comparison: content/hp3562a.rst
content/hp3562a.rst
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| 27 ========== | 27 ========== |
| 28 | 28 |
| 29 Here is the beast: | 29 Here is the beast: |
| 30 | 30 |
| 31 .. image:: {static}/images/hp3562a/front.jpg | 31 .. image:: {static}/images/hp3562a/front.jpg |
| 32 :alt: Front view of the HP3562A DSA | |
| 32 | 33 |
| 33 I said the beast, because despite being an amazing piece of test | 34 I said the beast, because despite being an amazing piece of test |
| 34 equipment, it's also very big (576mm x 426mm x 222mm), very heavy | 35 equipment, it's also very big (576mm x 426mm x 222mm), very heavy |
| 35 (26kg) and... unfortunately quite loud. | 36 (26kg) and... unfortunately quite loud. |
| 36 | 37 |
| 45 Since it was on my "bench", I decided to see a bit inside, using the | 46 Since it was on my "bench", I decided to see a bit inside, using the |
| 46 occasion to investigate and fix the only real problem I have (as far | 47 occasion to investigate and fix the only real problem I have (as far |
| 47 as I know) with my device: the dimm display. | 48 as I know) with my device: the dimm display. |
| 48 | 49 |
| 49 .. image:: {static}/images/hp3562a/front_open.jpg | 50 .. image:: {static}/images/hp3562a/front_open.jpg |
| 51 :alt: Inside the HP3562A DSA | |
| 50 | 52 |
| 51 The unit consist in mostly 4 parts: | 53 The unit consist in mostly 4 parts: |
| 52 | 54 |
| 53 - a big switching power supply (with huge capacitors) on the left side | 55 - a big switching power supply (with huge capacitors) on the left side |
| 54 of the enclosure, under the display, | 56 of the enclosure, under the display, |
| 93 .. image:: {static}/images/hp3562a/hp3562a_a18_psu_block_diagram.png | 95 .. image:: {static}/images/hp3562a/hp3562a_a18_psu_block_diagram.png |
| 94 :alt: Block diagram of the switching power supply unit | 96 :alt: Block diagram of the switching power supply unit |
| 95 | 97 |
| 96 | 98 |
| 97 .. image:: {static}/images/hp3562a/a18_psu.jpg | 99 .. image:: {static}/images/hp3562a/a18_psu.jpg |
| 100 :alt: Picture of the HP3562A A18 PSU PCB board | |
| 98 | 101 |
| 99 The primary capacitors are huge Sprague caps (1400µF 250V): | 102 The primary capacitors are huge Sprague caps (1400µF 250V): |
| 100 | 103 |
| 101 .. image:: {static}/images/hp3562a/caps.jpg | 104 .. image:: {static}/images/hp3562a/caps.jpg |
| 105 :alt: Picture of the HP3562A main filter capacitors | |
| 102 | 106 |
| 103 The power line filter is also pretty impressive: | 107 The power line filter is also pretty impressive: |
| 104 | 108 |
| 105 .. image:: {static}/images/hp3562a/filter.jpg | 109 .. image:: {static}/images/hp3562a/filter.jpg |
| 110 :alt: Picture of the HP3562A line filter module | |
| 106 | 111 |
| 107 The PSU generates: | 112 The PSU generates: |
| 108 | 113 |
| 109 - 5V @30A (!) | 114 - 5V @30A (!) |
| 110 | 115 |
