Strobe device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 9, 1999
Grant Date -
N/A
app pub date -
Jul 29, 1997
filing date -
Jul 29, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A strobe device according to the present invention includes: a main capacitor; and step-up means including at least one step-up capacitor, the at least one step-up capacitor being rapidly charged via a flash discharge tube in an ionization state, a charged voltage of the at least one step-up capacitor being superimposed on a charged voltage of the main capacitor and applied across the flash discharge tube at least via an insulated gate bipolar transistor and a restriction resistor coupled in series with the flash discharge tube. The resistance value of the restriction resistor is prescribed to satisfy both of the following two conditions: (1) during an OFF state of the insulated gate bipolar transistor, an electric current flowing via the flash discharge tube is controlled at a level where the flash discharge tube cannot continue to discharge; and (2) during an ON state of the insulated gate bipolar transistor, a voltage across the flash discharge tube is stepped up to a voltage which is higher than the charged voltage of the main capacitor when the charged voltage of the step-up capacitor is applied across the flash discharge tube.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully