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Ocarina

Ocarina - Current Mode Servo Amplifier
Current Mode Servo Amplifier

The Ocarina is a series of miniature current mode servo amplifiers for DC brush and trapezoidal brushless motors. Although extremely compact, the Ocarina can support up to 15 amps continuous current. This high power density servo amplifier can deliver up to 2800 W of peak power or 1400 W of continuous power in a matchbox size package weighing only 1.6 oz (45 g). The servo amplifier offers significant operating features, including excellent output linearity and zero dead band performance. The Ocarina is a PCB mounted device that enables efficient, cost saving implementation.

Feature

Units

1/60

2.5/60

5/60

10/60

15/60

1/100

2.5/100

5/100

10/100

15/100

Minimum
Supply Voltage

VDC

11

20

Nominal
Supply Voltage

VDC

50

85

Maximum
Supply Voltage

VDC

59

95

Maximum continuous power output

W

55

140

280

570

850

90

230

460

920

1400

Efficiency at Rated Power (at nominal conditions)

%

Up to 99%

Maximum output voltage

 

93% of DC bus voltage at f=32 kHz

DC and trapezoidal commutation continuous current limit (Ic)

A

1

2.5

5

10

15

1

2.5

5

10

15

Peak current limit

A

2 x Ic

Weight

g (oz)

45 g (1.6 oz)

Dimensions

mm (in)

55 x 15 x 46.5 (2.1"x 0.6" x 1.8")

Mounting method

 

PCB mount (with 2mm pitch, 0.51 mm sq. pins)



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