Electronic control system for a german equatorial telescopic mount

Electronic control system for a german equatorial telescopic mount

A simple hardware and firmware solution to implement a goto and sidereal tracking function

Edizioni Accademiche Italiane ( 20.11.2013 )

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Task of this book is to describe a conceptually simple and cheap solution to design an electronic board in order to implement an open-loop (so without feedbacks such as inertial sensors or rotary incremental encoders) control for a german equatorial telescopic mount, guaranteeing common goto and sidereal tracking functions to the system. Equatorial mount used is a Fast Linear Reverse by Avalon Instruments, which mounts a stepper motor in celestial right ascension axis and a stepper motor in celestial declination one. We will talk about stepper motors (by Sanyo Denki), relative bipolar chip-drivers (L6208 by STMicroelectronics)and their embedded power circuitries (with a particular focus on working of full H-bridges), about digital/analogical converters (AD7305 by Analog Devices) and firmware required to implement a proper microstepping drive by exploiting a simple 8-bit microcontroller by STMicroelectronics. Electronic board discussed here is a product designed and sold by LTEC srl and it has been matter of work for the author of this book during his internship at LTEC.

dettaglio del libro:

ISBN-13:

978-3-639-49008-4

ISBN-10:

3639490088

EAN:

9783639490084

lingua del libro:

English

By (author) :

Enrico Molinari

Numero delle pagine:

492

Pubblicato il:

20.11.2013

Categoria:

Electronics, electro-technology, communications technology