Power Electronics

Power Electronics and Energy Management or PEEM blog of delabs Technologies has a Focus of Power Supplies and Instruments related to Energy Testing.

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Wednesday, August 05, 2020

Schumacher Electric - Battery Chargers and Power Inverters

Since 1947 they have been in manufacturing and marketing of battery chargers, portable power sources, inverters/converters, battery testers, 12V accessories, and welding equipment.

Schumacher Electric - Battery Chargers and Power Inverters

 https://www.batterychargers.com/

Schumacher Electric started originally by designing and producing custom-built transformers for the electronic industry.

PST-900X ProSeries Battery Tester with a Printer

This is 3 Testers Battery, Charging and Starting in one instrument. Easy to use with 3 Button Operation and used for testing 6 & 12 volt batteries.

PST-900X ProSeries Battery Tester with a Printer

It is also helpful in evaluating 12 & 24 volt charging systems. It has a 16 Character LCD with Adjustable Backlighting. Includes Case, Clamps, Batteries.

Before you start testing - Precautions - (from the user manual)

Be sure the area around the battery is well ventilated while the battery is being tested.

Clean the battery terminals. Be careful to keep corrosion from coming in contact with your eyes.

Inspect the battery for a cracked or broken case or cover. If the battery is damaged, do not use the tester.

If the battery is not a sealed maintenance free battery, check the level of each cell and if necessary, add distilled water until the battery acid reaches the level specified by the manufacturer. This helps purge excessive gas from the cells. Do not overfill.

If it is necessary to remove the battery from the vehicle to test it, always remove the ground terminal from the battery first. Make sure all accessories in the vehicle are off to ensure you do not cause any arcing.

Schumacher Electric Corporation
801 Business Center Drive, Mount Prospect, IL 60056, USA.

Battery Systems from Cadex Electronics

They design and manufacture Battery analyzers, chargers, rapid-testers and monitoring systems. They also create custom test solutions in Power Electronics. https://www.cadex.com/

Battery Systems from Cadex Electronics

Products Include - Cadex C7000 Series battery analyzers, Battery Maintenance and Testing Systems. The Cadex C5100 battery tester. Spectro CA-12 Series is the first hand-held battery tester.

Cadex C8000 Advanced Battery Testing System

Cadex C8000 Advanced Battery Testing System

The Cadex C8000 is more than a programmable power supply and load bank; the instrument provides intelligence to assist in battery testing.

"You can capture load signatures of power tools and laptops and then perform simulated battery runtime by replying the stored data. Add a thermal chamber, external load bank and other accessories,"

Cadex Electronics Inc.
22000 Fraserwood Way Richmond, BC V6W 1J6 Canada

K2 Series High Capacity Cells - Maxwell

The K2 Series ultracapacitors are a third generation design that provides 2.7 volt operating voltage while improving Maxwell's high performance and high reliability on a high volume manufacturing platform.  - https://www.maxwell.com/

K2 Series High Capacity Cells - Maxwell

This type of caps are also an ideal source of back-up power. It can provide extended power availability, allowing critical information and functions to remain available during dips, sags, and outages in a power supply or battery change.

K2 Series High Capacity Cells - Maxwell

The K2 2.7V series works in tandem with batteries for applications that require both a constant power discharge for continual function and a pulse power for peak loads. In these applications, the ultracapacitors relieve batteries of peak power functions, resulting in extended battery life and a reduction in overall battery size and cost.

Maxwell Technologies, Inc.
3888 Calle Fortunada, San Diego, CA, 92123, USA

Friday, July 10, 2020

ROV Metal Oxide Varistors Raychem

The ROV device's high current-handling and energy absorption capability, fast response, and low cost can make it suitable for use in line voltage applications.

ROV Metal Oxide Varistors Raychem

"ROV metal oxide varistors help protect power systems from damage caused by transient overvoltage faults such as lightning, power contact, and power induction. Suitable for a broad range of applications, ROV devices help protect sensitive electronic equipment from potential power surge damage by clamping high-energy, short-duration impluses."

ROV Metal Oxide Varistors Raychem Tyco

"An ROV device is a varistor fabricated using a Zinc Oxide (ZnO) powder, sintered with other metal oxide ceramics. The resulting structure is a polycrystalline ceramic that consists of distributed ZnO grains, separated by other metal oxide ceramics."

Raychem Circuit Protection Products

"A varistor is a variable resistor-a voltage dependent, non-linear device whose resistance decreases as the voltage applied across the device increases. "

ROVs can also be used to help protect electrical equipment from damage caused by large voltage or power transients on the AC Mains inputs. In a coordinated circuit protection scheme the ROV can be paired with a PolySwitch overcurrent protection device to help improve equipment reliability and fulfill IEC-61000 test requirements.

Thermally Protected Suppressors - Dean Technology

CKE is a line of high voltage and high power silicon rectifiers, MOVs, selenium suppressors, silicon carbide varistors, and assemblies. These products are appropriate for a wide range of applications, and find a special fit in the power generation, resistance welding and RF power systems markets.

Thermally Protected Suppressors - Dean Technology

 Thermally Protected Suppressors - Dean Technology

22 to 50 kA, 150 to 690 VAC, 25nS Maximum

Dean Technology inc.

Dean Technology, Inc. has a long and exceptional history providing world-class products, design, and solutions for high voltage and high power markets and applications.

Dean Technology, Inc.
P.O. Box 700968, Dallas, Texas 75370, USA.

TMOV34S Thermally Protected Varistor - Littelfuse

It consists of a 34mm square format varistor element ( MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal over-voltage, limited current conditions as outlined in UL1449. - https://www.littelfuse.com/

TMOV34S Thermally Protected Varistor - Littelfuse

The device has a third lead, an indicator lead, which may be used to indicate that the MOV has been disconnected from the circuit.

TMOV34S Thermally Protected Varistor - Littelfuse

The integrated configuration also offers lower inductance than most discreet solutions resulting in improved clamping performance to fast over voltage transients.

Thursday, May 14, 2020

Matsusada Precision - HV Systems

Develops, manufactures HV Precision Supplies, X-ray products and Opto-Semiconductors Systems.

Matsusada Precision - HV Systems

Power Supplies including High Voltage Power Supply, DC Power Supply, and AC Power Supply -Design, Development, Production, and Sales.

Matsusada Precision

Analytical Instruments, Optical Semiconductor Devices as well as Optoelectronic Applications -Design, Development, Production, and Sales-

Matsusada Precision Inc
745 Aojicho Kusatsu, Shiga 525-0041 Japan

TDK Lambda - SMPS UPS Power Supply Specialist

"Switching power supplies are power supplies switched by high-speed semiconductor switches. They are the most common type of compact, lightweight, high-efficiency power supply. Uninterruptible power systems (UPS) are backup power supplies that use a built-in battery to stably supply continuous clean power to connected devices when the regular supply power shuts down due to a power failure or other power problem. TDK-Lambda offers both these types of power supplies".

TDK Lambda - SMPS UPS Power Supply Specialist

CME150-24 - Single output AC-DC converter 150 - TDK Lambda

CME150-24 - Single output AC-DC converter 150 - TDK Lambda

Features Include
  • Leakage current 0.3mA or less (at 265VAC)
  • EMI/EMS class B approved.
  • Medical safety standard (IEC60601-1) approved.
  • Output voltage 24V
  • Max output current 6.3A
  • Max output power 151.2W
  • Effeciency 82%
  • Input voltage range AC 85 - 265 V
  • Input voltage range DC 120 - 370 V
  • Input frequency 47 - 63 Hz