hi,
i'm sorry if this question has already been answered. if it was, i wasn't able to find it.
i found a Stancor P-8621 power transformer which i would like to use to make a regulated power supply. The transformer's secondary has taps for 24V,26V,28V, and 30V. the transformer is rated at 15A RMS on the secondary.
i want to use it in a 30V/10A regulated power supply with a full wave bridge rectifier, a filter capacitor, and two LM338K regulators. i know that Idc = 0.62 X Iac which comes out to 9.3A DC.
So i think i need a little more current to make this device safe at 10A. i know dont need to use the 30V tap on the secondary because Vdc = 1.41 x Vac.
So here is my actual question: if i use one of the lower voltage taps on the transformer's secondary (such as the 24V tap), would i increase the transformer's current rating? And if so, by roughly how much? Can i just divide the VA (450) by the secondary voltage i am going to use in order to find the current rating?
i'm sorry if this question has already been answered. if it was, i wasn't able to find it.
i found a Stancor P-8621 power transformer which i would like to use to make a regulated power supply. The transformer's secondary has taps for 24V,26V,28V, and 30V. the transformer is rated at 15A RMS on the secondary.
i want to use it in a 30V/10A regulated power supply with a full wave bridge rectifier, a filter capacitor, and two LM338K regulators. i know that Idc = 0.62 X Iac which comes out to 9.3A DC.
So i think i need a little more current to make this device safe at 10A. i know dont need to use the 30V tap on the secondary because Vdc = 1.41 x Vac.
So here is my actual question: if i use one of the lower voltage taps on the transformer's secondary (such as the 24V tap), would i increase the transformer's current rating? And if so, by roughly how much? Can i just divide the VA (450) by the secondary voltage i am going to use in order to find the current rating?