PWM controller increases efficiency and saves space

2 May 2007 Power Electronics / Power Management

Intersil's ISL6535 is a high performance synchronous controller for demanding DC-DC converter applications. It provides overcurrent fault protection and is designed to safely startup into pre-biased output loads. The output voltage of the converter can be precisely regulated to as low as 0,597 V, with a maximum tolerance of ±1% over the commercial temperature range, and ±1,5% over the industrial temperature range.

The ISL6535 provides simple, single feed-back loop, voltage mode control with fast transient response. It includes a triangle-wave oscillator that is adjustable from below 50 kHz to over 1,5 MHz. Full (0-100%) PWM duty cycle support is provided.

The error amplifier features a 15 MHz gain-bandwidth product and 6 V/μs slew rate, which enables high converter bandwidth for fast transient performance. The ISL6535's overcurrent protection monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor. It operates from +12 V input.

For more information contact Andrew Athanasiou, Arrow Altech Distribution, +27 (0)21 555 1884, [email protected]

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...

---