Hi
for a circuit I need 1x 24VDC and 1x 3.3VDC and 1x 5.5VDC. As input voltage I have 24VAC from a transformer. The 24VDC powers solenoid valves, sensors and contactors with in total approx. 1A. The 3.3VDC and 5.5VDC are for low power electronics like a microcontroller.
How would you realize the power supply? Two step-down converters for 24VDC and the low voltages, which are then stabilized with LDO's? Is there an alternative with less components? Maybe a transformer with multiple outputs? I do not need galvanic isolation.
for a circuit I need 1x 24VDC and 1x 3.3VDC and 1x 5.5VDC. As input voltage I have 24VAC from a transformer. The 24VDC powers solenoid valves, sensors and contactors with in total approx. 1A. The 3.3VDC and 5.5VDC are for low power electronics like a microcontroller.
How would you realize the power supply? Two step-down converters for 24VDC and the low voltages, which are then stabilized with LDO's? Is there an alternative with less components? Maybe a transformer with multiple outputs? I do not need galvanic isolation.