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UAV Factory USA LLC. 

50 South Buckhout Street, 
Irvington, NY 10533 USA 
Phone:  +1 (914) 591 3070 
Fax: +1 (914) 591 3715 
Email: 

[email protected]

 

UAV Factory LTD. EUROPE 

24A-52 Ganibu Dambis,  
LV1005, Latvia 
Phone: +371 29119398 
Fax: +371 63048747 
Email: 

[email protected]

 

1

 Enclosure temperature must not exceed 70 °C, additional cooling may be required  

2

 The tachometer range is valid for serial number starting from GPU0042 

Electrical Specifications  

Brushed generator voltage range 
Brushless generator voltage range 

13 – 50 V 
10 – 35 V 

External power supply voltage range 

13 – 50 V 

Battery Type 

3 cells, Lithium Polymer 

Battery Voltage  

12.6 V 

Maximum battery charging current 

2 A 

Maximum continuous generator input current 

8 A 

Maximum continuous battery input current 

8 A 

Maximum continuous external power current 

8 A 

Output voltage 

6 V and 12 V 

Maximum output voltage ripple 

200 mV@6V 

400mV@12V 

Continuous load current, 6 Volt output

1

 

5A 

Continuous load current, 12 Volt output

1

 

5A 

Maximum peak load current 

10 A for 10 seconds 

Efficiency of 6 Volt output 

85% typical 

Efficiency of 12 Volt output 

90% typical 

No load GPU current 

110 mA 

Tachometer range

2

 

1000-90000 rpm 

Tachometer accuracy 

200 rpm 

Current sensor range 

0 to 10 A 

Current sensor accuracy 

0.2 A 

Voltage sensor accuracy 

0.1 V 

Serial Communication 

5V TTL 

Mechanical Specifications

 

Dimensions 

59.4  x 115.8 x 32.4 mm   

Weight ( with conductive enclosure) 

190 grams 

Cooling method 

Conductive or fan-assisted 

Maximum enclosure temperature  

70°C 

Environmental  protection 

IP 64 standard, IP 68 on request  

Operating temperature  

- 40°C to +50°C 

1

 

Electrical connectors 

Fischer 104 Series push-pull connector 

 

 

 

 

Summary of Contents for GPU

Page 1: ...ton NY 10533 USA Phone 1 914 591 3070 Fax 1 914 591 3715 Email josephm uavfactory com UAV Factory LTD EUROPE 24A 52 Ganibu Dambis LV1005 Latvia Phone 371 29119398 Fax 371 63048747 Email sales uavfacto...

Page 2: ...nitored during the flight Generator power unit can be used with brushless or brushed generators that have a voltage output within 10 35 Volts and 13 50 Volts respectively Integrated Lithium Polymer ch...

Page 3: ...m continuous battery input current 8 A Maximum continuous external power current 8 A Output voltage 6 V and 12 V Maximum output voltage ripple 200 mV 6V 400mV 12V Continuous load current 6 Volt output...

Page 4: ...uckhout Street Irvington NY 10533 USA Phone 1 914 591 3070 Fax 1 914 591 3715 Email josephm uavfactory com UAV Factory LTD EUROPE 24A 52 Ganibu Dambis LV1005 Latvia Phone 371 29119398 Fax 371 63048747...

Page 5: ...presented below Efficiency for the 6 V output against the input voltage is shown in Figure 1 efficiency for 12 V output is shown in Figure 2 The maximum continuous power of the GPU is dependent on th...

Page 6: ...91 3715 Email josephm uavfactory com UAV Factory LTD EUROPE 24A 52 Ganibu Dambis LV1005 Latvia Phone 371 29119398 Fax 371 63048747 Email sales uavfactory com 6 Figure 2 Efficiency at 12 Volt output vs...

Page 7: ...the brushless GPU version the 3 phase rectifier is used between the generator and the internal DC DC converter of the GPU refer to Figure 5 Therefore DC voltage at the DC DC converter is equal to rec...

Page 8: ...The ratio between the pulleys is chosen to keep the GPU input voltage under the 50 V limit Figure 6 Belt driven onboard generator example In many cases at low engine rpm the voltage generated is less...

Page 9: ...diagram for brushless generator Figure 8 Typical connection diagram for brushed generator GPU Generator Battery 6 V load 12 V load Transmitter Battery GND Brushed gen Ext power GND GND 6 V out 12 V ou...

Page 10: ...ircuit in the payload unmanned aircraft can still perform a safe landing 6 Battery backup External battery provides power supply to the system in case the input voltage drops below the battery voltage...

Page 11: ...mately 0 4V and GPU cannot provide 12 V voltage if battery voltage is less than 12 4 V and starts to operate with 100 duty cycle Figure 10 Output voltage in battery source mode 7 External Power Supply...

Page 12: ...52 Ganibu Dambis LV1005 Latvia Phone 371 29119398 Fax 371 63048747 Email sales uavfactory com 12 Figure 11 Input Output connectors and status LEDs Figure 12 Connector J1 description Red mark RPM sens...

Page 13: ...presence 12 V green LED indicates 12 V voltage presence BAT green LED indicates that battery is supplying the system When LED is off the generator or external power is supplying the system CHRG red LE...

Page 14: ...value Serial protocol uses 83 bytes packet and send it one per second Figure 15 shows the output string format This protocol is valid for GPU serial number starting from GPU0042 For older serial numb...

Page 15: ...B09 B10 B11 B12 B13 B14 B15 B16 B17 R p m space space space V g e n B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B33 B34 space space space V b a t t B35 B36 B37 B38 B39 B40 B41 B42 B43...

Page 16: ...EXT BATT Figure 16 Cable set wiring schematic diagram Table 1 Cable set description of connections Label Wire color Connection description GEN red Brushless generator phase A red Brushless generator...

Page 17: ...less version GPU100B GPU Accessories Item Order code Qty FISCHER cable plug for J1 S104A056 1 FISCHER cable plug for J2 S104Z056 1 Cable set with plug for J1 50 cm SJ105 1 Cable set with plug for J2 5...

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