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VHK100W-Q24-S3R3 Datasheet(PDF) 10 Page - CUI INC |
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VHK100W-Q24-S3R3 Datasheet(HTML) 10 Page - CUI INC |
10 / 10 page page date DESCRIPTION: chassis mount dc-dc converter 10 of 10 08/2009 20050 SW 112th Ave. Tualatin, Oregon 97062 phone phone 503.612.2300 fax www.v-infinity.com fax 503.612.2383 PART NUMBER: VHK100W note: The recommended components are a starting point but not guaranteed for meeting these EMI requirements. More or less filtering may be required for a specific application or to meet other EMI standards, e.g.MIL-STD-461 18. OUTPUT FILTERING The converter has built-in capacitors at the output to control ripple and noise. If desired, additional output capacitance can be introduced at the input to the powered equipment. Recommended starting point: one 10μF tantalum and one 1μF ceramic capacitor in parallel at the output. 19. OUTPUT NOISE MEASUREMENT SCHEMATIC For proper output ripple and noise measurement, connect a 10μF tantalum and a 1μF ceramic capacitor across the output. Set the scope bandwidth to 20MHz. Probe directly off of one of the capacitors, using a small ground clip to minimize measurement error. Resistor Load To Scope Solid Tantalum 10µF Ceramic 1.0µF +Vin -Vin -Vo -S Trim +S + +Vo FIGURE 11. OUTPUT NOISE MEASUREMENT CIRCUIT CASE +Vo -Vo +Vin C1 -Vin C2 L1 1. Conduction EN55022 class A Model No. C2 C3 L1 VHK100W-Q24-S28 47uF/50V KY 47uF/50V KY 3.4uH VHK100W-Q48-S28 47uF/100V KY 47uF/100V KY 3.4uH 2. Conduction EN55022 class B Model No. C1 C2 L1 VHK100W-Q24-S28 220uF/50V KY 220uF/50V KY 3.4uH VHK100W-Q48-S28 47uF/100V KY 47uF/100V KY 3.4uH FIGURE 10.3. EMI FILTER FOR VHK100W-XXX-S28 |
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