Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1996-06-20
1997-10-07
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327589, 327178, 327306, 327299, H03K 301, H03K 19094
Patent
active
056752792
ABSTRACT:
A voltage stepup circuit having a plurality of setup circuit units connected in stages between an input voltage node and a stepup voltage node. Each circuit unit comprises at least two first and second MOS transistor T1 and T2. Each of first stepup capacitors is connected between a first clock signal supply node and a first connection node at which the drain and gate of a corresponding one of odd-numbered MOS transistors, of a plurality of MOS transistors connected in series through the plurality of stepup circuit units, are connected together. Each of second stepup capacitors is connected between a second connection node at which the drain and gate of a corresponding one of even-numbered MOS transistors of the plurality of MOS transistors connected together and a second clock signal supply node for supplying said second connection node with a second clock signal whose pulse width does not overlap in time with that of the first clock signal. A first clock amplitude control circuit limits the amplitude of the first clock signal to be supplied to the first clock signal supply node to a predetermined level and applies the first amplitude-limited clock signal to the first clock signal supply node. A second clock amplitude control circuit limits the amplitude of the second clock signal to be supplied to the second clock signal supply node to a predetermined level and applies the second amplitude-limited clock signal to the second clock signal supply node.
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"On-Chip High-Voltage Generation in MNOS Integrated Circuits Using an Improved Voltage Multiplier Technique" Dickson, J.F., IEEE Journal of Solid-State Circuits, vol. SC-11, No. 3, Jun. 1976, pp. 374-378.
Fujimoto Takuya
Hirata Yoshiharu
Callahan Timothy P.
Kabushiki Kaisha Toshiba
Lam T.
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