scholarly journals A perfectly current matched charge pump with wide dynamic range for ultra low voltage applications

2014 ◽  
Vol 11 (23) ◽  
pp. 20140993-20140993 ◽  
Author(s):  
Dongdong Zhong ◽  
Yan Han ◽  
Jun Sun ◽  
Qian Zhou ◽  
Ray C. C. Cheung ◽  
...  
1994 ◽  
Author(s):  
Kim Strohbehn ◽  
Bernard Kluga ◽  
David M. Rust

2000 ◽  
Vol 35 (12) ◽  
pp. 1917-1926 ◽  
Author(s):  
J.P. Maligeorgos ◽  
J.R. Long

2019 ◽  
Vol 33 (14n15) ◽  
pp. 1940045
Author(s):  
Sujito ◽  
Huu-Duy Tran ◽  
You-Cyuan Wei ◽  
Hung-Yu Wang

A novel cascode current mirror for low-voltage application with larger input dynamic range is presented. The proposed mirror circuit combines the advantages of wide input swing, wide output swing and large output resistance capability. It is suitable for low-voltage and low-power application. Simulation results show that the circuit work properly for the input current ranges of 10 [Formula: see text]A to 1 mA and bandwidth is 5.02 GHz for 1 mA DC component.


2014 ◽  
Vol 573 ◽  
pp. 242-247 ◽  
Author(s):  
K.V. Sainath ◽  
G. Prabhakar ◽  
S. Selvaperumal

In this Proposal, a new current conveyor based analog PID controller is designed. The second generation current conveyor circuit (CCII+) is used, because of its low voltage, low power characteristics and wide dynamic range of application. The current conveyor based analog PID controller was designed and verified by using Proteus Design Suite. The transfer function of the entire circuit is verified by using MATLAB-SIMULINK environment and the experimental results show that the new CCII+ based PID controller performs as like as that of conventional operational amplifier based PID controller. To verify the feasibility of the circuit, a well known Ziegler Nichols tuning rule is applied.


Author(s):  
F. Ouyang ◽  
D. A. Ray ◽  
O. L. Krivanek

Electron backscattering Kikuchi diffraction patterns (BKDP) reveal useful information about the structure and orientation of crystals under study. With the well focused electron beam in a scanning electron microscope (SEM), one can use BKDP as a microanalysis tool. BKDPs have been recorded in SEMs using a phosphor screen coupled to an intensified TV camera through a lens system, and by photographic negatives. With the development of fiber-optically coupled slow scan CCD (SSC) cameras for electron beam imaging, one can take advantage of their high sensitivity and wide dynamic range for observing BKDP in SEM.We have used the Gatan 690 SSC camera to observe backscattering patterns in a JEOL JSM-840A SEM. The CCD sensor has an active area of 13.25 mm × 8.83 mm and 576 × 384 pixels. The camera head, which consists of a single crystal YAG scintillator fiber optically coupled to the CCD chip, is located inside the SEM specimen chamber. The whole camera head is cooled to about -30°C by a Peltier cooler, which permits long integration times (up to 100 seconds).


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