Synchro to DC Converter operates at 400 conversions/sec.

Press Release Summary:



Miniature (1.5 cu. in) solid-state Series SD109 converts 3-phase synchro or 2-phase resolver inputs into sine and cosine outputs. Peak angular error is rated at ±3 minutes. Converter accepts output of 11.8 or 90 V, 3-wire synchro or 4-wire resolver and provides 2 dc voltages (sine of rotor shaft angle and cosine). Input is transformer isolated and balanced line to line; synchro input quadrature is rejected. Input frequency is rated at 400 Hz ±10%.



Original Press Release:


New 1.5 Cubic Inch Synchro/Resolver to DC Converters Operate a 400 Conversions Per Second


A series of new miniature (1.5 cu. in) solid state synchro to D.C. Converters, which convert 3 phase synchro or 2 phase resolver inputs into D.C. sine and cosine outputs has been introduced by Computer Conversions Corporation. The new units operate at 400 conversions/second, and offer a peak angular error of ±3 minutes.

The new converters, series SD109, accept the output of a standard 11.8v or 90v 3 wire synchro, or 4 wire resolver and provide two DC voltages. One voltage corresponds to the sine of the rotor shaft angle and the other to the cosine. The input is transformer isolated and balanced line to line. Synchro input quadrature is rejected.

Other specifications for part no. SD109 are:

Input Frequency:      400Hz +/-10% (60Hz. available)
Input Impedance: 10k ohms nominal L-L balanced
Reference: 26V ±10% @ 400Hz
Power Required: ±15V DC ±5% @ 12ma each max.
Plus output load current
Output Voltage: 0 to ±5V DC
Output Load: 10K ohm minimum
Output Protection: Short Circuit Proof
Operating Temperature: -55°C to +85°C

Size: 1.75 x 1.75 x .5H for P.C.
Board Mounting
Weight: 4oz typical

The unit is designed to meet MIL-E-5272C, E54006, T21200. Prices start at $350.00 each for unit quantities. Delivery is stock to 3 weeks.

Computer Conversions Corportation is located at 6 Dunton Court, East Northport, NY 11731 Phone: 516/261-3300 Fax: 516/261-3308.

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