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SQL-RV-1.8
Reduced Voltage SQUIGGLE RV Micro Motor
Linear Drive System

The world's smallest linear motor - now with smallest piezo driver and reduced voltage requirements - adds precise motion to mobile and ultra-miniature OEM products

SQUIGGLE motors allow design engineers to add motion features into products where they could not have been imagined before. This tiny linear drive system offers greater power efficiency, higher reliability, and ten times better precision than electromagnetic motors.

 

 

The SQL-RV-1.8 drive system consists of the new SQL-RV-1.8 "reduced voltage" SQUIGGLE RV micro motor and the NSD-2101 piezo drive IC. Together they create the world's smallest linear piezo motion control system, with performance comparable to much larger systems. State-of-the-art multi-layered piezo technology is combined with advanced, smart integrated circuit design and patent-pending control algorithms to create a breakthrough linear motion control system with unparalleled performance.

 

The new "RV" version of this patented ultrasonic piezo motor and driver introduces a number of industry firsts:

  • Direct battery input as low as 2.3 VDC to the drive chip with no external voltage boost circuitry required.
  • Complete driver solution much smaller than motor and 5x smaller than comparable systems.
  • 40% lower power consumption than comparable electromagnetic solutions.

 

SQL-RV-1.8 system features include:

  • Tiny (2.8 x 2.8 x 6 mm), high-performance motor
    • Speed of 10 mm /sec typical
    • 0.5 μm position resolution
    • 50 grams stall force - nearly twice that of previous SQL-1.8 motors
  • Tiny (1.8 x 1.8) mm driver IC
    • Industry's smallest piezo driver solution
    • 5x smaller than compariable solutions
  • Industry first direct IC input from 2.3 VDC
    • Smart IC with patent-pending controls
    • No boost required

 

SQUIGGLE motors offer:

  • Direct linear movement with no gears or cams
  • Self-locking design that uses power only when moving
  • Robust construction that withstands high shock loads
  • Silent, ultrasonic operation
  • Wide operating temperature range
  • Simple construction for high-volume, low-cost manufacturing
  • Customization for OEMs

 

 

 

System Specifications

The SQL-RV-1.8 and NSD-2101 drive IC provide a broad range of performance over a range of input voltages. Refer to the data sheet for motor force and speed as a function of input voltage to the NSD-2101 driver IC, as well as the power required at various voltages to achieve a range of linear motor speeds.

Download data sheet with performance curves and drawings (372K PDF)

SQL-RV-1.8 motor and controller minimum specifications (at 2.8 V input)
Travel Range 6 mm (call for custom)
Housing Dimensions 2.8 x 2.8 x 6 mm
Motor Body Dimensions 1.8 x 1.8 x 6 mm
Resolution 0.5 μm
Stall Force 50 gram force (0.5 N)  |  (55 gram force (0.55 N) typical)
Speed at 15 gram force load > 7 mm/s   (10 mm/sec typical)
Input Power (stopped) OFF POWER HOLD (0 mW)
Input Power to motor driver (moving) * < 340 mW (NSD-2101 direct drive)
Input Power to controller components (moving)* ~ 1mW (MC-33DB-RV)   |  ~ 330 mW (MC-3300-RV)
Lifetime (load-dependent)** > 1 million cycles
Operating Temperature -30 to +80°C
Storage Temperature -40 to +85°C
Shock Resistance (motor only - zero mass load) 2500 G's
Cable/Connector Flex circuit
Motor Controller (see below) MC-3300-RV, MC-33DB-RV, NSD-2101
Operating Frequency ~ 171 KHz
Capacitance per Phase ~ 0.67 nF
Weight  0.16 grams

*Power (moving) depends on input voltage, speed and load. Data is for 15 gram load, 2.8 VDC and 7 mm/sec. Consult the data sheets for typical power curves.

** Lifetime test at continuous operation, full speed, room temperature, with ~15 gram force load.

 

Motor Driver and Development Platform

NSD-2101 piezo motor driver IC

The NSD-2101 piezo motor driver is only 1.8 x 1.8 mm in wafer-level form (BGA package). It converts 2.3 to 5.5 VDC battery input directly to high frequency AC power to control the SQL-RV SQUIGGLE motor. Custom designed to drive the SQUIGGLE RV multi-layer motor, the NSD-2101 provides advanced proprietary features such as frequency tracking and hybrid speed control to optimize motor performance while minimizing power consumption over a broad range of operating and environmental conditions. NSD-2101 accepts commands from your system processor over a digital I2C serial interface. 

 

MC-3300 motor controller

The MC-3300-RV is a full-function motor controller ideal for system evaluation and development. Connect it to a PC via via the USB interface and use the New Scale Pathway Software (included) for evaluation and embedded system development.

 

The MC-3300-RV accepts position input from New Scale's TRACKER position sensors or from other digital or analog position sensors. for closed-loop system control.

 

The MC-3300-RV mother board includes the processor, 12-bit A/D converter for analog position feedback, digital differential quadrature feedback, I2C feedback for TRACKER position sensors, and a USB interface. The MC-33DB-RV daughter board contains two motor driver ASICs, capacitors and motor connectors. It is easily removed from the mother board when direct input via I2C interface is desired. Both the daughter board (MC-33DB-RV) and ASIC (NSD-2101) are available separately for integration into OEM systems.

  

New Scale Pathway Software and development platform

New Scale Pathway™ Software is a flexible and sophisticated tool for rapid evaluation of New Scale motors, sensors and motion systems. Its power and ease of use speed product design, system integration and performance validation.

