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winny
winny
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How to calculate maximum amount of bulbs iI can connect in parallel to match design specification of 1.5 A?

ImI'm designing a sensor triggered circuit that involves 220V220 V passing on a PCB, so iI designed the board thickness to withstand a maximum of 1.5A5 A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4W4 W (says on package). ImI'm confused on calculating the maximum bulbs iI can attach to the load, imI'm guessing its one of those scenarios:

Max Loadload = 1.5A / Currentcurrent per Bulbbulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from Voltagevoltage regulator (5V5 V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.

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How to calculate maximum amount of bulbs i can connect in parallel to match design specification of 1.5 A?

Im designing a sensor triggered circuit that involves 220V passing on a PCB, so i designed the board thickness to withstand a maximum of 1.5A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4W (says on package). Im confused on calculating the maximum bulbs i can attach to the load, im guessing its one of those scenarios:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from Voltage regulator (5V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.

added Image

How to calculate maximum amount of bulbs I can connect in parallel to match design specification of 1.5 A?

I'm designing a sensor triggered circuit that involves 220 V passing on a PCB, so I designed the board thickness to withstand a maximum of 1.5 A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4 W (says on package). I'm confused on calculating the maximum bulbs I can attach to the load, I'm guessing its one of those scenarios:

Max load = 1.5A / current per bulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from voltage regulator (5 V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.

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CcoderBeginner
CcoderBeginner
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Im designing a sensor triggered circuit that involves 220V passing on a PCB, so i designed the board thickness to withstand a maximum of 1.5A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4W (says on package). Im confused on calculating the maximum bulbs i can attach to the load, im guessing its one of those scenarios:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from Voltage regulator (5V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.

added Image

Im designing a sensor triggered circuit that involves 220V passing on a PCB, so i designed the board thickness to withstand a maximum of 1.5A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4W (says on package). Im confused on calculating the maximum bulbs i can attach to the load, im guessing its one of those scenarios:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from Voltage regulator (5V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.

Im designing a sensor triggered circuit that involves 220V passing on a PCB, so i designed the board thickness to withstand a maximum of 1.5A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4W (says on package). Im confused on calculating the maximum bulbs i can attach to the load, im guessing its one of those scenarios:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from Voltage regulator (5V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.

added Image

Source Link
CcoderBeginner
CcoderBeginner
  • 5
  • 1
  • 6

How to calculate maximum amount of bulbs i can connect in parallel to match design specification of 1.5 A?

Im designing a sensor triggered circuit that involves 220V passing on a PCB, so i designed the board thickness to withstand a maximum of 1.5A. The main load on the circuit would be a series of LED bulbs, each bulb draws 4W (says on package). Im confused on calculating the maximum bulbs i can attach to the load, im guessing its one of those scenarios:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/220) = 82 bulbs

Or does the manufacturer calculate power drawn from Voltage regulator (5V) and thus:

Max Load = 1.5A / Current per Bulb = 1.5 / (4/5) = 1.8 bulb = 1 bulb.