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| Mains Step Down Transformers and 50/60 Hertz Frequency . https://forum.lddb.com/viewtopic.php?f=55&t=8360 |
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| Author: | framal [ 10 Apr 2019, 02:26 ] |
| Post subject: | Mains Step Down Transformers and 50/60 Hertz Frequency . |
I notice that a number of contributors to this forum have raised the question of running 100/110 & 120 volt laserdisc players from 240 volt/50 hertz source using step-down transformers.Whether the source voltage is 50 or 60 hertz does not matter as the player switch mode power supply rectifies the mains voltage to DC.The resulting high voltage DC is then switched at high frequency and regulated using pulse width modulation. I would also recommend that any step-down transformer be a toroidal type.They are more efficient, more compact and their external magnetic field is limited. |
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| Author: | substance [ 15 Oct 2019, 20:54 ] |
| Post subject: | Re: Mains Step Down Transformers and 50/60 Hertz Frequency . |
I concur. |
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