Building a Fast and Power Efficient Inductive Charge Pump System for 3D Stacked Phase Change Memories

2017 ◽  
Author(s):  
Lei Jiang ◽  
Sparsh Mittal ◽  
Wujie Wen
Keyword(s):  
Phase Change ◽  
Charge Pump ◽  
Pump System ◽  
Power Efficient ◽  
Inductive Charge

scholarly journals The Design of a Charge Pump Circuit and System with Input Impedance Modulation for a Flexible-Type Thermoelectric Generator with High-Output Impedance

Electronics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1212
Author(s):  
Kazuma Koketsu ◽  
Toru Tanzawa
Keyword(s):  
Input Impedance ◽  
Thermoelectric Generator ◽  
Charge Pump ◽  
Operating Voltage ◽  
Output Impedance ◽  
Two Phase ◽  
Pump System ◽  
High Output Impedance ◽  
A Charge ◽  
High Output

This paper describes a charge pump system for a flexible thermoelectric generator (TEG). Even though the TEG has high-output impedance, the system controls the input voltage to keep it higher than the minimum operating voltage by modulating the input impedance of the charge pump using two-phase operation with low- and high-input impedance modes. The average input impedance can be matched with the output impedance of the TEG. How the system can be designed is also described in detail. A design demonstration was performed for the TEG with 400 Ω. The fabricated system was also measured with a flexible-type TEG based on carbon nanotubes. Even with an output impedance of 1.4 kΩ, the system converted thermal energy into electric power of 30 μW at 2.5 V to the following sensor ICs.

A Power Efficient Regulated Charge Pump Based on Charge Sharing for Contactless Devices: An Alternative to Four-Phase Charge Pumps

2017 ◽  
Vol 13 (4) ◽  
pp. 595-604
Author(s):  
W. Steve Ngueya ◽  
Jean-Michel Portal ◽  
Hassen Aziza ◽  
Julien Mellier ◽  
Stephane Ricard
Keyword(s):  
Charge Pump ◽  
Charge Sharing ◽  
Power Efficient ◽  
Charge Pumps

scholarly journals Tailoring Transient‐Amorphous States: Towards Fast and Power‐Efficient Phase‐Change Memory and Neuromorphic Computing

2014 ◽  
Vol 26 (44) ◽  
pp. 7493-7498 ◽  
Author(s):  
Tae Hoon Lee ◽  
Desmond Loke ◽  
Ke‐Jie Huang ◽  
Wei‐Jie Wang ◽  
Stephen R. Elliott
Keyword(s):  
Phase Change ◽  
Phase Change Memory ◽  
Neuromorphic Computing ◽  
Power Efficient ◽  
Amorphous States ◽  
Change Memory
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