Charge sharing concept and new clocking scheme for power efficiency and electromagnetic emission improvement of boosted charge pumps
- Resource Type
- Periodical
- Authors
- Lauterbach, C.; Weber, W.; Romer, D.
- Source
- IEEE Journal of Solid-State Circuits IEEE J. Solid-State Circuits Solid-State Circuits, IEEE Journal of. 35(5):719-723 May, 2000
- Subject
- Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Computing and Processing
Clocks
Charge pumps
Parasitic capacitance
Capacitors
Circuits
Low voltage
Nonvolatile memory
Energy consumption
Tunneling
Charge transfer
- Language
- ISSN
- 0018-9200
1558-173X
A new power saving concept for boosted charge pumps is introduced, that combines two-step adiabatic switching, charge sharing and a simplified clocking scheme to double the power efficiency. Due to the charge charging the clock driver strengths can be reduced and therefore the peak value of the charging current is reduced by a factor of three. Further, the combination of tristate drivers and a new clocking scheme eliminates parasitic charge current peaks and together with the reduced current peaks the electromagnetic emission of the charge pump circuit is reduced significantly.