and positional information (AD) of target memory cells to which the bias voltage (VPP) is to be applied. In this way, even if the storage capacity is to be enlarged, a bias voltage, which has been boosted by a sufficient supply capability, can be supplied to the memory cell array. Moreover, the set voltage can be adjusted in accordance with the positions of target memory cells, thereby supplying thereto the suitable boosted voltage regardless of the positions and number of the target memory cells.
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Inventors:
ARAKAWA HIDEKI (JP)
Application Number:
PCT/JP2005/009860
Publication Date:
December 07, 2006
Filing Date:
May 30, 2005
Export Citation:
Assignee:
SPANSION LLC (US)
SPANSION JAPAN LTD (JP)
ARAKAWA HIDEKI (JP)
SPANSION JAPAN LTD (JP)
ARAKAWA HIDEKI (JP)
International Classes:
G11C16/30; H02M3/155
Domestic Patent References:
| WO2002003389A1 | 2002-01-10 |
Foreign References:
| JP2004110871A | 2004-04-08 | |||
| JP2004319367A | 2004-11-11 | |||
| JPH1131391A | 1999-02-02 | |||
| JPH0684797U | 1994-12-02 | |||
| JP2000276888A | 2000-10-06 | |||
| JPH09215314A | 1997-08-15 | |||
| JPH1139885A | 1999-02-12 | |||
| JP2003319645A | 2003-11-07 | |||
| JPH0721791A | 1995-01-24 |
Attorney, Agent or Firm:
Cosmos, Patent Office (Nagoya Center Building 2-22, Nishiki 2-chome, Naka-k, Nagoya-shi Aichi 03, JP)
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