Magnetics Design & Testing Capabilities

If you are looking for efficiency, size, accuracy, or any other parameters, API will analyze the circuit and work with your design team to find the optimum magnetics solution to improve equipment performance:

Save space
Optimize efficiency by increasing the space
Produce an EMI inductor that fits a specific profile
Fix a failure mode with another magnetics component

Get Quote

Design Input

	Voltage	Current	IND	Turns	Turns Ratio	DCR	Volt-Amp Rating	Accuracy (%)	Hi-Pot Rating	Other
Current Transformers	X	X		X	X	X		X		Burden Resistor
Power Inductor/Choke	X	X		X		X		X	X
Switch Mode Power Supply Inductor	X	X	X	X		X		X	X
Switch Mode Power Supply Transformer	X	X			X	X	X		X
Toroidal Power Transformer	X	X			X	X	X	X	X
Laminate Power Transformer	X	X			X	X	X	X	X
Broadband (RF) Transformer										IL, Coupling, Frequency
Air Coil			X	X		X
Bandpass Filter	X		X					X	X
Audio Transformer					X	X	X	X		Impedance, CMR, THD
Voltage Sense Transformer	X				X	X	X	X	X
Lighting Chokes	X	X	X
Heater Coil						X		X		Heater Specifics
Relay Coil	X					X			X
RF Coupler										IL, Coupling, Frequency
Fielded Directed Coil			X						X	Input Pulse
Flyback Transformers	X	X			X	X			X

Design Variables

	Core Size	Core Shape	Core Material	Wire Size	Bobbin Size	Temp Class	Lead-Free (RoHS)
Current Transformers	X	X	X	X		X	X
Power Inductor/Choke	X	X	X	X	X	X	X
Switch Mode Power Supply Inductor	X	X	X	X	X	X	X
Switch Mode Power Supply Transformer	X	X	X	X	X	X	X
Toroidal Power Transformer	X		X	X		X	X
Laminate Power Transformer	X	X	X	X	X	X	X
Broadband (RF) Transformer	X	X	X	X			X
Air Coil				X			X
Bandpass Filter	X	X	X	X	X	X	X
Audio Transformer	X	X	X	X	X		X
Voltage Sense Transformer	X	X	X	X	X	X	X
Lighting Chokes	X	X	X	X		X	X
Heater Coil							X
Relay Coil	X	X	X	X	X		X
RF Coupler	X	X	X	X			X
Fielded Directed Coil	X	X	X	X			X
Flyback Transformers	X	X	X	X	X	X	X

Test Capabilities

Test Aspect	Units	Min	Max	Notes
Inductance (both w/ and w/o bias, up to 50A)	mH			Up to 3 MHz
Leakage Inductance	mH			Up to 3 MHz
DCR (DC Resistance)	Ohms	1m	10M
ACR (AC Resistance)				Up to 3 MHz
Turns Ratio		1	10000	Up to 3 MHz
Capacitance (inter-winding)	pF			Up to 3 MHz
Polarity
Hi-Pot/DWV (Dielectric Withstanding Voltage)	kV		30
Insertion Loss	dB	0	100	Up to 1500 MHz
Coping Value	dB	0	100	Up to 1500 MHz
Returns Loss	dB	0	100	Up to 1500 MHz
Q			80	Up to 200 MHz
Impedance				Up to 3 MHz
Phase				Up to 3 MHz
Resonance				Up to 3 MHz
Longitudinal Balance
Flyback Transformers
Full Load Testing				Build to suit
Filter Shape Factor and Frequency Response
Hi-Rel, Burn-in, and Various Environmental Testing/Qualification

Production Limitations

	Units	Min	Max	Notes
Wire Size	X	40	8	Have used larger size copper tubing on some air coils and high power field-focused coils.