700 W half-brick converter

14 June 2017 Power Electronics / Power Management

Artesyn Embedded Technologies has launched a new 700 W half-brick DC-DC converter module, the ADH700 series. The first model available offers a 28 V nominal output and is designed to support the popular use of LDMOS technology used in high-power wireless base station deployments. LDMOS stands for ­laterally diffused metal oxide semiconductor and is a dominant device technology used in high-power RF power amplifier (PA) applications for cellular infrastructure.

The ADH700 series nominal 28 V model can deliver up to 28 A output current and offers a wide trim range of 14 V to 33 V. Housed in the industry standard half-brick format (61,0 x 57,9 mm) the ADH700 series is just 12,7 mm high. The converter series offers greater than 95% typical efficiency and a wide input range of 36 to 65 V.

An aluminium baseplate structure gives ADH700 series modules excellent thermal performance. The 28 V model can operate between -40°C and +85°C ambient temperature, and can continue to operate at full power up to 100°C baseplate temperature without air cooling. The conversion technology employs 280 kHz fixed-frequency switching to help minimise external EMI filtering requirements.

Other features include remote enable, remote output sense and trim, with protection features such as input under-voltage lockout, output over-current and over-voltage protection, and over-temperature protection. No minimum load requirement helps to increase reliability and contributes to an MTBF of two million hours.

For more information contact Pieter Engelbrecht, Avnet South Africa, +27 (0)11 319 8600, [email protected], www.avnet.co.za

Further reading:

Rugged railway-grade DC-DC power modules
iCorp Technologies Power Electronics / Power Management
iCorp Technologies has introduced the AIPUPOWER ZCD100 and ZCD150 Series, a family of rugged DC-DC converters designed to meet the demanding electrical and environmental requirements of railway and transportation systems.

Read more...

---

Four-quadrant regenerative grid simulator
Conical Technologies Power Electronics / Power Management
The IT7900EP series high-performance regenerative grid simulator from ITECH is a full four-quadrant AC grid simulator capable of both sourcing and sinking power.

Read more...

---

90 W PSU with 150% boost capability
Brabek Power Electronics / Power Management
RECOM’s cost effective REFIN2U-S90/CL DIN rail AC/DC boasts a 90 W rating with a boost capability of 150% for 4,5 seconds to allow for surge loads.

Read more...

---

Standalone USB PD controller
Future Electronics Power Electronics / Power Management
The STUSB4531 from STMicroelectronics is a standalone USB Power Delivery sink controller designed to streamline the implementation of USB-C power negotiation in sink devices without requiring a full software stack on a host microcontroller.

Read more...

---

Power module enhances AI data centre power density
Altron Arrow Power Electronics / Power Management
Microchip’s MCPF1525 power module with PMBus delivers 25 A DC-DC power and is stackable up to 200 A.

Read more...

---

MIL-Spec DC-DC power converters
Vepac Electronics Power Electronics / Power Management
PowerGood has introduced a range of 15 W to 600 W military DC-DC power converters engineered for mission critical defence applications.

Read more...

---

Compact power MOSFET for high current switching
Future Electronics Power Electronics / Power Management
onsemi’s NTMFSC2D6N08X is a high-performance 80 V N-channel power MOSFET engineered for demanding switching and power conversion applications.

Read more...

---

DC link capacitors for demanding applications
RS South Africa Power Electronics / Power Management
TDK Corporation has announced the B3271xP series of DC link film capacitors, offering high thermal robustness for demanding automotive and industrial power electronics.

Read more...

---

N-channel power MOSFETs
TRX Electronics Power Electronics / Power Management
The TSM2N7002 series from Taiwan Semiconductor are logic-level N-channel power MOSFETs designed with low drain-source on-state resistance, reducing conduction losses and improving efficiency in switching applications.

Read more...

---

Smart power protection, simplified
TRX Electronics Power Electronics / Power Management
onsemi electronic fuses (eFuses) deliver integrated, intelligent protection by combining overcurrent, overvoltage, over-temperature, reverse polarity, and inrush current safeguards in a single compact IC.

Read more...

---