hello listees, For those designing switching power supplies, how are you dealing with IEC 1010 spacing requirements relating to the high voltage PWM controller? TYpically you wil have several hundred volts going into this IC requiring a couple mm's of spacing. On this same chip you will have low voltage and ground connections. the pin spacing on the IC prevents the spacing requirements from the tables for the pads and runs. Am i missing something fundamental here like its all considered the same circuit? even though you may have 400 volts near 10 volts? the ic's would need to be much larger.
does iec 1010 allow fault testing to allow for evaluating spacing that don't meet the spacings tables? Perhaps D5 applies but is the primary of the switching power supply the portion of the circuit after the rectifier? For example, I power my device by 120/240 Vac. It gets rectified and bumped upto 400. Can i use D5 since the 400 volts is less than the impulse voltage in table d14? Thanks for any insights, I am kinda' new to switching power supplies. eric --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
