Wide-input DC-DC converters

27 April 2011 Power Electronics / Power Management

SynQor’s new IQ64 family of industry-standard half brick DC-DC converters has a wide 8:1 input voltage range of 18-135 V, allowing designers to simultaneously satisfy EN50155 requirements for 36 V, 48 V and 72 V railway systems with one converter. The devices use SynQor’s patented two-stage topology with a constant mid-bus voltage, which enables an isolation stage design based on synchronous rectifiers, reducing heat loss and achieving up to 90% efficiency at full load.

The IQ64 series further expands the InQor family of fully encased and ruggedised, isolated DC-DC converters for industrial and transportation applications. The half-brick format is comprised of nine output voltages – 1,8 V, 3,3 V, 5 V, 12 V, 15 V, 24 V, 28 V, 40 V and 48 V. For each output voltage there are two converters: one with a power rating in the 200 W range and a second lower-cost unit in the 150 W range for lower power requirements.

The broad range of output voltages and power levels makes the converter series suitable for a variety of 24 V, 36 V, 48 V and 72 V systems, such as industrial automation, and locomotive and railway electronics. The use of fixed switching frequency technology provides predictable EMI performance which greatly simplifies filtering design. The converters provide on/off control referenced to the input side, remote sense for the output voltage and an output voltage trim range of -20%, +10%. Protection features include input under-voltage lockout, input over-voltage shutdown, output current limit and short circuit protection, active back bias limit, output over-voltage protection and thermal shutdown. All models have at least 4250 V d.c. isolation rating between input and output, have calculated MTBF values in excess of 2 million hours and are fully RoHS compliant.

For more information contact Conical Technologies, +27 (0)12 347 5035, [email protected], www.conical.co.za

Further reading:

Zero drift current shunt monitors
Altron Arrow Power Electronics / Power Management
The NCS21671 and NCV21671 from onsemi are a series of voltage output current sense amplifiers offered in gains of 25, 50, 100, and 200 V/V.

Read more...

---

Schneider Electric partners with Drakenstein Municipality
Schneider Electric South Africa Power Electronics / Power Management
Drakenstein Municipality, situated in Paarl in the Western Cape, is one of the first distribution utilities globally to implement Schneider Electric’s green, SF6-free RM AirSeT switchgear with pure air technology and native digital connectivity.

Read more...

---

E-Mobility: navigate safety, interoperability and conformance
Concilium Technologies Power Electronics / Power Management
Although the concept of electric vehicles is not a new one, the market remains in its infancy, and is not well-regulated or fully operational. This presents a number of challenges for manufacturers throughout the EV and EVSE ecosystem.

Read more...

---

Webinar: Decarbonise with industrial drives
Power Electronics / Power Management
Infineon's TRENCHSTOP IGBT7 and CoolSiC technologies increase the efficiency of your industrial drive design, ultimately resulting in cost savings for you, and a more sustainable future for all.

Read more...

---

Analysis of switch-mode power supply: inductor violations
Altron Arrow Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.

Read more...

---

Compact PCB-mount SMPS
RS South Africa Power Electronics / Power Management
Traco Power’s 5W PCB-mount switch mode power supply (SMPS) offers high efficiency, and is well suited for a variety of applications in the automation, electronics, electrical and mechanical industries.

Read more...

---

AC-DC brick PSU
Conical Technologies Power Electronics / Power Management
These PSUs have a typical efficiency of up to 92%, and a power factor value of up to 0,99. They are available in 12, 24, 28, 48 and 54 V output versions.

Read more...

---

5 kW switching PSU range
Conical Technologies Power Electronics / Power Management
Mornsun has released a new switching power supply range, the LMF5000-25Bxx, which has a 5000 W capacity, and features universal AC input configurations.

Read more...

---

Reliable charging range
Current Automation Power Electronics / Power Management
Whether you’re powering essential electronics, keeping emergency equipment operational, or maintaining the performance of critical machinery, the need for dependable charging solutions cannot be overstated.

Read more...

---

Microchip expands its mSiC solutions
EBV Electrolink Power Electronics / Power Management
The highly integrated 3,3 kV XIFM plug-and-play digital gate driver is designed to work out-of-the-box with high-voltage SiC-based power modules to simplify and speed system integration.

Read more...

---