A turbocharger arrangement for a variable geometry turbocharger including pivotable vanes with each vane having a respective vane bore for receiving a vane post into a vane first planar surface and a respective actuation post projecting outwardly from the first planar surface. The power supply includes a pulse-skipping dc-dc boost converter. The invention also relates to methods for producing a soybean plant containing in its genetic material one or more transgenes and to the transgenic soybean plants and plant parts produced by those methods.