US2009224770A1PendingUtilityA1

Screening of electrolytic capacitors

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Assignee: FREEMAN YURIPriority: Dec 18, 2006Filed: Sep 10, 2008Published: Sep 10, 2009
Est. expiryDec 18, 2026(~0.4 yrs left)· nominal 20-yr term from priority
Inventors:Yuri Freeman
H01G 13/00H01G 9/00G01R 31/016
48
PatentIndex Score
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Claims

Abstract

A method for screening electrolytic capacitors places a capacitor in series with a resistor in series with a resistor, applying a test voltage and following the charge curve for the capacitor. A high voltage drop indicates high reliability and a low voltage drop is used to reject the piece. The leakage current is not adversely affected during the test.

Claims

exact text as granted — not AI-modified
1 - 6 . (canceled) 
     
     
         7 . An apparatus for screening capacitors to remove unreliable parts from a large population comprising power supply with a volt meter, tested capacitor with separate volt meter, series resistor, and a circuit breaker or fuse.

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