UAV Factory GPU Manual de usuario descargar pdf (Pagina 10)

UAV Factory USA LLC.

50 South Buckhout Street,

Irvington, NY 10533 USA

Phone: +1 (914) 591 3070

Fax: +1 (914) 591 3715

UAV Factory LTD. EUROPE

24A-52 Ganibu Dambis,

LV1005, Latvia

Phone: +371 29119398

Fax: +371 63048747

Integrators should use the following formula to calculate approximate battery capacity for their UAV configuration:

Battery capacity (Ah) = operation time (h)  average load power (W) / battery voltage (V) / 0.8

Where operation time is desired operation time, battery voltage typically is 11.1 V and 0.8 is regulator typical efficiency.

Do not use other type of battery except Lithium Polymer, 3 cell batteries. Maximum battery current should not exceed

8A. When battery voltage is less than 12.6 V the charger charges the battery with current of <= 2 A. It is recommended

to connect battery to the system through a switch with current rating not less than 10 A.

When the battery source is used, GPU is not producing exactly 12 volt power output, please see Figure 9 for details. The

battery voltage and output voltage difference is approximately 0.4V. Please note that GPU cannot provide 12 V voltage if

battery voltage is less than 12.4 V.

Figure 9 Output voltage in battery source mode

8. External Power Supply

External power supply can be used as a power source when the engine is no operating. This is especially useful for

laboratory environment testing, during set-ups, during pre-flight checks on field as well as for charging the onboard

battery. The input voltage should be in the range of 13-50 Volts.

6 Volt output

12 Volt output

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UAV Factory GPU Manual de usuario Pagina 10