Doubler la métaphysique

Fully digital clock frequency doubler

This paper presents a clock frequency doubler, having the function of automatic adjustable duty cycle without feedback loops. The duty cycle amount can be automatically adjustable using digitized delay block and a counter. This simplifies the design structure and allows the circuit to operate over a wide range of input frequency variation. The simulation results show that this frequency doubler...

A Comparison of AC/DC Piezoelectric Transformer Converters with Current Doubler and Voltage Doubler Rectifiers

The objective of this study was to develop recommendations for an optimal design of PT AC/DC converters. The paper presents a comprehensive comparison of the two commonly used rectifier topologies in a piezoelectric transformer (PT) based power converters: current doubler and voltage doubler rectifiers. The advantages and disadvantages of the two rectifiers were investigated and the area of the...

Energy doubler for a linear collider

The concept of using short plasma sections several meters in length to double the energy of a linear collider just before the collision point is proposed and modeled. In this scenario the beams from each side of a linear collider are split into pairs of microbunches with the first driving a plasma wake that accelerates the second. The luminosity of the doubled collider is maintained by employin...

Millimeter-Wave Diode-Grid Frequency Doubler

Abstruct-Monolithic diode grids have been fabricated on 2-cm square gallium-arsenide wafers in a proof-of-principle test of a quasi-optical varactor millimeter wave frequency multiplier array concept. An equivalent circuit model based on a transmission-line analysis of plane wave illumination was applied to predict the array performance. The doubler experiments were performed under far-field il...

Etude sur la digestion pancratique de la caseine pour la production de la toxine tetanique