Three-way dimming approach for compact fluorescents

5 November 2003 Power Electronics / Power Management

International Rectifier has introduced a new approach to three-way dimming systems that are in widespread use in hotels and residential applications. Currently, most three-way dimming systems are compatible only with conventional filament incandescent lamps. The IRPLCFL4 reference design, based on the IR2156 ballast IC, allows compact fluorescent lamps to be dimmed using the existing three-way socket. This means that consumers can replace their wasteful filament light bulbs with an energy-saving fluorescent unit without retrofitting or replacing existing fixtures.

IR says that the IR2156 enables a completely new ballast approach to pre-heating, ignition, frequency control and light output. The IRPLCFL4 reference design incorporates a voltage doubler at the front end in all modes of operation, providing a fixed 300 V d.c. bus. By choosing the dead time and value of the snubber capacitor it is possible to achieve soft switching in all modes of operation.

The reference design contains an IR2156 ballast control IC, a working three-way dimming ballast, board layout and silkscreen files, reference design documentation, bill of materials, data sheet, IR lighting CD-ROM with application notes, design tips and ballast design software.

Further reading:

Powering the IoT
Uniross Batteries Power Electronics / Power Management
Choosing the right battery is not simply a technical detail, but a defining factor in the longevity and cost-effectiveness of any IoT deployment.

Read more...

---

The move to DC infrastructure
IOT Electronics Power Electronics / Power Management
The shift toward direct current infrastructure in data centres is accelerating as operators pursue higher efficiency, improved reliability, and stronger alignment with renewable energy goals.

Read more...

---

Power inductor for automotive applications
Würth Elektronik eiSos Power Electronics / Power Management
The WE-MXGA inductor features RDC values up to 25% lower and a saturation current up to 47% higher compared to other components currently available on the market.

Read more...

---

High-performance DC-DC converter
Conical Technologies Power Electronics / Power Management
With a wide 9 - 40 V DC input range, the Claf Power DWHB400-F24xxN series is a high-performance DC-DC converter family ideally suited for 12 V and 24 V battery-based systems including vehicles, off-grid installations, and distributed power architectures.

Read more...

---

DC-DC converters for next-generation IoT
iCorp Technologies Power Electronics / Power Management
AIPUPOWER’s K78XXJT-500R3 and K78XXJT-500R3-LB give designers a compact, high-efficiency power option for battery-powered and space-constrained systems, combining up to 96% efficiency with no-load input current as low as 0,2 mA.

Read more...

---

240 W in compact form factor
Brabek Power Electronics / Power Management
The cost-effective and reliable RECOM RACPRO1-S240E DIN-rail mount AC-DC series is only 125 x 139 mm and 39 mm wide, yet provides 240 W output.

Read more...

---

You cannot manage what you cannot measure
Power Electronics / Power Management
South African sites are generating solar energy. Most still have no idea what is consuming it… or when, or why. Intelligent load management hardware is changing that.

Read more...

---

Scalable and intelligent power solution
Power Electronics / Power Management
Designed for Africa’s rapidly evolving energy landscape, Bluetti’s ES125 offers a scalable, intelligent power solution that delivers reliable and cost-efficient electricity for uninterrupted operations.

Read more...

---

Simulating grid abnormalities
Conical Technologies Power Electronics / Power Management
Simulating grid abnormalities has become an essential part of validating systems such as inverters, UPS units, photovoltaic inverters, and EV charging infrastructure.

Read more...

---

Evaluation board for STPMIC25 PMIC
Power Electronics / Power Management
The STEVAL-PMIC25V1 is a power management IC evaluation board for the highly integrated STPMIC25, which is designed to manage the power requirements of the core, memory, and interfaces of the STM32MP2x series MPU.

Read more...

---