Synchro / Resolver Simulation (D/S) (D/R)


Synchro / Resolver Simulation (D/S) (D/R)

Modules D/S and D/R are NAI’s latest generation Synchro/Resolver Simulation Modules. These modules are used on our rugged COTS Multifunction Embedded I/O Boards, Single Board Computers (SBCs), and Configurable Systems offered in OpenVPX, cPCI, VME, and PCI/PCIe configurations.

NAI’s programmable, isolated output modules are unique, solid-state designs that operate down to 47 Hz.

Our Smart Function Modules provide uniquely flexible, mix & match customization options for use with our COTS hardware. Learn More

Modules D/S – D/R

Synchros and Resolvers are transformer-type voltage/current transducers that convert a shaft or other rotating device's angular position and/or velocity to a multi-wire AC electrical signal. Both deliver signals proportional to the Sine and/or Cosine of the shaft angle. A Resolver-to-Digital or a Synchro-to-Digital simulator is used to convert digital angle/velocity commands to corresponding Synchro/Resolver AC signals.

A wide variety of D/S and D/R modules are available to cover the range of excitation voltages/frequency, include extensive field-parameter programmability, and provide a full operating envelope choice for simulating virtually any type Synchro or Resolver. By eliminating the need for external transformers and operating with lower AC reference frequencies, these solid-state designs offer huge space savings.

D-S/D-R Block Diagram

There are three types of D/S and D/R modules:

3-Channel Modules:

These high-density modules have a lower power output drive (0.5 VA per channel, max.). The lower power output drive is ideal for driving solid-state input instruments, gauges, and Synchro Booster Amplifiers (SBAs).

2-Channel Modules:

The 2-channel modules have a standard (1.5 VA per channel, max.).

Single-Channel Modules:

The single-channel modules have a high-power output drive capability (3 VA per channel, max.).

All D/S modules feature a wrap-around self-test capability and most platforms support an optional, programmable AC excitation supply. In addition to state-of-the-art technologies and design algorithms, the modules include many other useful application features such as reference voltage and frequency measurement, reference loss detection, and paired channel, two-speed operation.


Click below for manuals and specifications:

DSxD/S(R) (Module DS*, DR*) - SYN, RSL; three, two or one channel(s) @ 0.5 VA, 1.5 VA or 3.0 VAN/AModule Manual - DS1-DSN

Function module(s) featured in products below:

ModelBoard TypeBoard ArchitectureFunction Module SlotsEthernetMaster / SlaveOn Board ReferenceOther
75G53U cPCIARM / Xilinx® Zynq32 x GbBoth   
64G5VMEARM / Xilinx® Zynq62 x GbBoth YUser application ARM processor capability
68G53U OpenVPXDual Core ARM® Cortex® A9 @ 800 MHz32 x GbBoth  Slot profile: SLT3-PER-1U-14.3.3 / Module profile: MOD3-PER-1U-16.3.3-2
ModelBoard TypeProcessorFunction Module SlotsMaximum MemoryMaximum StorageVideo OptionsEthernetAvailable O/S
75ARM13U cPCI SBCXilinx® Zynq 7015 with Dual Core ARM® Cortex® A9 @ 800 MHz3512 MB DDR3L SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks®, Xilinx® PetaLinux OS and DDC-I Deos™ support
75PPC13U cPCI SBCNXP® QorIQ® P2041 Quad-Core e500mc Processor @ 1.2 GHz28 GB DDR3L SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks®
75INT23U cPCI SBCDual Core Intel® i7 3517UE @ 1.5 GHz28 GB DDR3L SDRAM32 GB SATAII NAND FlashVGA, HDMI, LVDS, or DVI2 x GbCentOS, Red Hat®, Linux®, and Windows® Embedded Standard 7
64ARM16U VME SBCXilinx® Zynq Dual Core ARM® Cortex® A9 @ 800 MHz6 + AC Ref512 MB DDR3L SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks® and Xilinx® PetaLinux OS support
68PPC23U OpenVPX SBCNXP® QorIQ® T2080 Quad Core @1.5 GHz2 8 GB DDR3 SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks®
ModelPhotoBoard TypeDimensions w/Connectors (w x h x d)Volume w/Connectors (in3)Weight / lbs (fully populated)Est. Typ. Power Dissipation (W)# of Board SlotsFunction Module SlotsMax I/O PinsEthernet
NIU1AModule6.8" x 1.5" x 2.5"28.90<1.25 to 15 WN/A1592 x Gb
NIU2AModule7.0" x 3.0" x 2.5"52.5<2.755 to 25 WN/A21322 x Gb
SIU313U4.71" x 2.35" x 8.71"96.41<5.07 to 35 W131322 x Gb
SIU333U4.71" x 4.78" x 8.71"196.10<10.014 to 75 W393222 x Gb
SIU353U7.13" x 4.78" x 8.71"296.85<15.025 to 100 W5155122 x Gb