ON Semiconductor has announced two new QR PSR PWM controllers for LED lighting with power factor control (PFC) function. The dimmable NCL30386 and the non-dimmable NCL30388 provide options for designers of LED lighting units such as luminaires used in office and industrial building applications.
Both devices are high power factor, single stage, constant current and constant voltage, primary side regulated pulse width modulation controllers for flyback, buck-boost or Sepic power topologies. They operate in quasi-resonant mode to achieve efficiency levels that exceed those stipulated in power standards such as the EU’s Ecodesign as well as ENERGY STAR and the NEMA SSL regulations.
The integrated digital PFC algorithm ensures a power factor of greater than 0,95 and total harmonic distortion (THD) of less than 10% across a universal input voltage range. Integrated high-voltage startup current source ensures fast startup, low standby power and wide-range operation at the output. Current and voltage are regulated via a digital primary side regulated CC/CV loop control, typically achieving in the region of ±2%, to give highly uniform lighting brightness under all conditions.
The devices are simple to use and operate from a wide Vcc range of 9,2 - 26 V d.c., with valley lock-out and frequency foldback ensuring high efficiency across the entire voltage range. Design is further simplified by the inclusion of safety features such as brown-out and over-voltage protection, plus the ability to detect short circuits in the output, winding and diode.
Neither the NCL30386 nor the NCL30388 require many external components to complete the design. Additionally, the NCL30386 offers dimming features, including the option for either linear or quadratic dimming curves. The wide analog dimming range is controlled by two dedicated analog / PWM control pins that allow for precise dimming with a 0,5% minimum dimming ratio and no audible noise present.
Quality batteries are critical for IIoT Uniross Batteries
Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.
Read more...12 kW hybrid inverter
Power Electronics / Power Management
Sungrow recently unveiled its next-generation residential energy storage solution, expanding its power range from 5 kW to 12 kW with the introduction of the new MG12RL hybrid inverter.
Read more...40 W and 75 W railway DC/DC converter Brabek
Power Electronics / Power Management
RECOM has announced two new cost-efficient DC/DC converters for the rail market with an ultra-wide 11:1 input range to cover all nominal input voltages from 24 to 110 V DC.
Read more...Power modules for solid-state transformers RS South Africa
Power Electronics / Power Management
Microchip’s new 3,3 kV silicon carbide modules deliver the required thermal performance and efficiency for SSTs to increase power available for token generation.
Read more...Solving South African power problems with locally built intelligence
Editor's Choice Power Electronics / Power Management
Smart metering infrastructure in South Africa remains patchy. The rollout has been slow, coverage is inconsistent, and for the most part, granular per-unit measurement simply does not exist.
Read more...Wide range power module
Power Electronics / Power Management
The latest DC-DC modules from Würth Elektronik are characterised by high resilience to voltage transients on the 24 V bus and an extremely wide input-voltage range from 3,5 V to 38 V.
Read more...Edge AI improves condition monitoring EBV Electrolink
AI & ML
STMicroelectronics has introduced the IIS3DWB10IS, an intelligent MEMS vibration sensor designed for high-performance industrial condition monitoring applications.
Read more...Selecting primary batteries for maximum service life Uniross Batteries
Power Electronics / Power Management
Primary batteries play an important role in IoT applications. Designed for longevity, they have a high-energy capacity and are often used in standalone applications where charging is impractical or impossible.
Read more...Industrial time-of-flight proximity sensor EBV Electrolink
Opto-Electronics
STMicroelectronics’ VL53L4ED is a compact, high accuracy time-of-flight proximity sensor designed for industrial and embedded applications that require precise short range distance measurement.
Read more...4 kW e-mobility DC-DC converter Brabek
Power Electronics / Power Management
The RECOM RMOD4000 series of compact, plug-and-play DC-DC converters is a cost-effective solution to provide isolated 14 V, 28 V, or 56 V DC network rails from a high input voltage between 180 and 950 V DC.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version