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