Tag Archives: half-bridge

New Yorker Electronics is aiming at displacing PowerPAK 1212 packaged mosfets by stocking a pair of symmetric 80V n-channel mosfets in a single 3.3 x 3.3mm package from Vishay. Called SiZF4800LDT, the “device provides designers with a space-saving solution for synchronous buck converters, point-of-load converters, and half-bridge and full-bridge power stages,” according to New Yorker. “In these applications, the high ...

Interest in ~30V half-bridge drivers is increasing here in wonderland, with the Nat Semi LM2725, LM2726 and LM2722 particularly attractive for their automatic dead-band adjustment, 4V minimum operating voltage and easy-to-handle packages. Sadly, they are all also obsolete. Their successor, the LM27222, now from TI obviously, is not at all obsolete, and has some additional automated features, but has an ...

EPC9176 is a GaN-based three-phase inverter with a 81 x 75 mm footprint (with connector) that can operate across 20 to 80V and up to 20A (28A peak). “This voltage range and power level makes the solution ideal for a variety of three-phase brushless dc motor drive applications with 36 to 80V input including eBikes, eScooters, power tools, drones, robots, ...

Nexperia’s app note ‘AN90011 Half-bridge mosfet switching and its impact on emc’ includes a lot of valuable background information, such as how and why to perform double pulse testing, how to set-up a simulation and tips on layout. Well worth a look as it is an easy read for such a technical subject. Hats off to whoever wrote AN90011, which can be ...

AOS has announced a 50W coil-driver for wireless charging transmitters. AOZ32034AQV is a half-bridge, designed to be used in full-bridge circuits driving a resonant tank circuit. “A key feature of this product family is the ability to adjust mosfet gate drive using the slew rate control pin,” said the company. “This allows a designer to trade-off between EMI and efficiency.” Slew ...

Infineon has introduced a 50kW automotive-qualified IGBT half bridge for electric and hybrid vehicles. Called FF300R08W2P2_B11A, and rated to 230Arms, it includes a pair of 750V IGBTs from the company’s EDT2 generation, optimised for 10kHz switching. “The chipset has benchmark current density combined with short circuit ruggedness for reliable inverter operation under harsh environmental conditions,” said Infineon. “The EDT2 IGBTs also ...

Renesas has introduced a pair of 100V half-bridge mosfet gate drivers. HIP2211 is a pin-compatible upgrade to the company’s existing ISL2111 and has separate high-side and low-side PWM input pins, leaving dead-time control up to the host microcontroller. PWM inputs are 3.3V logic and Vdd tolerant. Comes in 8-lead SOIC or 10-lead 4 x 4mm TDFN. HIP2210 handles more internally. It ...

Distributor Richardson RFPD is now stocking a compact GaN transistor 650V 30A half-bridge evaluation board, the GS-EVB-HB-66508, a part announced by GaN Systems late last year. The board was developed by GaN Systems with On Semi, which provides the on-board NCP51820 driver chip, and is also known by the On Semi part number NCP51820GAN1GEVB. With 650V power switches, the part ...

Power Integrations has introduced a 600V half-bridge motor driver with integrated high-side and low-side drive FredFets (fast recovery diode field effect transistors). Branded BridgeSwitch, the parts can be used in inverters of up to 98.5% conversion efficiency in brushless DC (BLDC) motor drives up to 300W. Home-appliances such as refrigerator compressors and HVAC fans are the intended application, said the firm, ...

Aagh, which nit wit named the bridge-less power factor corrector? As the last thing it is, is bridgeless, Instead, the rectifying diode bridge is replaced by four transistors (frequently, with a few diodes thrown in too). So it is still, without doubt, a bridge. I speak as a great fan of transistor-based rectification, having used bipolar transistors and mosfets in ...