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equipment:psus [2017/12/05 15:18]
tggzzz
equipment:psus [2019/10/25 12:35] (current)
tggzzz
Line 1: Line 1:
 +===== Power Supplies =====
 +
 +==== Safety ====
 +
 +Some of these power supplies can deliver **dangerous voltages and currents**.
 +
 +If unsure how to use them safely, ask.
 +
 +==== Bench Power Supplies ====
 Location: electronics test bench and shelves, but if members forget to put them back after using them, they might be anywhere. Location: electronics test bench and shelves, but if members forget to put them back after using them, they might be anywhere.
  
-| ^Farnell L30AT ^Black jobbies ​+| ^Farnell PDD3502A ^Isotech IPS1125 ^Farnell TOPS2 ^Farnell TSV70 mk2 ^ 
-^Specification |variable **0-50V**, variable current limit 0-500mA |variable 0-30V, variable current limit **0-2.5A** | +^Specification |variable 0-35V, variable current limit 0-2A |variable 0-20V 0-250mA, fixed 5V 1A |variable 4-6V 5A, variable 12-17V 1A |variable 0-35/70V, variable current limit 0-10/5A | 
-^::: |dual independent PSUs |fixed 12V & 5V, 500mA | +^::: |dual independent and **tracking** PSUs |triple independent PSUs |single plus dual tracking PSUs |single PSU | 
-^Condition |Old but usable |Excellent | +^Condition |**Modern**,​ high quality |**Modern** basic |Old basic, untested but good provenance |Old, untested | 
-^::: |volts controls scratchy <2V | | +^::: |Can connect PSUs in series and parallel |Caution w.r.t. the fixed current limit|Caution w.r.t. unknown current limits; might be via fuses! |**Caution: shorting 10A could cause molten metal to splatter**; recommend using with eye/face protection | 
-^::: |current limit controls scratchy | | +^::: | |Ideal for logic plus analogue |Ideal for logic plus analogue |Caution: requires the sense wires to be connected | 
-^::: |both satisfactory once settled | | +^::: | | | |Caution: weighs 26kg, so two man lift | 
-^::: | {{:​test_equipment:​farnellL30AT.jpg?​direct&​200 ​ }} |    |+^::: |{{:​test_equipment:​farnell-pdd3502a.jpg?​direct&​200 ​ }} |{{:​test_equipment:​isotech-ips1125.jpg?​direct&​200 ​ }} |{{:​test_equipment:​farnell-tops2.jpg?​direct&​200 ​ }} |{{:​test_equipment:​farnell-tsv70-2.jpg?​direct&​200 ​ }} | 
 + 
 +| ^Farnell L30AT ^Rapid PS3025 ^Farnell ET30/​2 ​
 +^Specification |variable **0-50V**, variable current limit 0-500mA |variable 0-30V, variable current limit **0-2.5A** ​|variable 0-15V/2A or 0-30V/1A, fixed current limit 
 +^::: |dual independent PSUs |fixed 12V & 5V, 500mA |dual independent PSUs 
 +^Condition |Old but usable |Excellent ​|Old but usable ​
 +^::: |volts controls scratchy <2V | |Caution w.r.t. the current limits fixed at ~10% above the rated current ​
 +^::: |current limit controls scratchy ​| | 
 +^::: |both satisfactory once settled ​| | 
 +^::: | {{:​test_equipment:​farnellL30AT.jpg?​direct&​200 ​ }} | {{:​test_equipment:​psurapid3025.jpg?​direct&​200 ​ }} |{{:​test_equipment:​farnell-et30-2.jpg?​direct&​200 ​ }} | 
 + 
 +==== Other ==== 
 + 
 +There are many //many// PSU bricks that can be hacked, located on the shelves near the glass door.
  • equipment/psus.1512487106
  • Last modified: 3 years ago
  • by tggzzz