At APEC 2024, Power Integrations‘ chairman and CEO, Balu Balakrishnan, “declared war on DC-DC post regulators”, as the company introduced the GaN-based InnoMux-2 switcher IC family. The company said that the new ICs are an example of its value and energy focus because it combines AC-DC and DC-DC stages into a single power converter, resulting in a reduction in power ...
Advanced Energy Industries is showing its NP08 4kW ac-dc power supply at APEC in Long Beach this week. The first member of its NeoPower (NP) family of configurable multi-output supplies, it has eight output slots for configuration and 18W/inch3 claimed density for ~283 x 203 x 64mm chassis. Input is single-phase 90 – 132Vac and 180 – 264Vac. “NP08 also ...
Cosel has announced a series of ac-dc power supplies with enhanced reliability for industrial applications. Called the PDA series, the PSUs are form, fit and function backwards compatible with the company’s 20 year old PBA series, with fewer internal components explaining part of the reliability increase. With more to follow, the initial versions are: PDA15F (15W 31 x 78 x 85mm), ...
Power Integrations has announced the fifth generation of its InnoSwitch isolated fly-back ac-dc converter ICs, which removes the need for primary-side active clamping when operated in zero-voltage switching (ZVS) mode. Called the InnoSwitch5-Pro family, they include 750V or 900V GaN power switches, and the company claims they can be used in converters with over 95% efficiency. “The combination of ZVS ...
Texas Instruments has announced a series of GaN power switches for ac-dc and dc-dc converters that include an integrated driver, protection and current sense emulation. The parts, called LMG362x, differ in the size of the GaN hemt switch included. They are: LMG3622 650V120mΩ 8.5A LMG3624 650V 170mΩ 6A LMG3626 650V 270mΩ 3.6A “Using the LMG3622 only requires setting the desired ...
Vox Power has introduced a compact 600W modular ac-dc power supply with four output slots, and a choice of eight output modules that can be mixed and matched among them. NEVO+600S is the name, and it measures ~41 x 78 x 134mm (plus blade terminals), giving it a 5 x 3inch footprint. “Tailored for demanding industrial applications where size, power ...
Power supply company Pulsiv has developed a graphical technique – a nomogram – to determine critical transformer parameters for fly-back converters operating in discontinuous conduction mode. “This intuitive tool can replace more complex equation-based methods, providing a fast and accurate visual process for identifying primary side inductance and minimum duty cycle,” according to the company. How to use it: Find ...
Cosel has used GaN transistors, planar magnetics and a modified fly-back topology to shrink a family of dc-dc power supplies. Called the TE series, the new supplies come in 45W (TECS45F and TEPS45F) and a 65W (TECS65F or TEPS65F) forms. TEPS versions have connections brought out to PCB pins and have a 1 x 2.3inch footprint, while TECS parts (right) ...
Power Integrations has introduced a 1,250V GaN version of its Innoswitch family of off-line constant-voltage constant-current quasi-resonant fly-back switcher ICs, making the options: 725V silicon, 750, 900 or 1.25kV GaN or 1.7kV silicon carbide. These are multi-die devices in a single package, with synchronous output and a proprietary inductive isolated feedback technique using bond-wires. The new devices have been dubbed ...
Powerbox has announced a ruggedised 1,200W ac-dc power supply for ground-based defense applications and harsh industrial environments. Called OFD1200A and suitable for use inside sealed enclosures, it has a metal chassis and requires cooling by conduction though its baseplate – which needs to be maintained between -40 and +95°C (derating applies sometimes – see the product manual). Shock and vibration ...
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