Motor efficiency depends on PFC (Part 2
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2009-10-29 |
| Active power factor correction (PFC) can achieve very high power factors with reasonably sized components, although the energy efficiency may be slightly lower than with passive techniques (94 per cent compared with 96 per cent, for example) due to the addition of switching components. |
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| Electric hub motor enhances EV range (Part 1
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2011-05-09 |
| Learn more about "electronic gearbox" that control circuitry while requiring less power. |
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| Simplify automotive DC motor driving
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2009-04-16 |
| Read about a MOSFET H-bridge that enables DC motors to draw higher currents in order to offer a suitable torque. |
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| Design a piezoceramic motor for MRI
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2009-02-10 |
| Read about piezoceremic motors that can enable precision movement in magnetic resonance imaging systems. |
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| Sympathetic algorithms
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2001-11-01 |
| This technical article discuss how engineers can be able to control motor functions by sympathetic algorithms and without any use of sensors |
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| Multiplier circuit gauges real power in high-frequency PWMs
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2008-08-13 |
| Learn about a power measurement circuit capable of measuring the power dissipated in a PWM-driven motor |
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| Single-chip ICs boost adaptive front lighting system design
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2008-10-23 |
| Here's how the location of the motor control ICs in the vehicle impacts adaptive front lighting system efficiency—affecting glare and illumination |
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| Increase equipment efficiency with app-specific IGBTs (Part 2)
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2009-10-01 |
| This article discusses IGBT use in motor drive applications, data centre power management, solar applications and more |
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| Embedded DSPs Bring Cost-Effective High-Performance Solutions To Appliance Control
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2001-04-02 |
| This paper presents the basic features and advantages of embedded DSP motor controllers, and then focuses on the implementation of DSP-based, field-oriented control for induction motor and Extended Kalman Estimator for sensorless brushless DC motor control |
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| Controlling motion without sensors
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2001-09-01 |
| When processing signals digitally, position control can be performed in a number of ways. This article illustrates a sensorless control technique using a stepper motor |
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| Implementing embedded speed control for brushless DC motors (2)
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2007-01-02 |
| This article discusses trapezoidal control in a BLDC motor using Hall sensors, and other issues in implementing speed control |
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| Implementing embedded speed control for brushless DC motors (1)
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2006-12-27 |
| This series of articles will discuss the basics of brushless DC motor controls, including their construction and operation, fundamental equations for force and torque generation, along with basic control electronics necessary for proper deployment |
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| Using quad SPST analogue switches to drive DC motors
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2006-10-05 |
| DC motor-drive hardware and software include dead time to avoid full-bridge amplifier shorting supply rail |
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| H-Bridges provide 'smart power' for automotive SoC applications: Challenges and concepts
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2008-02-21 |
| From electric motor controllers to Class D amplifiers, efficient mixed-signal integration is vital in design, and saving energy and cost |
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| H-Bridges provide 'smart power' for automotive SoC applications: Challenges and concepts
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2008-02-21 |
| From electric motor controllers to Class D amplifiers, efficient mixed-signal integration is vital in design, and saving energy and cost |
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| Monitoring high-voltage batteries in cars
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2009-11-17 |
| Cars whose wheels are driven by battery-powered electric motors rely on batteries of series-connected cells to obtain sufficiently high voltage to operate the motor efficiently |
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| Fast-recover MOSFETs for current commutation in DC motors
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2007-06-14 |
| This article details how a fast-recover diode can be used to improve the body diode performance in a brushless motor three-phase inverter topology providing six-step current commutation |
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| H-Bridges provide 'smart power' for automotive SoC applications: Architectures and circuit protection
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2008-02-26 |
| From electric motor controllers to Class D amplifiers, efficient mixed-signal integration is vital in design, and saving energy and cost |
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| Analogue outputs for industrial apps
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2008-04-12 |
| In industrial automation and process control applications, the analogue output module transmits analogue signals (voltage or current) that operate controls such as hydraulic actuators, solenoids, and motor starters |
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| Cut RTOS latency in interrupt-intensive apps
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2009-07-08 |
| Examine the potential for an RTOS to introduce greater interrupt overhead when used inappropriately. |
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| Improving motion-control architectures
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2008-07-22 |
| It is not just improved motors and MOSFETs that matter; architectures play a key role in modern motion control. |
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| Push for higher reliability with induction motors
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2009-11-24 |
| Frequency converters allow adjusting the speed and current. For this purpose, different control strategies adequate for the desired dynamic responds have to be considered. |
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| Enabling 'green' designs with SRMs
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2009-07-29 |
| The industry continues to move from induction motors that are less efficient and more cumbersome from a design perspective to switched reluctance motors (SRMs). |
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| Learn about regeneration
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2009-02-18 |
| Read about regeneration which is the recharging of battery that occurs during normal operations of motors. |
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| Lessen servo amplifier-sourced noise
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2008-09-04 |
| Although the motion-system designer can't change servo amplifier rise rate, noise can be minimised. |
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| Motion-control architectures adapt to technology changes
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2006-08-11 |
| This article discusses how architecture plays an important part in modern motion control technology. |
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| Implement H-bridges to power automotive SoCs
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2008-07-18 |
| Learn how to implement H-bridges in "smart power" technology for an automotive application. |
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| The three Ps of value in selecting DSPs
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2004-11-03 |
| The demand for DSPs has outstripped the supply of engineers and programmers who are familiar with them. Price, performance, and power are the first three criteria most developers evaluate. This high-level article walks you through the process of weighing and balancing these and other characteristics. |
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| Characterise power control devices
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2009-01-29 |
| Know how to accurately characterise power ICs and amps by the type of load they will be handling. |
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| Distributed processing blocks boost processor efficiency
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2009-12-02 |
| Multiple instantiations of the same processor now share the processing burden of the applications running on the PC. Here's how you can boost processor efficiency. |
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Strange modes of transport and other "stuff"
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