PFC ICs

6 July 2011 Power Electronics / Power Management

New from International Rectifier is the IR115x family of μPFC power factor correction (PFC) ICs for a wide variety of AC-DC applications including lighting, LCD/PDP TV and game console switch mode power supplies, fans, air conditioners and uninterruptible power supplies ranging from 300 W to 8 kW.

The devices, utilising IR’s ‘One Cycle Control’ technology, offer high power factor, low total harmonic distortion and stable DC bus regulation. They are designed to operate in continuous conduction mode boost PFC converters with average current mode control over 85–264 V a.c. input line voltage range. The ICs offer a dedicated pin for over-voltage protection, cycle by cycle peak current limitation, open loop protection, VCC UVLO and programmable soft-start. The user initiated micropower startup/sleep-mode enables compliance with standby power requirements mandated by regulations such as Energy Star, Green Power and Blue Angel. The IR1152S and IR1153S also feature brown-out protection.

The IR1155S offers programmable switching frequency between 48 kHz and 200 kHz based on the specific application requirement. The IR1152S and IR1153S offer fixed switching frequencies of 66 kHz and 22,2 kHz respectively. These devices are compatible with IR’s Ultrafast and Warp IGBTs for systems with power ratings higher than 750 W and switching frequency up to 100 kHz.

For more information contact Robin Scholes, Avnet Kopp, +27 (0)11 809 6100, [email protected], www.avnet.co.za

Further reading:

Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.

Read more...

---

16-channel multicell battery monitor
Altron Arrow Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.

Read more...

---

Reliable redundancy with the Mibbo M3DN Series
Conical Technologies Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.

Read more...

---

Automotive power-over-coax inductor
RS South Africa Power Electronics / Power Management
TDK has launched the ADL8030VA, a high-performance inductor designed specifically for power-over-coaxial applications.

Read more...

---

Rugged PSU for challenging conditions
Conical Technologies Power Electronics / Power Management
Built for rugged reliability, the Mibbo MFC Series delivers stable, efficient power in environments where moisture, dust, and temperature extremes are everyday challenges.

Read more...

---

Enhance SiC device efficiency using merged-pin Schottky diodes
NuVision Electronics Editor's Choice Power Electronics / Power Management
Silicon carbide (SiC) has advantages over silicon (Si) that make it particularly suitable for Schottky diodes in applications such as fast battery chargers, photovoltaic (PV) battery converters, and traction inverters.

Read more...

---

15 W power module with wide input range
Brabek Power Electronics / Power Management
RECOM’s miniature power modules provide 15 W output and operate over a wide input range of 18-264 V AC or 18-375 V DC.

Read more...

---

Industrial-grade DIN rail PSU
Conical Technologies Power Electronics / Power Management
The Mibbo MTR960W is a reliable and cost-effective PSU option that delivers a solid 960 W of output power at 24?or 48 V DC.

Read more...

---

Energy harvesting and Matter for smarter homes
RF Design Power Electronics / Power Management
Qorvo’s collaboration with e-peas on the Matter Enabled Light Switch marks another significant step in advancing Matter adoption across the IoT industry.

Read more...

---

3-terminal filters for automotive applications
RS South Africa Power Electronics / Power Management
TDK has expanded its YFF series of 3-terminal filters for automotive applications to include higher voltages up to 35 V and higher capacitances up to 4,7 µF.

Read more...

---