Motion Control - ElmoMC

Ocarina

Current Mode Servo Amplifier

Ideal for DC brush and brushless for trapezoidal commutation

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.
Miniature Analog DC Servo Amplifier

Standards

Product Drawings Ocarina Documentation

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)

Product Catalog Number
Feature
Units
Specification
PWM Switching Frequency
KHz
32 +/-5% default on the motor
Switching Method  
Advanced Unipolar PWM
Servo Modes  
Current
Commands  
+/- 10 VDC
Feedbacks  
Digital Halls
Current loop bandwidth
KHz
Up to 4
Output voltage
% VIN
93%
Ambient temperature
°C (°F)
0° ~ 50°C (32° ~ 122°F)
models for extended environmental conditions are available
Maximum case temperature
°C (°F)
87°C (188°F)
Storage temperature
°C (°F)
-40° ~ 100°C (-40° ~ 212°F)
Maximum humidity
%
90% non-condensing
Maximum operating altitude
m (ft)
up to 10,000 (30,000)
Accessories
Evaluation Board

An evaluation board that uses standard terminal plugs and
D-sub connectors is available. It is accompanied by documentation that describes how to set up the board, and by a complete set of cables.

For more information click here

To view in 3D,
click here.
Elmo Ocarina Evaluation Board