Supplier: Dexter Magnetic Technologies, Inc.
Description: Motors-Actuators Dexter magnetic technology for the motor / VCM market delivers the ability to push the limits on miniaturization, efficiency and performance. Many of the designs we have created enable our customers to achieve extreme performance in devices such as a wire bonding machines
- Magnet Type: Magnetic Assembly
Supplier: ROHM Semiconductor USA, LLC
Description: The BU64241GWZ and BU64243GWZ are designed to drive voice coil motor (VCM). The drivers include ISRC(intelligent slew rate control) to reduce mechanical ringing to optimize the camera's auto focus capabilities.
- Driver Type: Other
- Operating Temperature: -13 to 185 F
- IC Package Type: Other
- Screening Level: Commercial
Supplier: American Microsemiconductor, Inc.
Description: Disk Driver Spindle & VCM Control
- Continuous Output Current: 0.3000 amps
- Supply Voltage (DC): 5.5 volts
- Operating Temperature: 32 to 158 F
- Configuration: IC / PCB-Mounted
Supplier: Samsung Electro-Mechanics
Description: drive tile; no preload (no spring) Quick and highly accurate AF ※ VCM : Voice Coil Motor Roles of OIS(Optical Image Stabilizer) - Detects the hand shaking and moves in the opposite direction of the shaking part of the lens to prevent the image from becoming blurred Advantages of OIS
- Camera Function: Video
- Monochrome / Color: Color
- Imaging Technology / Camera Type: CMOS, Digital
- Board Mount: Yes
Supplier: VersaLogic Corporation
Description: The VCM-DAS-3 I/O module provides 16 channels of 12-bit resolution analog outputs along with 24 digital I/O lines on a single PC/104 module. The rugged VCM-DAS-3 is designed to provide capabilities beyond what is presently available on the market while maintaining drop-in compatibility with current
- Data Acquisition Device Type: I/O Module
- Form Factor: Printed Circuit Board (PCB)
- Digital I/O Channels: 24
- Resolution: 12 bits
Oxy-fuel Cutting and Welding Machines - Victor VCM 200HT High Temperature Cutting Machine W/Riggin.. -- 0200-0240Supplier: U.S. Welding & Safety Supply Co.
Description: of welding operations. Off track and with a radius rod assembly, the VCM 200 can be used for circle cutting. Large thumb screws for hand tight adjustments. Dual drive controls & direct speed readout. Cone disc drive. Constant speed AC induction motor located on the side opposite the torch for cooler
Description: ABS tank 3 drain holes Removable 3/8" barbed check valve New generation float arm for enhanced reliability Thermal overload protection Optional safety switch Suitable for High-Efficiency, Gas-Fumace Condensate Flame retardant ABS plastic motor & tank cover, volute and impeller Stainless steel shaft
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Voice Coil Motor with Built in Positioning Encoder
GEEPLUS DEVELOP FIRST EVER VOICE COIL MOTOR WITH A BUILT IN POSITIONING ENCODER. Giving resolution down to one μmtr, a new Voice Coil Motor developed by Geeplus is claimed to be the first ever with a built in positioning encoder. Incorporating an advanced magnetics count using high strength magnets to develop up to 3N with only a 1W input, the VCM uses the high force and a low, 20gr mass to give high acceleration capability for ultra fast movement. Acceleration is up to 100G. The shaft... (read more)
Browse Voice Coil Actuators and Motors Datasheets for GEEPLUS Inc.
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Comprehensive modeling of friction in a hard disk drive actuator
They are two of major nonlinearities in the VCM motor , which result in large residual errors and deteriorate the performance of head positioning servo systems.
Improvement on a hard disk drive servo system using friction and disturbance compensation
The VCM motor is popularly designed to actuate the readwrite recording arm assembly to carry the read/write (ww)head onto the designatedtrack quickly andprecisely.
Modeling and Analysis of Micro Hard Disk Drives
The VCM motor is popularly taken to carry the read/write (R/W) head onto the requested track quickly and precisely in the disk drive industry.
Design of a flexure-based auto-focusing device for a microscope
3) The VCM motor cannot be fixed upside down, because its moving coil will not be held under powerless condition.
Track following servo control for rotary piezoelectric motor based primary actuation in hard disk drives
Some of the advantages of the PZT based primary actuation are as follows: (1) Pending impact of driver electronics, there is a $0.50 cost savings over the VCM Motor configuration (2) Possible re-definition of a ‘‘reduced-sized’’ or short- ened …
Accelerated in vitro durability testing of nonvascular Nitinol stents based on the electrical potential sensing method
The VCM motor drives a bellow that produces constant peristaltic pressure movement at 33 Hz and 120 ± 4 mmHg to the SBF inside the silicone tubes with stents to simulate the in vivo pulsatile activity.
Servo loop gain calibration using Model Reference Adaptation in HDD servo systems
Each hardware component of the HDD servo system, such as VCM motor , VCM driver, A/D and D/A converters, and so forth, usually has their own offsets and gain differences.
Improvement of HDD tracking performance using nonlinear compensation and RPT control
Presently, HDD servo systems use a VCM motor to actuate the read/write (R/W) recording arm assem- bly(see Figure 1).
Parameter sensitivity analysis of disk drive head load control system
Equation 1 shows that the voltage across VCM motor has three components (Fig. 4).
Page 1. Semiconductor parts with 005 in root number
Spindle/ VCM motor controller/drivers.
Hyundai's New Generation 1.8L Gasoline Engine
Figure 21 canning method of catalyst TCU integrated PCU controls variable charge motion ( VCM ) motor , binary & linear type oxygen sensor, idle stop & go (ISG), Smart and analogue type battery energy management (BEM), flex fuel vehicle (E-FFV) and 6 speed …
Fractional-Order Proportional Derivative Controller Synthesis and Implementation for Hard-Disk-Drive Servo System
In all the hardware components in an HDD servo system, there exist offsets and gain variations, e.g., the VCM motor and driver, combo circuits, different heads and disks, and also different track widths on the disks.
A discrete time-varying internal model based approach for high precision tracking
The tracking algorithm is considered for a high precision X- Y servo gantry with linear VCM motors , which represents many important industrial applications such as laser beam s- teer, PCB laser marking, and advanced imaging systems .
Robust friction compensation in HDDs
II MODEL OF THE HDD SERVO WITH FRICTION The dynamics of a VCM motor actuating a load are given by iJ =(1), where T is the VCM control input, 8 is the head position in radius, (1) is the head angular velocity …
Use of MEMS based accelerometers in hard disk drives
A linear VCM motor , whose position is sensed with a high precision optical device (PSD), drives the shaker.