Search results for "capacitor"
DN74 ZXSC400 Photoflash LED reference design
This design note shows the ZXSC400 driving a Photoflash LED. The input voltage is 3V with a maximum pulsed output current of 1A for 2ms.
Detection by deflection; capacitive touch sensing with all-metal front panels
Touch-screen and touch-panel interfaces have rapidly assumed the position of input-medium-of-choice in a wide variety of application spaces, driven to a large extent by the success of portable products such as Apple's iPhone and iPad. Touch-driven interfaces have a long history prior to the current phase of widespread acceptance in the consumer electronics space; a wide variety of sensing technologies, and a great deal of ingenuity, have been app...
The multi-stage off line LED driver
Although it is relatively straightforward to design a basic LED driver for a general lighting application, it becomes far more complex when additional functionality such as phase cut dimming and power factor correction are also required. A non-dimming LED driver with no power factor correction generally consists of an off line switching power supply configured to regulate the output at a constant current. This is not much different from a standar...
Power Integrations Announces LED Driver Reference Design for High-Efficiency Universal-Voltage Fluorescent Tube Replacement
Power Integrations today announced a new reference design (DER-286) describing a 30 W LED driver tube replacement ballast power supply capable of achieving industry-leading efficiency levels of over 90% across a wide input-voltage range while meeting worldwide requirements for power factor (PF) and total harmonic distortion (THD).
Constant-Current Buck Regulator
ON Semiconductor's NCL30160 Constant-Current Buck Regulator is an NFET hysteretic step-down, constant-current driver for high power LEDs. Ideal for automotive, industrial and general lighting applications utilizing the minimal external components.
Energy harvesting for vehicles
Energy harvesting comes to the fore with electric vehicles because the price they pay for being environmental and exhibiting many performance advantages is that they have limited energy available. In and on these vehicles, the energy snatched from heat, light, movement and other sources may be milliwatts or less to drive wireless sensors and actuators, watts for self sufficient lighting clusters (still in development) or - the main focus - up to ...
High Voltage Surge Stopper with Current Limit Shields Sensitive Electronics from Transients Beyond 100V
Linear Technology Corporation introduces the LT4363, an overvoltage protection controller that provides overvoltage and overcurrent protection to high-availability electronic systems. Supply voltages surge whenever currents flowing through long inductive power buses change abruptly. Also, automotive batteries experience a condition known as load-dump, where the voltage can stay elevated for many milliseconds. Traditional protection circuitry reli...
±250°/sec Yaw Rate Gyroscope
The ADXRS622 is a complete angular rate sensor (gyroscope) that uses the Analog Devices, Inc., surface-micromachining process to make a functionally complete and low cost angular rate sensor, integrated with all of the required electronics on one chip. The manufacturing technique for this device is the same high volume BiMOS process used for high reliability automotive airbag accelerometers.
Murata - Fail safe ceramic capacitor for automotive applications
Murata has announced the launch of the GCE series of monolithic ceramic capacitors that are less prone to failure due to mechanical stress.
Intersil Introduces AEC-Q100 Qualified, Automotive Version of Popular Dual Synchronous Step-Down DC/DC Regulator
Intersil Corporation has developed an AEC-Q100 qualified version of the ISL8088 – an industry-leading, high efficiency, dual synchronous step-down DC/DC regulator. The ISL78228 is designed to provide regulated power for use in remote safety cameras, infotainment systems, control modules and many other space-constrained automotive applications.