In this work, we report a SU-8-based fully integrated miniaturized inductively powered LC transponder for generic implantable wireless sensor applications. It consists of a 1 mm diameter octagonal spiral inductor and a micro fabricated MIM (metal insulator metal) capacitor. Polyvinylidene Fluoride–Trifluoroethylene (PVDF–TrFE) copolymer is applied as a dielectric material for the capacitor fabr...

Atlas is a facility being designed at Los Alamos National Laboratory (LANL) to perform high energy-density experiments in support of weapon-physics and basicresearch programs. It is designed to be an international user facility, providing experimental opportunities to researchers from national laboratories and academic institutions. For hydrodynamic experiments, it will be capable of achieving ...

In this paper, we present the concept and design of a time-to-voltage converter (TVC), and demonstrate its application to on-chip phase-locked loop (PLL) jitter measurement. The TVC operates in an analog, continuous mode without using a sampling clock. It compares the signal under measurement with a reference signal by charging and discharging a capacitor. First, the low-frequency reference sig...

Switched capacitor converters (SCCs) have been widely investigated and used in both academia industry for many years, ranging from low power (milliwatt level) to high (several kilowatt levels) a myriad of applications. SCCs offer several advantages, including the elimination inductor related magnetic design issues hence electromagnetic interference (EMI), better form factor or density, improved...

Recently the reduction of power consumption is one of the most important issues in the design of LSI circuits. Circuit designers quite commonly evaluate the power consumption on the basis of the “fact” that when we charge a capacitor C by a voltage source E or when we discharge the capacitor with the voltage E we consume the energy of 12CE . This “fact” can be verified typically for the simple ...

A method and system are proposed for a transient-free commutation of a resonant-mode array of inductors. A single capacitor is used to tune the entire array, and triacs are used to commutate the inductors. To avoid the transients, the tuning capacitor is electrically locked when it stores the whole energy of the excited circuit. This prevents the capacitor from discharge during the fast, 0.1 ms...

Switched-capacitor DC-DC converters are useful alternatives to inductor-based converters in many lowpower and medium-power applications. This work develops a straightforward analysis method to determine a switched-capacitor converter’s output impedance (a measure of performance and power loss). This resistive impedance is a function of frequency and has two asymptotic limits, one corresponding ...

Characterization was performed on 60 nm +/3 nm films of atomic layer deposition (ALD) hafnium dioxide (HfO2) and aluminum oxide (Al2O3), and plasma-enhanced chemical vapor deposition (PECVD) silicon nitride (Si3N4) as MIM capacitor dielectric for GaAs HBT technology. The capacitance density of MIM capacitor with ALD HfO2 (2.73 fF/m 2 ) and Al2O3 (1.55 fF/m 2 ) is significantly higher than tha...

Air bubbles have been detected in human circulation of end-stage renal disease patients who are treated by hemodialysis. The consequence of air embolism, air bubbles, is under recognized and usually overlooked in daily practice. This paper shows results of a capacitor based detection method that capable of detecting the presence of air bubbles in the blood stream in different frequencies. The m...