A versatile Si-bipolar driver circuit with high output voltage swing for external and direct laser modulation in 10 Gb/s optical-fiber links

1994 ◽  
Vol 29 (9) ◽  
pp. 1014-1021 ◽  
Author(s):  
H.-M. Rein ◽  
R. Schmid ◽  
P. Weger ◽  
T. Smith ◽  
T. Herzog ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Output Voltage ◽  
Laser Modulation ◽  
Direct Laser ◽  
Driver Circuit ◽  
Fiber Links ◽  
Voltage Swing ◽  
High Output Voltage ◽  
Output Voltage Swing ◽  
High Output

scholarly journals Starter for Voltage Boost Converter to Harvest Thermoelectric Energy for Body-Worn Sensors

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4092
Author(s):  
Grzegorz Blakiewicz ◽  
Jacek Jakusz ◽  
Waldemar Jendernalik
Keyword(s):  
Threshold Voltage ◽  
Low Voltage ◽  
Boost Converter ◽  
Mos Transistors ◽  
Weak Inversion ◽  
Thermoelectric Energy ◽  
On Chip ◽  
Voltage Swing ◽  
High Output Voltage ◽  
High Output

This paper examines the suitability of selected configurations of ultra-low voltage (ULV) oscillators as starters for a voltage boost converter to harvest energy from a thermoelectric generator (TEG). Important properties of particularly promising configurations, suitable for on-chip implementation are compared. On this basis, an improved oscillator with a low startup voltage and a high output voltage swing is proposed. The applicability of n-channel native MOS transistors with negative or near-zero threshold voltage in ULV oscillators is analyzed. The results demonstrate that a near-zero threshold voltage transistor operating in the weak inversion region is most advantageous for the considered application. The obtained results were used as a reference for design of a boost converter starter intended for integration in 180-nm CMOS X-FAB technology. In the selected technology, the most suitable transistor available with a negative threshold voltage was used. Despite using a transistor with a negative threshold voltage, a low startup voltage of 29 mV, a power consumption of 70 µW, and power conversion efficiency of about 1.5% were achieved. A great advantage of the proposed starter is that it eliminates a multistage charge pump necessary to obtain a voltage of sufficient value to supply the boost converter control circuit.

Electronic-ionic polymer composite for high output voltage generation

2021 ◽  
pp. 109601
Author(s):  
Varij Panwar ◽  
Lokesh Singh Panwar ◽  
Gopinathan Anoop ◽  
Sukho Park
Keyword(s):  
Polymer Composite ◽  
Output Voltage ◽  
Ionic Polymer ◽  
Voltage Generation ◽  
High Output Voltage ◽  
High Output
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