Addition to 'energy-saving' power conversion IC range

4 June 2003 Power Electronics / Power Management

Power Integrations has added a lower cost part to its LinkSwitch family, continuing its campaign to replace 'energy vampire' linear transformer chargers and adapters with smaller, more efficient switching designs. The new LNK500, a high-voltage monolithic power conversion IC, uses the same innovative primary switching power supply topology as the current LNK501, but takes full advantage of the loose output current characteristic of most low-end linear transformer designs, according to the company.

LNK500's wider output current tolerance of ±25% allows for lower system cost, the most critical barrier in replacing older linear transformer designs. Switcher benefits of a LinkSwitch-based power supply include smaller size, lighter weight, superior performance, and significantly higher energy efficiency.

With as few as 14 components, the LNK500, using the company's EcoSmart technology, can enable a fault-protected, universal input (85 to 265 V a.c.), constant voltage (CV) or constant voltage, constant current (CV/CC) output switching power supply that meets worldwide energy efficiency standards.

Applications for the LNK500 include linear transformer replacement in adapters and battery chargers for a wide range of personal electronics and consumer products.

The 3 W LNK500 part is offered in a plastic DIP-8 package or an 8-pin surface-mount package. A Design Accelerator Kit (DAK-16A), containing two operational 2,75 W universal input AC-DC adapters, product samples and the company's power supply design software program, PI Expert, is also available.

For more information contact Memec SA, 011 897 8600.

Further reading:

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...

---

Dual-port USB-C power delivery solution
Altron Arrow Power Electronics / Power Management
Infineon’s CYPD7272-68LQXQ is the tray packing option of the company’s dual-port USB-C power delivery solution and features an integrated dual-port USB-C PD + DC-DC controller.

Read more...

---

Parallel redundancy power module
Conical Technologies Power Electronics / Power Management
The LIR40-40 is a wide input range DC-DC module, with a constant output of 48 V at a nominal output current of up to 40 A.

Read more...

---

Motor protection relay front-end
NewElec Pretoria Power Electronics / Power Management
Newelec’s Motor Protection Relay front-end software isn’t just another tool, it’s a game changer that puts control firmly in your hands.

Read more...

---

High-power three-phase supplies
Current Automation Power Electronics / Power Management
The units from Meanwell can either be supplied with a three-phase three-wire delta input of 196 to 305 V AC, or they can use a three-phase four-wire star connection of 340 to 530 V AC.

Read more...

---