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Roberto Rojas

Observed names: R. Rojas, R.E. Rojas, ROBERTO. ROJAS, Rojas, Roberto
ORCID: 0000-0002-1988-5190
Observed ORCID: 0000-0002-1988-5190
OpenAlex ID: A5085238570
On-sky commissioning of Hamamatsu CCDs in GMOS-S
2016 · German Gimeno, Katherine Roth, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 91
An improved voltage vector control method for neutral-point-clamped inverters
1995 · R. Rojas, T. Ohnishi, et al. · IEEE Transactions on Power Electronics · 69
PWM control method for a four-level inverter
1995 · R. Rojas, T. Ohnishi, et al. · IEE Proceedings - Electric Power Applications · 64
Simple structure and control method for a neutral-point-clamped PWM inverter
2002 · R. Rojas, T. Ohnishi, et al. · Power Conversion Conference · 37
Neutral-point-clamped inverter with improved voltage waveform and control range
1995 · R. Rojas, T. Ohnishi, et al. · IEEE Transactions on Industrial Electronics · 23
Modern circuit topology enables compact power factor corrected three-phase rectifier module
2003 · N. Backman, R. Rojas · International Telecommunications Energy Conference (INTELEC) · 18
PWM Control Method for NPC Inverters with Very Small DC-Link Capacitors.
1995 · Roberto Rojas, Tokuo Ohnishi, et al. · IEEJ Transactions on Industry Applications · 15
PDF
Ferroresonance mitigation for the unconventional rural electrification system
2023 · R.E. Rojas, J.S. Chaves, et al. · Electric Power Systems Research · 10
Neutral-point-clamped inverter with improved voltage waveform and control range
2002 · R. Rojas, T. Ohnishi, et al. · Annual Conference of the IEEE Industrial Electronics Society (IECON) · 7
The Gemini secondary mirror tip/tilt system: past, present, and future
2008 · Christopher J. Carter, Mathew J. Rippa, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 4
Upgrade and standardization of real-time software for telescope systems at the Gemini telescopes
2014 · William N. Rambold, Pedro Gigoux, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 3
Simple Structure Multilevel Inverter Useful for Ac Motor Drives
1997 · ROBERTO. ROJAS, TOKUO. OHNISHI, et al. · Electric Machines & Power Systems · 2
Tools to synthesize the learning of thin films
2011 · Roberto Rojas, Gonzalo Fuster, et al. · European Journal of Physics · 1
PWM Technique for NPC Inverters by Means of Decoupled Control of Voltage Vector Components.
1994 · Roberto Rojas, Tokuo Ohnishi, et al. · IEEJ Transactions on Industry Applications · 1
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Geometric trimming of B-spline surfaces
1994 · Roberto Rojas · VTechWorks (Virginia Tech) · 1
Influence of approximate internal impedance formula on half-wavelength transmission lines
2025 · J.E. Guevara Asorza, R.E. Rojas, et al. · Electric Power Systems Research
Experience Upgrading Control Systems at the Gemini Telescopes
2018 · Nunez, Arturo, Arriagada, Ignacio, et al. · JACOW
CHILECON 2015 - 2015 IEEE Chilean Conference on Electrical, Electronics Engineering, Information and Communication Technologies, Proceedings of IEEE Chilecon 2015
2016 · Patricio Robles, Italo Chiarella, et al. · conference
Gemini South Multi-Object Spectrograph (GMOS-S) detector Video boards upgrade: improved performance for the Hamamatsu CCDs.
2016 · G. Gimeno, Luc Boucher, et al. · AAS
Authors' Response
2007 · Roberto Rojas, Gonzalo Fuster · The Physics Teacher
Re-invigorating the NTT as a new technology telescope.
1994 · D. Baade, E. Giraud, et al. · The Messenger
Works count: 21
Citation count: 346
H-index: 8
I10-index: 8
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