User contributions for Philip

Search for contributionsExpandCollapse
⧼contribs-top⧽
⧼contribs-date⧽

(newest | oldest) View ( | ) (20 | 50 | 100 | 250 | 500)

10 February 2024

  • 17:1717:17, 10 February 2024 diff hist −1 Glossary:PLCNo edit summary
  • 17:1617:16, 10 February 2024 diff hist +127 Glossary→‎Glossary of Terms
  • 17:1217:12, 10 February 2024 diff hist +300 N Glossary:Ladder logicCreated page with "Ladder logic is a kind of simple graphical programming language with its roots in relay logic, formerly much used for the control of industrial plant and machinery, but still used by PLCs in similar applications. More details are given in the Ladder logic."
  • 16:5916:59, 10 February 2024 diff hist +527 N Glossary:PLCCreated page with "A PLC or Programmable Logic Controller is a device much used in industry for controlling plant and machinery. It has a number of inputs which would be connected to sensors of different kinds, and outputs through which it can control switches, valves, motors, pumps etc in order for the machine or industrial process to operate correctly and safely. Their pre-electonic origins lie in relay logic and they are still normally programmed by similar Wikipedi..."
  • 16:3816:38, 10 February 2024 diff hist +162 Glossary:PLLNo edit summary current
  • 16:3216:32, 10 February 2024 diff hist +443 N Glossary:PhaseCreated page with "Two sounds (or electrical signals, or radio or light waves) may be identical, but if the waves of one lag in time behind those of the other, they're said to differ in phase. A phase difference is measured in degrees; 360 degrees represents a complete cycle so is the same as no phase difference, whereas with a phase difference of 180 degrees, the peak of one wave will coincide with the trough of the other and combined, they will cancel out." current

9 February 2024

31 January 2024

30 January 2024

23 January 2024

22 January 2024

20 January 2024

  • 16:1616:16, 20 January 2024 diff hist +510 GlossaryNo edit summary
  • 15:5515:55, 20 January 2024 diff hist +341 N Glossary:ZIF ConnectorCreated page with "A ZIF or Zero Insertion Force connector is one in which a clamp of some sort is closed to make a good contact after the mating parts have been engaged, instead of the force being applied during insertion. They are commonly used for delicate ribbon cables, and for test rigs where many insertions of devices under test will routinely be made." current
  • 15:4415:44, 20 January 2024 diff hist +253 N Glossary:Thermal RunawayCreated page with "Some electronic components and circuits take more current as as they get hotter. Unchecked, this can lead to a positive feedback effect in which excessive heat causes still more heat to be generated, ending in a catastrophic failure and possibly a fire."
  • 15:3415:34, 20 January 2024 diff hist +315 N Glossary:SMDCreated page with "A Surface Mount Device or SMD is an electronic component designed to be mounted on the surface of a printed circuit board, instead of having leads which pass through holes in the board, soldered on the reverse side. Surface mount devices are generlly smaller, often much smaller than their through-hole equivalents."
  • 15:2815:28, 20 January 2024 diff hist +322 N Glossary:Ribbon cableCreated page with "Ribbon cables are cables with the conductors laid side by side to form a ribbon, rather than bound together in a bunch. The conductors may be individual insulated wires or may be copper tracks like those on a printed circuit board, laid on a fexible substrate. They are nomally used in conjunction with special connectors."
  • 12:3412:34, 20 January 2024 diff hist +415 N Glossary:NFCCreated page with "NFC or Near Field Communication is a set of technologies allowing electromagnetic communication between two devices, usually no more than a few centimeters apart. Each device contains a coil of wire and together they form a transformer through which data can be passed. A small amount of power is also often passed to an NFC device such as a security tag, having no power source of its own." current
  • 12:2212:22, 20 January 2024 diff hist +274 N Glossary:LIDARCreated page with "LIDAR or Light Imaging, Detection and Ranging is a technology similar to radar but using visible or infrared light instead of radio. As with radar, the distance of an object is determined by measuring the time taken for a pulse of light to be reflected off it and to return." current
  • 12:1412:14, 20 January 2024 diff hist +150 N Glossary:LDOCreated page with "A LDO or Low Drop-out regulator is a voltage regulator which produces the required output voltage even when the input voltage is only a little higher." current
  • 12:1012:10, 20 January 2024 diff hist +117 N Glossary:HapticsCreated page with "Haptics are technologies involving the sense of touch, such as the vibrate alert option offered by most smart phones." current

19 January 2024

  • 12:0312:03, 19 January 2024 diff hist +218 GlossaryNo edit summary
  • 11:5811:58, 19 January 2024 diff hist +684 N Glossary:Class A/B/C/DCreated page with "Class A, B, C and D refer to different design architectures for an amplifier, having different power efficiencies. Class A drives the output throughout a cycle, and is the least efficient. Class B drives the output for only a half cycle. Usually, a second Class B driver drives alternate half cycles. Class C drives the output for less than half a cycle and generally drives a tuned circuit to restore the output (typically in a transmitter) to a p..."
  • 11:4911:49, 19 January 2024 diff hist +314 N Glossary:PWMCreated page with "PWM or Pulse Width Modulation is a highly efficient method of power control in which the power is switched on and off very rapidly. The ouput is then smoothed with a capacitor and/or inductor and the relative on and off times then determine the power that is delivered."

14 January 2024

(newest | oldest) View ( | ) (20 | 50 | 100 | 250 | 500)