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Teardown of Siemens frequency converter by dcstraney
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dcstraney
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Wiring
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dcstraney
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Crystal on top board
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dcstraney
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Stacking connector and 15V regulator
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dcstraney
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Colorful MELF resistors
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dcstraney
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Colorful MELF resistors
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dcstraney
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Dense winding traces on bottom of top board
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dcstraney
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Top board
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dcstraney
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Bulk capacitors
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dcstraney
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Power board side view
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dcstraney
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Relay on power board
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dcstraney
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Power board
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dcstraney
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Lonely MELF diode
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dcstraney
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Gate drivers
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dcstraney
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Controls
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dcstraney
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Controls
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dcstraney
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Bottom side of power board
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dcstraney
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Power input connector and filtering
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dcstraney
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Aux. supply
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dcstraney
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Aux. supply
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Aux. supply
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Heatsink
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dcstraney
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3-phase power module
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3-phase power module
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Side view
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Outside view
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Specification sticker