Application-specific diodes give more efficient PFC

30 July 2003 Power Electronics / Power Management Asset Management

International Rectifier's ETX- and ETL-Series devices are high efficiency diodes for active power factor correction (PFC) in switch mode power supply applications. Power factor correction circuits smooth out the pulsating AC mains current. PFC is legislated under IEC-6100-3-2 standards. The ETX- and ETL-Series diode's characteristics are fine-tuned for maximum efficiency in the specific PFC applications. The PFC-specific diodes enable lower system losses (less heat), and lower stress in switching components in power supplies. This shrinks circuits and creates higher current density for space-restricted, high performance applications. The ETX-Series diodes have very low reverse recovery charge for continuous current mode (CCM) PFC, while the ETL-Series diodes have very low forward voltage drop for discontinuous current mode (DCM) PFC applications. The CCM scheme is used in power supplies rated at 200 W or higher. DCM PFC schemes are more common in power supplies in the 70 to 200 W range.

Further reading:

The importance of power integrity
Spectrum Concepts Power Electronics / Power Management
[Sponsored] Behind every high-speed system lies the need for power integrity. Without it, even the cleanest signal paths become compromised.

Read more...

---

Precise multi-vital sign monitoring
Future Electronics Power Electronics / Power Management
The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.

Read more...

---

Automotive battery diagnostics tester
Comtest Power Electronics / Power Management
Midtronics’ MVT handheld battery tester is a revolutionary tool, powered by MDX-AI, which is set to redefine the standards of battery diagnostics and testing in the automotive industry.

Read more...

---

Advanced 3-phase controllers
Future Electronics Power Electronics / Power Management
The STSPIN32G0 by STMicroelectronics is a family of highly integrated system-in-package providing solution suitable for driving three-phase brushless motors.

Read more...

---

Converting high voltages without a transformer
Altron Arrow Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.

Read more...

---

Reliable power for demanding applications
Conical Technologies Power Electronics / Power Management
The Mibbo Power MTR480 three-phase DIN-rail power supply is engineered to meet stringent industrial automation requirements, offering dependable performance in environments where downtime is not an option.

Read more...

---

Powering performance and precision
Future Electronics Power Electronics / Power Management
onsemi’s innovative T10 series MOSFETs, available in 40 V and 80 V versions, are designed for high-efficiency, fast-switching, and power-dense applications.

Read more...

---

Programmable flyback switcher ICs
Future Electronics Power Electronics / Power Management
Power Integrations has announced the release of the InnoSwitch5-Pro family of programmable flyback switcher ICs, which offer more than 95% efficiency in streamlined AC-DC converter designs.

Read more...

---

Multilayer chip beads with 8 A rating
RS South Africa Power Electronics / Power Management
TDK Corporation has expanded its MPZ1608-PH series of large-current multilayer chip beads for automotive and commercial power supply lines.

Read more...

---

Know where your asset is - not was
IoT & Automation Asset Management
To properly prevent loss of movable assets, companies need an early warning system, traceability throughout the chain of custody, and intelligence on parameters such as temperature, humidity, and impact.

Read more...

---