scholarly journals Design of a Novel Current Mode Charge Pump for Very-Low-Voltage Applications in 130 nm SOI-BCD Technology

2021 ◽  
Vol 15 ◽  
pp. 461-469
Author(s):  
Mounir Ouremchi ◽  
Karim El Khadiri ◽  
Ahmed Tahiri ◽  
Hassan Qjidaa
Keyword(s):  
Low Voltage ◽  
Charge Pump ◽  
Current Mode ◽  
Maximum Efficiency ◽  
Chip Area ◽  
Current Mode Control ◽  
Mode Control ◽  
Error Amplifier ◽  
Soft Start ◽  
Power Switches

A novel charge pump with current mode control suitable to work under a very-low-voltage supply is proposed in this paper. The proposed charge pump consists of two sections. The first section is a power switches stage which consists of seven cascaded DEPMOS power switches. The second section is a low voltage stage which consists of a Low Voltage Level Shifter, Current Mode control, Follower Amplifier, Error Amplifier, Soft Start Comparator, and Skip mode & Over Voltage Comparator. The charge pump has been designed, simulated, and layout in Cadence using TSMC 130 nm SOI technology with LDMOS transistors, which have very low on-resistance. The input range of the charge pump is 2.7– 4.4 V, and it can supply up to 100 mA load current. The maximum efficiency is 90%, and the chip area is only 0.597 mm².

Current Mode Control of Fuel Cell Fed Interleaved Boost Converter for Ripple Current Minimization

2011 ◽  
Author(s):  
K. Latha ◽  
M. Maadhuri ◽  
B. Uma Maheswari ◽  
N. Rajalakshmi ◽  
K. S. Dhathathreyan
Keyword(s):  
Fuel Cell ◽  
Low Voltage ◽  
Life Time ◽  
Current Mode ◽  
Load Level ◽  
Boost Converters ◽  
Current Mode Control ◽  
Mode Control ◽  
Input Side ◽  
Interleaved Boost Converter

Fuel cells normally supply high current at low voltage. Hence they need to be integrated with boost converters to supply load at elevated voltages. Boosting of voltage at the load level amplifies the effect of ripple in load current at the input side. The life time of fuel cell catalyst reduces with the increase in current ripple. This paper proposes an effective solution to reduce the ripple with the use of interleaved boost converters and non-linear carrier based current mode control. Performance of the controller has been tested in simulation and validated through experimentation on a 1.2kW fuel cell stack for wide variations in load and fuel flow conditions. It is observed that, compared to other control techniques, the proposed controller has better dynamic response and it does not need any complex multiplier or divider circuit for its implementation. A prototype rated 1.2 KW has been built and tested.

A novel CMOS charge-pump circuit with current mode control 110 mA at 2.7 V for telecommunication systems

2010 ◽  
Vol 31 (4) ◽  
pp. 045001 ◽  
Author(s):  
Salahddine Krit ◽  
Hassan Qjidaa ◽  
Imad El Affar ◽  
Yafrah Khadija ◽  
Ziani Messghati ◽  
...  
Keyword(s):  
Charge Pump ◽  
Current Mode ◽  
Current Mode Control ◽  
Mode Control ◽  
Telecommunication Systems ◽  
Charge Pump Circuit

scholarly journals Nonlinear Current-Mode Control of SCIG Wind Turbines

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 55
Author(s):  
Nicholas Hawkins ◽  
Bhagyashri Bhagwat ◽  
Michael L. McIntyre
Keyword(s):  
Current Mode ◽  
Nonlinear Controller ◽  
Flux Observer ◽  
Current Mode Control ◽  
Mode Control ◽  
Squirrel Cage ◽  
Control Scheme ◽  
Control Schemes ◽  
Rotor Flux ◽  
Squirrel Cage Induction Generator

In this paper, a nonlinear controller is proposed to manage the rotational speed of a full-variable Squirrel Cage Induction Generator wind turbine. This control scheme improves upon tractional vector controllers by removing the need for a rotor flux observer. Additionally, the proposed controller manages the performance through turbulent wind conditions by accounting for unmeasurable wind torque dynamics. This model-based approach utilizes a current-based control in place of traditional voltage-mode control and is validated using a Lyapunov-based stability analysis. The proposed scheme is compared to a linear vector controller through simulation results. These results demonstrate that the proposed controller is far more robust to wind turbulence than traditional control schemes.

Sign in / Sign up

Export Citation Format

Share Document