I have a quick question that hopefully can be answered easily.
I am working on a residential Liftmaster gate opener that appears to have a bad 120vac to 24vdc power supply. The power supply is a linear type with a toroidal transformer that appears to be bad (secondaries measure dead short and no vac output). The power supply is separate from the main control board and the last component appears to be a bridge rectifier right before external leads feed the resulting 24v into the control board.
The control board has two large electrolytic capacitors, right next to the power connector, so it appears filtering is done there.
My question is, finding a replacement toroidal transformer not only appears difficult, but fairly costly. Would it be acceptable, especially considering that the filtering seems to be being done on-board, to replace the entire linear module, up to and including the rectifier with a switching 24v DC power supply of similar amperage rating?
I am working on a residential Liftmaster gate opener that appears to have a bad 120vac to 24vdc power supply. The power supply is a linear type with a toroidal transformer that appears to be bad (secondaries measure dead short and no vac output). The power supply is separate from the main control board and the last component appears to be a bridge rectifier right before external leads feed the resulting 24v into the control board.
The control board has two large electrolytic capacitors, right next to the power connector, so it appears filtering is done there.
My question is, finding a replacement toroidal transformer not only appears difficult, but fairly costly. Would it be acceptable, especially considering that the filtering seems to be being done on-board, to replace the entire linear module, up to and including the rectifier with a switching 24v DC power supply of similar amperage rating?