An easy-to-use, "point and click" graphical user interface allows you to interactively operate New Scale motors, sensors and motion systems by selecting tabs, entering values in boxes (speed, step, frequency, etc.) and clicking graphical buttons (jog, run, etc.). All features are accessible using mouse and keyboard.

The software also features a powerful script generator that enables you to create and run automated commands and sequences for almost any motion control task. The script editor is fast, flexible and easy to use, even by non-programmers.

 

Download New Scale Pathway Software (registration required)

 

 

 

 

SQL-RV-1.8 Controller Specifications 

  NSD-2101 IC MC-33DB-RV MC-3300-RV Controller
Description

motor drive IC

Download Data Sheet (702Kb PDF)

Daughter board with 2 NSD-2101 ICs, capacitors, motor connectors

Full-featured controller and development platform; includes MC-33DB-RV daughter board.

Number of motors driven 1 2 2
Input Voltage 2.3 to 5.5 V DC
Power*** ~100 to ~600 mW per motor, depending on voltage and speed, at 15 gram load 1.6 W max system power 
Control Signals I2C serial interface - USB interface for PC control using New Scale Pathway Software, LabView or other application
- Analog input position servo
- I2C serial interface (custom option only)
Control Software n/a New Scale Pathway Software with scripting interface and ActiveX command library (included)
Output Signals Set of four high-frequency half-bridge control signals  (+P1-1, -P1-2, +P2-1, -P2-2).
ONE set of output signals TWO sets of output signals TWO sets of output signals
Position Sensor Input n/a - Digital (differential quadrature, single axis)
- Analog (12 bit A/D converter)
- Limit switch input
- I2C (TRACKER only)
Closed Loop Commands n/a 13 commands including Speed, Move to Target, Step, Zero, Enable Reference Mark
Open Loop Commands n/a 17 commands including Speed, Run, Stop, Timed Step(s)
Dimensions (l x w x h) 1.8 x 1.8 x 0.6 mm BGA pkg**** 23 x 18 x 13 mm
(0.9 x 0.7 x 0.5 inches)
29 x 58 x 16 mm
(1.2 x 2.3 x 0.63 inches)

***Power depends on input voltage, speed and load. Consult the data sheet for typical power curves.

**** The NSD-2101 is also available in a 4 x 4 x 0.9 mm 16-pin QFN; minimum order quantities apply

 

Developer's Kits

SQL-RV motor Developer's Kits provide a convenient platform for initial evaluation through prototype integration of the SQUIGGLE RV motion system. The open-loop Developer's Kit contains one SQL-RV motor, the New Scale Pathway PC Software and MC-3300-RV motor controller containing two NSD-2101 ICs. This system can be used to control up to two SQL-RV motors.

 

The Closed-Loop Developer's Kit also incorporates one TRK-1T02 TRACKER NSE-5310 miniature position encoder. (We recommend closed-loop operation when repeatable step size, absolute position or precise velocity control is needed; see Creating Closed-Loop Positioning Systems Using SQUIGGLE Motors for more information.)

 

The motor, encoder and controller can be easily removed from the Developer's Kits for integration into your prototype.

 

Next Steps

Once you've determined that SQUIGGLE motors are right for your application we can provide motors in quantity, create customized micro motors, or design application-specific modules to fit your OEM requirements. See our custom engineering page for more information.

 

 
SQL-RV Series Ordering Information
DK-RV-1.8-33 open-loop developer's kit Open-loop Developer's Kit. One SQL-RV-1.8-6-12 SQUIGGLE motor, mounted in a reference design module demonstrating proper motor loading, mounting and alignment. Integrated with MC-3300-RV motor controller in a protective case; easily disassembled for integration into your prototype system. Includes USB cable, New Scale Pathway Software and user guides. Operates on 2 AA batteries (included).
DK-RV-1.8-TRK-33 closed-loop developer's kit Closed-loop Developer's Kit. One SQL-RV-1.8-6-12 SQUIGGLE motor and one NSE-5310 TRACKER miniature position sensor with 11 mm magnet. Motor and sensor mounted in a reference design module demonstrating proper motor loading, mounting and alignment. Integrated with an MC-3300-RV motor controller in a protective case; easily disassembled for integration into your prototype system. Includes USB cable, New Scale Pathway Software and user guides. Operates on 2 AA batteries (included).
SQL-RV-1.8-6-12 motor SQL-RV-1.8 motor with 6 mm travel range / 12 mm screw length.  (Call for custom travel range and screw length.) Each MC-3300-RV controller or DK Developer's Kit can drive two motors.
MC-3300-RV Controller   Drives two SQL-RV-1.8 motors. New Scale Pathway software included.
PCS-3V-K   Optional AC power adapter for MC-3300-RV or Developer's Kits. 110/220VAC international power adapter, 3.3 VDC. Power cable connects AC adapter to MC-3300-RV.
NSD-2101   Piezo motor driver IC in wafer-level chip-scale packaging. Available in OEM quantities; contact the factory.

 

For more information

 

See also

The SQL-1.8 Series micro motors described on this page are robust devices with smallest size and low battery power consumption.

 

  • See the SQL-3.4 series micro motors if you require higher force or longer travel in the smallest size possible.
  • Consider the SQ-100 Series micro motors for highest precision and push force - ideal for laboratory and research applications.
  • Learn more about our custom development of micro motion systems for OEMs.

 

 


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