two LEDs on the shunt regulator module blinking, normal? Options  Watch this topic  Print this topic  Atom Feed  RSS Feed View » Normal Threaded

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D Yee		#1 Posted : Wednesday, June 29, 2011 9:32:49 PM(UTC)
Rank: Member Groups: Member Joined: 1/2/2011(UTC) Posts: 5 Location: Sacramento, Ca		My B-II is singing so good right at the moment. However, I noticed the two green LEDs on the shunt regulator module mounted directly above the ES9018 keep slightly blinking. Is this normal? Many thanks for your input
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LeonvB		#2 Posted : Thursday, June 30, 2011 10:07:07 AM(UTC)
Rank: Member Groups: Member Joined: 5/23/2010(UTC) Posts: 708 Location: Netherlands Thanks: 2 times Was thanked: 48 time(s) in 45 post(s)		I've never seen that with my modules. Is the voltage to the DAC board itself stable?
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toast		#3 Posted : Thursday, June 30, 2011 10:22:05 AM(UTC)
Rank: Advanced Member Groups: Member Joined: 3/31/2011(UTC) Posts: 45 Location: Malaysia		Can you measure the voltage supply to it? What you use to supply to BII?
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D Yee		#4 Posted : Thursday, June 30, 2011 12:16:38 PM(UTC)
Rank: Member Groups: Member Joined: 1/2/2011(UTC) Posts: 5 Location: Sacramento, Ca		I use one Placid to power the BII. I am feeding the Placid with 10v/2A going in and 5.47v coming out. I calibrated the Placid carefully according to the manual. reading taking at the regulator module regulator-1 in = 5.47v regulator-1 out = 3.50v regulator-2 out = 5.47v regulator-2 out =3.51v It appears the voltage is stable.
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Russ White		#5 Posted : Thursday, June 30, 2011 5:00:08 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		I would dial down the placid a bit. Maybe 5.25V. How much current is the placid shunting?
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D Yee		#6 Posted : Thursday, June 30, 2011 7:50:34 PM(UTC)
Rank: Member Groups: Member Joined: 1/2/2011(UTC) Posts: 5 Location: Sacramento, Ca		I set it to shunt around 50ma as the voltage drop on R3 is about 0.05v. If I dial down to 5.25v, should I calibrate and keep the shunt current to around 50ma? Thanks
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D Yee		#7 Posted : Friday, July 1, 2011 2:34:42 PM(UTC)
Rank: Member Groups: Member Joined: 1/2/2011(UTC) Posts: 5 Location: Sacramento, Ca		Dialed down to 5.25v, no changes.
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ihear21khz		#8 Posted : Sunday, July 3, 2011 7:13:06 PM(UTC)
Rank: Member Groups: Member Joined: 7/27/2010(UTC) Posts: 48 Location: Malaysia Was thanked: 1 time(s) in 1 post(s)		Check the both the soldered and mechanical connections between the regulator and the BII board.
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D Yee		#9 Posted : Tuesday, July 5, 2011 11:59:53 AM(UTC)
Rank: Member Groups: Member Joined: 1/2/2011(UTC) Posts: 5 Location: Sacramento, Ca		I checked all connections before I post, no luck.
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