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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.
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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 |
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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 |
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PCB mount (with 2mm pitch, 0.51 mm sq. pins) |
| Product
Catalog Number |
Feedbacks Supported
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Feature |
Units |
Specification |
| PWM Switching Frequency |
KHz |
32 +/-5% default on the motor |
| Switching Method |
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Advanced Unipolar PWM |
| Servo Modes |
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Current |
| Commands |
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+/- 10 VDC |
| Feedbacks |
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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) |
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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
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| Downloads:
Standards
Product Drawings
Ocarina
Ocarina Documentation
Ocarina Evaluation Board
Application Notes
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