|
| ||||
|
UltraBeam. Electronically controlled HF antennas. | ||||
Specifications..
Contact usPhone : +39-011-2976723Fax :+39-011-2974470 E mail : info@ultrabeam.it Search
Electronics
The heart of an electronically controlled antenna is its dedicated controller. When designing it, our main objective has been a most reliable electronic, which has been achieved by over-dimensioning each component. The "ad hoc " driver for each step-motor uses a very reliable transistor-bridge. Each driver's peack-current of 10 Amps allows an extremely reliable function of each step-motor even under accidental short-circuit condition and severe electrostatic conditions. We could have employed a much cheaper material to drive the step-motors, but this would have made it untollerably less reliable. Each driver's operating parameters such as chopper current and frequency, half- and full-step are fully linearly controlled by the CPU ! The stop-current is independently generated for each motor by a very stable current generator in compliance with the step-motors. | ||||
