Buck converters

12 October 2011 Power Electronics / Power Management

Diodes Incorporated has introduced a pair of synchronous DC-DC buck converters for applications such as digital TV, LCD monitors and set-top boxes.

Capable of handling continuous load currents of up to 2 A or 3 A, respectively, the AP6502 and AP6503 can support 12 V and 5 V bus systems and are able to achieve efficiency rates as high as 95%. The output voltage is set using an external resistor divider, which can accommodate any output voltage setting down to 0,925 V.

With a switching frequency of 340 kHz, and incorporating low RDS(ON) high-and low-side power MOSFETs, both devices offer an efficient solution, particularly effective for distributed power architectures. In addition, the parts include an external, programmable soft start control input that reduces excess current during initial power-up of the application. The combination of enable and programmable soft start helps in systems requiring power sequencing. Integrated over-current protection and thermal shutdown features stabilise the system and ensure long-term reliability.

Further reading:

Wine farm turns to solar installation for power
Current Automation Power Electronics / Power Management
Slanghoek Wine farm opted into a power purchase agreement to lower overall electricity costs and enter a true sustainable future, with a price-competitive edge on lower running costs.

Read more...

---

Industrial PSU family
Brabek Power Electronics / Power Management
The RACPRO1 family of PSUs supports a universal DC input voltage range from 430 to 850 V DC, allowing the parts to support renewable energy and microgrid applications.

Read more...

---

Integrated POL voltage regulators
EBV Electrolink Power Electronics / Power Management
Infineon’s TDA38807 and TDA38806 are their highest density high-efficiency integrated point-of-load (IPOL) solutions for smart enterprise systems.

Read more...

---

Hi-Rel quarter-brick converters
Accutronics Power Electronics / Power Management
Gaia Converter’s quarter-brick series DC-DC power modules provides output power levels ranging from 75 to 250 W in fixed output voltages.

Read more...

---

1700 V GaN Switcher IC
Future Electronics Power Electronics / Power Management
Power Integrations has introduced a new member of its InnoMux-2 family of single-stage regulated multi-output offline power supply ICs, the industry’s first 1700 V gallium nitride switch.

Read more...

---

How ADI battery management solutions empower safer, smarter robots
Altron Arrow Editor's Choice Power Electronics / Power Management
Choosing an appropriate battery pack and its accompanying battery management system is a critical decision in designing an autonomous mobile robot.

Read more...

---

Industrial power supply range
RFiber Solutions Power Electronics / Power Management
SynQor’s ruggedised AC-DC and DC-DC converters and filters are designed for a wide range of industrial applications, including those required to withstand harsh environments.

Read more...

---

PSUs for industrial applications
Power Electronics / Power Management
RECOM’s REDIIN120/240/480 series of AC-DC converters perfectly corresponds with customer needs by exhibiting high efficiency and low energy consumption at no load.

Read more...

---

Highest density automotive-grade power modules
Altron Arrow Power Electronics / Power Management
Vicor has released three automotive-grade power modules for 48 V EV systems, which deliver industry-leading power density.

Read more...

---

MOSFET for automotive applications
Altron Arrow Power Electronics / Power Management
Infineon’s OptiMOS 7 100 V is offered in the company’s versatile and robust, high-current SSO8 5 x 6 mm² SMD package.

Read more...

---