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4-quadrant positioning motion controllers feature integral output stage Pittman Motors is introducing its latest offering: the BGE Series of Servo Motor Controllers, a family of compact 4-quadrant positioning motion controllers with integral output stage to control Pittman brushless and brushed DC motors. The motion controllers can be operated in stand-alone operation with digital or analog IO or as a slave in a CANopen network with device profile DSP 402, protocol DS 301. The family of motion controllers is rated from 12VDC to 60VDC input voltage and 4 amp to 20 amp continuous output current. The BGE Series controllers are suitable for use with Pittman brushless or brushed DC motors. Information about the motor’s rotor position can be supplied to the positioning controller by an encoder or integrated Hall sensors contained within a brushless motor. The controls incorporate protection against over-voltage, low voltage and excessive temperature. If 4-quadrant digital speed control is desired, the control can be commanded to run in either direction, stop and hold with torque, and stop without torque (coast) through digital inputs. Other inputs can switch between programmed speeds or allow for a variable analog speed reference. Accel/decal ramps for the motor also can be programmed. The control offers the capability for a motor to function as a stand-alone or programmed servo, which interfaces to the rest of the machine via digital and analog IO. The BGE Series electronic controllers offer many different modes of operation to choose from, such as analog or digital torque control, analog or digital speed control and digitally selectable position control (relative, absolute, and modulo). The controls incorporate protection against over-voltage, low voltage and excessive temperature. Pittman Motors www.pittman-motors.com 16-bit flash MCU drives 352 segment display Seiko Epson has released samples of its S1C17W18, a 16- bit flash microcontroller at 1.2V and capable of driving 352 segment displays by achieving 40% less current consumption in operating mode than the company’s previous offering. Delivered in a SQFN9-64 pin package, the device can operate on a small, low-capacity button battery and can be connected to a variety of sensors making it suitable for mobile applications. Target applications include high-performance watches, remote controls, healthcare devices, security tokens or any other small portable electronic devices. The S1C17W18 draws just 150μA/MHz in RUN mode, with a 0.15μA current consumption in SLEEP mode. This low current consumption was achieved through the development of a new flash memory that can be rewritten on a single 3V power supply, with 1.000 guaranteed rewrite cycles. Builtin oscillator circuits can output seven different frequencies, eliminating the need for external oscillators which reduces total part counts and costs and saving board space. Epson Europe Electronics www.epson-electronics.de Circular customisable OLED modules 2.87cm in diameter Custom and semi-custom display specialist andersDX has extended its range of circular display modules with the addition of a round OLED display module. The new 1.13” (2.87cm) Passive Matrix OLED TFT Display is again targeted at wearable electronics, especially in the healthcare and fitness sectors and is manufactured by Truly Semiconductor. The module is fully customisable and also offers an attractive option in a number of industrial applications. andersDX announced a 1.48” round touchscreen module in July. The andersDX OEL9M0082-W-E PMOLED module has an active area of 28.8x28.8mm and a resolution of 128 x 128 dots. The recently announced round touchscreen module is also fully customisable with affordable NRE and tooling cost structures. andersDX www.andersdx.com MEMS crash sensors complete airbag kit from ST STMicroelectronics has introduced two central airbag crash sensors alongside its peripheral crash sensors, airbag system ICs, and safety microcontrollers, creating a complete airbagelectronics kit that supports stringent automotiveapplication and functionalsafety requirements. The AIS1120SX and AIS2120SX single- and dual-axis 120g in-plane MEMS accelerometers are designed to be mounted in the vehicle’s Airbag Control Unit (ACU) responsible for evaluating the sensor data and triggering the appropriate restraint system. Each sensor includes two independent sensing channels for redundancy and incorporates both slow and fast offset cancellation as well as precise temperature compensation for optimum stability. Built-in power-on self-test ensures reliability and run-time diagnostics help developers achieve the required level of functional safety. Both sensors have standard 400 Hz signal bandwidth, which the engineer can extend to 1600 Hz. ST has used its MEMS technology to integrate the precision mechanical sensing element in the same package with a 3.3V-compatible interface IC featuring a 14-bit digital SPI output. The AIS1120SX and AIS2120SX sensors are specified over the extended temperature range from -40°C to +105°C. They will enter full production in Q1 2016 in a plastic fully-moulded SOIC8 package. ST offers the devices as a package that includes a safety microcontroller, which coordinates airbag activation. Three airbag system ICs, the L9678, L9679, and L9680 meet the demands of applications ranging from entry or mid-level to high-end vehicles with multiple airbag firing loops. These devices, which integrate system power management, sensor interfaces, switch interfaces, and arming safety logic, are responsible for decoding the sensor data and forwarding results to the microcontroller. STMicroelectronics www.st.com 48 Electronic Engineering Times Europe October 2015 www.electronics-eetimes.com


EETE OCT 2015
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