In accordance with an embodiment, a method of controlling a switched-mode power includes generating a feedback signal proportional to an output of the switched-mode power supply, and operating the switched-mode power supply in a normal mode. The printed circuit board has a dielectric forming the printed circuit board material; at least one ground inner layer connected to ground potential; and a supply voltage inner layer connected to the potential of the supply voltage. The mass of the insert is varied by altering the volume or the density of the insert through the set. Furthermore, the method includes requesting user authentication and if the user is successfully authenticated, receiving the session key from the server to enable reading of the content on the secure medium. Therefore, the roller of the band pull back means is subsequently rotated at the low speed, thereby pulling back the tip of the band to a predetermined position. If the dosage form has not been tampered with, the TPTA trap does not significantly interfere with the rate of release of the drug from the dosage form.