wiki:Power/cooling

2014-03-27

Closed box run with cycling

Close box run without cycling

Comparison

2014-03-11

ASDQ heatup: 1 2 3

ASDQ/TDC side view: 1 2 3

TDC: top bottom

2014-02-24

Put TDC/ASDQ pair in a small 2.6" x 1.6" x 3 " aluminum box.

Placed a thermistor on ASDQ 1 and monitored temperature until the board returned nonsense.

Closed_Box-plot.png

Closed box image

Image of inside of closed box

2014-02-24

Prototype Design:

Update spreadsheet

Measured values diagram Updated

2014-07-10

TDR Design:

Spreadsheet - 4V

Spreadsheet - 5V

Diagram

Old

  • +4V Side
Supply @ current (mA) Voltage (V) Power out (mW) Power Reg (mW) Power total part current max
TDC 2.5V U10 input 56 2.5 140 84 224 tps73701 1 Amp
TDC 3.3V U9 input 5.4 3.3 18 3.8 22 tps73701 1 Amp
TDC 1.2V U11 input 132 1.2 160 370 530 tps73701 1 Amp
TDC 2.5V U12 input 21 2.5 53 32 85 tps73701 1 Amp
ASDQ +3V R24 284 3 V 850 284 1134 TPS73701 1 Amp
Sum of individual - 498.4 - 1220 774 1995
Total +4 measurment input 500 4 2000
  • -4V Side
Supply @ current power part current max
ASDQ -3V R31 260mA http://www.linear.com/product/LT3015
Total -4 (meas) input 265mA

Notes:

  • Max output of TPS737xx is 1A
  • All other regulators on the ASDQ board run from the +/- 3V regulators, so we don't have individual numbers for them.

Temps:

Supply @ Temp (C)
ASDQ 57-60
ASDQ U9 45
ASDQ U10 47
ASDQ U6 50
ASDQ U8 50
Last modified 8 years ago Last modified on Sep 19, 2014, 6:53:57 AM

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