A wide range of power inductors in many different package sizes and shapes, through hole and surface mount, are available for use in switch mode power supplies, DC/DC converters and EMI filtering applications. From Common Mode toroidal chokes to high capacity linear storage chokes to low cost simple inductors.

SMPS TRANSFORMERS AND INDUCTORS

UAML can supply a complete range of transformers and inductors to meet your specifications for use in SMPSapplications. Formats include, but are not limited to: C-Core, E-Core, Toroidal & Block Cores.A wide variation in winding construction is employed including Multi-strand Copper, Foil, Litz, Heavy DutyCopper, Triple Insulated Wire and Margin Tapes. Our experienced design and purchasing groups can help withsourcing of cost-effective alternative materials, requirements for safety standards (e.g. EN60065, EN60950, etc.)and in providing design assistance.

• Drive Transformers
• Control Transformers
• Flyback Transformers
• High Current Inductors
• Current Transformers
• Common Mode Chokes
• Output Chokes

Current Sense inductors and transformers for frequency ranges from 20-200kHz with primary ratings to 100A.
Custom design including special housings and core materials in accordance with customer requirements
UAS Series: High Frequency Current Sensors are designed as a low cost method of controlling, monitoring ormeasuring AC currents. The sensors serve as feedback elements between the output and pulse control circuitryproviding accurate regulation of switch mode power supplies. Frequency range from 20kHz to 200kHz, primarycurrent rating to 80 Amps.
Standard range of 50/60Hz CT’s for sensing current overload.
Primary current ratings from 1 to 200 Amps
UASM Series: Mains Frequency Current Sensors operate as the sealedsecondary of a current transformer while the conductor carrying thecurrent to be measured functions as a one turn primary. Applicationsinclude detection of branch circuit overload and load drop or shutdown.Primary current ratings from 1 to 100 Amps.
UAC Series 50/60Hz Current Transformers - Typical applications include sensing overload curent, ground faultdetection, metering and analog to digital circuits. Thirteen sizes ranging from 5 to 200 Amps

High Frequency Toroidal Transformers

Universal Application Ideal construction, small size and low weight(approximately 50% of conventional transformers) together withextremely low noise and low radiated magnetic interference make thetoroidal transformer ideal for compact power supplies and provide thedesign engineer with a very high level of flexibility. Typical applications include:

• Medical Equipment
• Audio Line Matching
• Motor Controls
• Computers and Peripherals
• Low Voltage Lighting
• Office Machines
• Instrumentation
• Industrial Control Equipment

Open Wound Toroidal Transformers
• Single 230V, 50/60Hz primary winding with dual secondary windings which may be connected in series orparallel or used independently. Twelve sizes from 15 to 1000VA.
• Two 115V, 50/60Hz primary windings suitable for connection in series to 230V supply, or parallel to 115V supply.Dual secondary windings may be connected in series or parallel or used independently. Twelve sizes from15 to 1000VA.
Standard open wound transformers are supplied with dished washers and neoprene protection pads for singlehole fixing.

‘Mini’ Series miniature transformers with two 115V, 50/60Hz primarywindings suitable for connection in series to 230V supply, or parallel to115V supply. Dual secondary windings may be connected in series orparallel or used independently. Nine VA sizes from 1.6VA to 50VA withsix different secondary output voltages per size. Each transformer issupplied with a throughhole resin center for single bolt fixing.
Open wound toroidal transformers are UL recognized for insulation Class A (105°C) and meet all requirementsof Class E (120°C). Secondary voltage tolerance <1% at nominal input.

Encapsulated Transformers
Single 230V, 50/60Hz primary winding with dual secondary windings may be connected in series or parallel or used independently. Nine standard sizes from 15 to 500VA. The transformers have a through-hole center for single bolt fixing.
Control Panel Transformers
High quality transformers with single 230V or 400V primary windings and center-tapped secondary windings. The transformers are mounted on SFB style brackets for vertical mounting and supplied with touchproof screw terminals. Available in four standard VA sizes, the choice of either a 230V or 400V primary and 12V, 24V or 55V secondary.
Low Voltage Lighting Transformers
Open style toroidal transformers with a single 230V, 50/60Hz primary winding and a single 11.8V secondary winding suitable for 12V halogen lamps. The primary incorporates an auto-reset thermal switch rated at 120°C±5°C. Four standard sizes from 50 to 200VA. Transformers supplied with dished washers and Neoprene protection pads for single hole fixing.

UAML offers a custom-design service where our engineersdesign the most suitable power transformer for your application.Our engineers work closely with customers, providing the technicalsupport needed to achieve effective solutions to power conversionrequirements. Working from the required DC output figures, andconsidering the capacitor types, rectification and regulators involved,our design engineers use their comprehensive experience to designand build optimum product for the application.
Generally the equipment designer is faced with the problem of‘squeezing’ the power transformer into a confined space, and we,With the UAML ability to provide instant EN61558 approval on custom designed transformers, theequipment designer does not need to adjust his design to suit a “standard” transformer just to get an approvedpart.
Advantages of UAML Toroidal Transformers
• Small size and low weight compared with traditional stackedlaminated types
• Extremely low level of radiated magnetic field
• Very low induced noise (hum)
• Very low iron loss
• Double insulated primary leads
• 100% electrical and flash tested
• High quality manufacturing and testing in accordance to EN61558,EN60742, EN60950, EN60065, VDE0551, VDE0550 and BS415
• Tested and Approved by KEMA to EN61558
• UL Recognized to UL506, under family approval file E215495
• ISO-9001 certified UAML production and design facility
• Encapsulated models are fully potted to UL94V-0
• Nylon 66 case material meets UL94V-0
• Available from 1.6VA through 7.5kVA
Encapsulation
If a suitable encapsulation is not available from UAML’s extensive range of housings, we can develop a housingquickly and inexpensively specifically for your application.
Mounting
We have a wide variety of mounting methods to meet the most stringent customer requirements, including:
• standard mounting kits consisting of dished washers withneoprene pads (15VA - 1,5kVA).
• resin center fill with brass inserts or a through hole
• PCB mounting
• pressureless mounting plates (750VA - 7.5kVA)
• fully encapsulated in plastic or metal housings