Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – By integrating
Patent
1999-02-19
2000-08-29
Nguyen, Matthew
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
By integrating
327538, 363 21, 365226, G06G 764
Patent
active
061114510
ABSTRACT:
A highly efficient compact multiple output voltage generation circuit is designed for use in integrated circuit devices such as DRAMs which require multiple internal voltage supplies for optimum performance. An oscillator is connected to a primary coil of a microtransformer. The microtransformer secondary coil has multiple taps one of which is connected to ground. A second transformer tap is connected to a transformer output node. The oscillating transformer output signal is capacitively coupled to a voltage rectifier. The input to the rectifier is biased to one diode drop below Vcc. The output of the rectifier is an internal supply voltage greater than ground. Another transformer tap is connected to a negative oscillation output node. The negative oscillating signal is rectified to produce a negative internal supply voltage. The voltage generation circuit operates effectively at low Vcc input levels where capacitor based voltage pumps often fail. The circuit is compatible with CMOS manufacturing processes.
REFERENCES:
patent: 3609446 (1971-09-01), Hursh
patent: 3851239 (1974-11-01), Suzuki
patent: 3934158 (1976-01-01), Shinozaki
patent: 3973220 (1976-08-01), Fender et al.
patent: 4306161 (1981-12-01), Sheinberg
patent: 5070317 (1991-12-01), Bhagat
patent: 5132891 (1992-07-01), Kobasyashi
patent: 5227659 (1993-07-01), Hubbard
patent: 5327333 (1994-07-01), Boylan et al.
patent: 5363289 (1994-11-01), Jacobs
patent: 5391977 (1995-02-01), Beland
patent: 5621348 (1997-04-01), Furutami et al.
patent: 5708357 (1998-01-01), Chen
patent: 5721506 (1998-02-01), Imam et al.
patent: 5909361 (1999-06-01), Kim
Imam Mohamed A.
Mullarkey Patrick J.
Micro)n Technology, Inc.
Nguyen Matthew
LandOfFree
Efficient VCCP supply with regulation for voltage control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Efficient VCCP supply with regulation for voltage control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient VCCP supply with regulation for voltage control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1253782