DC electronic load offers voltage dropout protection

19 October 2005 Power Electronics / Power Management

The LD300 DC electronic load from Tti (Thurlby Thandar Instruments) has been enhanced by the addition of a low voltage dropout facility. This feature is designed to protect sources such as batteries from damaging levels of discharge by reducing the load current towards zero when the source voltage falls below a user-defined dropout threshold.

The LD300 has maximum input levels of 80 A and 80 V, with a maximum power dissipation of 300 W at 40°C, and has very low internal resistance to allow operation at high currents with low voltage drop. Operation down to 500 mV is possible at currents up to 10 A, rising to 1 V at 40 A, and less than 2 V at 80 A.

There are five different operating modes: constant current, constant voltage, constant power, constant resistance and constant conductance. The value is set by 10-turn controls on the front panel. Alternatively, an external control voltage can be used. Any desired waveform can be applied to simulate complex loads.

Load conditions are displayed using high-accuracy four-digit meters. The voltage of the source can be sensed either internally for convenience or externally for better accuracy. A current monitor output provides a voltage proportional to the current flowing, allowing the behaviour of a source to be viewed on an oscilloscope or external meter.

An internal transient generator can repeatedly switch the load between two different operating levels. The transitions between the levels have a true linear slewing characteristic; with adjustable slew-rate.

The LD300 is fully protected and housed in a compact case measuring 130 x 212 435 mm (half rack width, 3U height) with a mass of 6 kg.

For more information contact Protea Electronics, +27 (0)11 719 5703, c&[email protected]

Further reading:

Next-gen power meter
Electrocomp Express Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.

Read more...

---

Advanced PMIC for high-performance AI applications
ASIC Design Services Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.

Read more...

---

New SiC power MOSFET
Future Electronics Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.

Read more...

---

Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.

Read more...

---

Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.

Read more...

---

Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.

Read more...

---

16-channel multicell battery monitor
Altron Arrow Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.

Read more...

---

Reliable redundancy with the Mibbo M3DN Series
Conical Technologies Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.

Read more...

---

Automotive power-over-coax inductor
RS South Africa Power Electronics / Power Management
TDK has launched the ADL8030VA, a high-performance inductor designed specifically for power-over-coaxial applications.

Read more...

---

Rugged PSU for challenging conditions
Conical Technologies Power Electronics / Power Management
Built for rugged reliability, the Mibbo MFC Series delivers stable, efficient power in environments where moisture, dust, and temperature extremes are everyday challenges.

Read more...

---