OTHER: Electrical - Control

• Low Power:
• The objective is to have the electronic speed controller(s) start reducing the power going to the motor as the stored power diminishes to below a specific value. This reducing value will eventually result in the craft descending, irrespective of the pilot's desires. The objective is to take the craft down toward the ground on a gradual glide slope, unless the pilot should wish to descent faster. Before the location of flare, the pilot will arm the safety capacitors so that they can provide short-term full power for a conventional landing.
• Interestingly, it appears that the Schulze future-l series ESC's do this very thing. See 'Operating Instructions, page 6 e'

• Outside:
• Article on encoders including Absolute;~ http://www.machinedesign.com/ASP/strArticleID/55661/strSite/MDSite/viewSelectedArticle.asp
• US Digital ~ The A2 absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360° range. As opposed to incremental encoders, the A2 reports the absolute position rather than the change in position. When powered up, it does not require a home cycle, even if the shaft was rotated while the power was off.
• BEI Industrial Encoder Division;~ http://www.beiied.com/PDFs2/HS35_Absolute_Encoder.pdf
• Engineering Talk;~ http://www.engineeringtalk.com/guides/absolute-encoder.html
• Homemade Absolute Encoder;~ http://www.qsl.net/oe5jfl/encoder.htm

• Advanced Motion Controls: It appears that all controllers are a maximum of 3-phase.
• Servo Drives
• Example; B25A20

• Electrotor-SloMo - Control - ESC - Three-phase - Power Stage - Overview
• Electrotor-SloMo - Control - ESC - Four-phase - Power Stage - Overview
• Electrotor-SloMo - Rotor - Overview - 2-phase for SloMoCo (Coaxial) (and Bilateral?)
• Electrotor-SloMo - Rotor - Overview - 3-phase for SloMoCo (Coaxial) (and Bilateral?)
• Electrotor-SloMo - Rotor - Overview - 4-phase for SloMoCo (Coaxial) (and Bilateral?)

Power Transistors: To eventually be move to a lower level Item page.

• COMPARISON OF MOSFET AND IGBT TRANSISTORS IN MOTOR DRIVE APPLICATIONS

• Thyristor:
• MOSFET: (Metal-Oxide-Semiconductor Field-Effect Transistor)
• MOSFETs and MOSFET drivers. Have hard copy in Control binder.
• IGBT: (Insulated Gate Bipolar Transistor)
• IGBT or MOSFET: Choose Wisely
• IGBTs Or MOSFETs: Which Is Better For Your Design?
• IGBT Basics I Have hard copy in 'Control - Motor' binder.
• IGBT Basic II
• Motor Controllers
• BJT: (Bipolar Junction Transistor)

Heatsink: To eventually be move to a lower level Item page.

• Heat Sink Temperature Calculator
• Forced Convection Heat Sink
• There appears to be a lot of information available
• Heat Sink Selection Guide

Same Page ~ Different Craft: ~ Electrotor-SloMo ~ Electrotor-Simplex ~ Electrotor-Plus ~ Single-Bladed All Electric Rotor ~ AeroVantage ~ UniCopter

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