Search found 4 matches

by Theo_NL
Tue Oct 09, 2018 7:52 am
Forum: Sensors
Topic: Wind sensor Rev. P schematic questions and 15V opertion
Replies: 8
Views: 2276

Re: Wind sensor Rev. P schematic questions and 15V opertion

Current model is TLV2434AIPWR , absolute max is 12 volts and recommended is 10V, probably the reason we chose 9V as working voltage. We didn't anticipate people using these with hurricane strength wind speeds, but they seem to work. This is a remarkable Opamp. According its specifications its recom...
by Theo_NL
Thu Sep 27, 2018 2:48 am
Forum: Sensors
Topic: Wind sensor Rev. P schematic questions and 15V opertion
Replies: 8
Views: 2276

Re: Wind sensor Rev. P schematic questions and 15V opertion

The op-amp is a rail to rail type but doesn't really get near the rails anyway. Paul At 55 Mph and 25 °C the output of Opamp C is 9.9 Vdc. The board can be powered with 10 Vdc according specification, meaning in this situation a rail to rail opamp is required though. At 90 Mph and 25°C the Opamp-C ...
by Theo_NL
Thu Sep 27, 2018 1:06 am
Forum: Sensors
Topic: Wind sensor Rev. P schematic questions and 15V opertion
Replies: 8
Views: 2276

Re: Wind sensor Rev. P schematic questions and 15V opertion

Thanks Paul for the confirmation. I will use two of these sensors in a heat recover air ventilattion system, whereby it is important that two different air flows have exact the same capacity. Meaning if I can lower the tolerance of each board I will do so :) One other thing that might be interesting...
by Theo_NL
Wed Sep 26, 2018 1:11 pm
Forum: Sensors
Topic: Wind sensor Rev. P schematic questions and 15V opertion
Replies: 8
Views: 2276

Wind sensor Rev. P schematic questions and 15V opertion

On the information page of this sensor is written that the maximum permitted supply voltage is 12 Vdc, and that exceeding this voltage can damage the sensor. However, according the schematic this sensor is powered from the internal 9 Vdc linear voltage regulator (Microchip LP2951D). This chip can ha...