Zahn Electronics, Inc. - SD1 Step Down DC/DC Converters

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4133 Courtney St. Unit #5

Franksville, WI 53126

Phone: (262) 835-9200

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EMAIL zahn@zahninc.com

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Step Down DC/DC Converters
Using Buck Converter Topology, and programmable single direction or bi-directional current, these products can be used as current regulators or voltage regulators or current limiters or voltage limiters. Applications are Battery Chargers, Lamp Regulators, UPS PowerSupplies, and Fuel Cell Converters. Load current limit can be remotely controlled.

Vin to Vout (Vin must always be greater thanVout)	$$$
48v to 12v @ 160W 36v to 12v @ 170W 24v to 12v @ 180W 48v to 24v @ 280W	$99	Output is adjustable, on board. Current Limit is fixed.
30v to 12v @ 500W 30v to 24v @ 600W 48v to 12v @ 400W 54v to 24v @ 672 W	$303 $303 $294 $306	Output on two units is adjustable, on board, fixed on remaining. Current Limit is fixed.
36v to 14v @ 1120W	$474	Output Voltage and Current Limit are fixed.
36v to 24v @ 864W 36v to 24v @ 1200W 48v to 32v @ 1600W 72v to 60v @ 1560W 72v to 60v @ 2160W 120v to 80v @ 2080W 120v to 80v @ 2880W 125v to 100v @ 1500W 125v to 100v @ 2000W 180v to 125v @ 1625W 180v to 125v @ 2250W 250v to 125v @ 625W	$835 $950 $1080 $823 $907 $823 $907 $955 $1012 $955 $1098 $1135	NOTE 1
36v to 12v @ 1080W 48v to 12v @ 960W	$1444 $1444	NOTE 1

More below.

36v to 24v @ 2160W 36v to 24v @ 3000W 48v to 36v @ 3240W 48v to 36v @ 4500W 72v to 48v @ 3120W 72v to 48v @ 4320W 72v to 48v @ 5040W 100v to 72v @ 5760W 160v to 90v @ 5760W 180v to 90v @ 2880W 180v to 90v @ 4050W 250v to 125v @ 2500W	$1577 $1986 $1838 $1986 $1606 $1981 $2107 $2107 $2484 $1830 $2260 $2353	NOTE 1
48v to 36v @9000W 63v to 48v @11,600W 80v to 60v @10,656W 80v to 60v @ 12,600W 120v to 74v @11,776W 120v to 74v @11,776W 200v to 150v @13,392W 300V to 220v @ 8828W	$3320 $3558 $3495 $3591 $3608 $3608 $3609 $3387	NOTE 1
24v to 12v @ 3000W 36v to 24v @ 6000W 36v to 12v @ 3000W 48v to 36v @ 9000W 48v to 24v @ 6000W 48v to 12v @ 3000W 72v to 50v @ 8000W 72v to 50v @ 16,000W	$2726 $2726 $2726 $2726 $2726 $2726 $2726 $5452
36v to 24v @ 6000W 66v to 48v @ 10,080W 72v to 48v @ 7680W 140v to 100v @ 12,000W 180v to 125v @ 11,250W 300v to 200v @ 8000W	$3,832 $4,292 $3,920 $4,365 $4,365 $4,450	NOTE 1

NOTE 1:

Output Voltage and Output Current Limit are adjustable either on board or remotely. Output Voltage can be adjusted to zero. Output Voltage is tunable. There is a disable input that can be pulled up to +5v or +12v. There are +/- 5v supplies available to the user. Can be set up for 1 or 2 quadrant operation. Fault relay provided. Switching frequency is programmable and is crystal controlled. There are filters for Reference and Feedback voltages.Current Reference can be brought out to external pin. Control electronics is isolated from power electronics.