#### Filter Results:

- Full text PDF available (0)

#### Publication Year

1988

2007

- This year (0)
- Last 5 years (0)
- Last 10 years (0)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- R. M. Nelms, L. L. Grigsby
- Fifth Annual Proceedings on Applied Powerâ€¦
- 1990

Power electronic circuits which contain nonlinear inductances are described by a set of nonlinear state equations. A sampled-data model is presented for the circuit from which a set of linear state equations can be formulated. In the sampled-data model, the nonlinear inductor is modeled by an ideal sampler, a variable gain, and a clamp. The state variablesâ€¦ (More)

- Dake He, R. M. Nelms
- IEEE Transactions on Industry Applications
- 2004

This paper describes the design and implementation of a microcontroller-based fuzzy logic average current-mode control (ACMC) for dc-dc converters. A fuzzy logic ACMC boost converter operating in the continuous conduction mode has been designed using a PIC16C782 microcontroller. Design procedures and implementation issues are discussed. No complex algorithmâ€¦ (More)

- Qingyi Feng, J.Y. Hung, R. M. Nelms
- Eighteenth Annual IEEE Applied Power Electronicsâ€¦
- 2003

Analysis, design, simulation and DSP-based implementation of a digital controller using a Posicast element are presented for the boost converter. Different from the classical Posicast approach, the proposed control method here reduces undesirable sensitivity greatly by using Posicast within a feedback loop. Furthermore, unfavorable effects on systemâ€¦ (More)

- A C Lippincott, R. M. Nelms, Madalina Garbi, E. E. Strickland
- Fifth Annual Proceedings on Applied Powerâ€¦
- 1990

A capacitor charging power supply (CCPS) has been assembled. A full-bridge series resonant topology using MOSFETs as switching elements makes up the bulk of the high-power section of the CCPS. A high-voltage transformer couples the output stage to the resonant inverter, and the secondary current of this transformer is rectified to provide the chargingâ€¦ (More)

- R. M. Nelms, Joe E. Schatz
- IEEE Trans. Industrial Electronics
- 1992

- Dake He, R. M. Nelms
- 2004 IEEE International Symposium on Industrialâ€¦
- 2004

This paper presents hybrid average current-mode control (ACMC) for a boost converter using an 8-bit microcontroller. In order to demonstrate the feasibility of a hybrid ACMC DC-DC converter, an ACMC boost converter operating in the continuous conduction mode has been designed using a PIC16C782 microcontroller. System modeling, main design procedures, asâ€¦ (More)

- A. Leedy, R. M. Nelms
- 2006 IEEE International Symposium on Industrialâ€¦
- 2006

A method used to determine the harmonic components of the output of a space vector PWM inverter is presented. The method calculates the Fourier coefficients of individual positive and negative pulses of the output PWM waveform and adds them together using the principle of superposition to calculate the Fourier coefficients of the entire PWM output signal.â€¦ (More)

- Liping Guo, J.Y. Hung, R. M. Nelms
- 31st Annual Conference of IEEE Industrialâ€¦
- 2005

Both linear PID controllers and fuzzy controllers are designed and implemented for a boost converter. Comparison between the two controllers is made in the aspect of design, implementation and experimental results. Design of fuzzy controllers is based on heuristic knowledge of the converter and tuned using trial and error, while the design of linear PID andâ€¦ (More)

- Raymond L. Newsom, William C. Dillard, R. M. Nelms
- IEEE Trans. Industrial Electronics
- 2002

The design and construction of a low-power low-cost power supply capable of charging an energy storage capacitor from a 120-V ac source and capable of power-factor correction (PFC) is presented. The load that is generally connected to a capacitor-charging power supply (CCPS) is a pulsed power load (i.e., laser, cardiac defibrillator, or flash lamp). Aâ€¦ (More)

- R. M. Nelms, B.E. Strickland, Madalina Garbi
- Conference Record of the 1990 IEEE Industryâ€¦
- 1990

Three techniques for charging power capacitors to voltages in the range of 2-40 kV are examined and compared. The first technique, which uses a high-voltage DC power supply with a charging resistor, is shown to have a maximum efficiency of 50%. This requires that both the high-voltage DC power supply and the charging resistor have increased power ratings.â€¦ (More)