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edited Dec 13, 2014 at 15:37

I see that some power supplies provide a wide range of output voltages meanwhile maintaining the current.

For example: 2.7 A, 20-36 V output.

I understand that the voltage rate will depend on the end-unit consuming the power (eg., an LED chip).

What happens if the output from the PSU is divided into two parallel connections, one lead connected to an end-unit needing to use 27v, and another using 30v?

What happens internally? What's the reason why for the end result?

Example:

[[80W 2.7 A PSU with 18-30 V]] |--> (21-24) V, 1 A Diode 
                               |--> (27-31) V, 2 A Diode

How would it regulate the voltage in each case?

I see that some power supplies provide a wide range of output voltages meanwhile maintaining the current.

For example: 2.7 A, 20-36 V output.

I understand that the voltage rate will depend on the end-unit consuming the power (eg., an LED chip).

What happens if the output from the PSU is divided into two parallel connections, one lead connected to an end-unit needing to use 27v, and another using 30v?

Example:

[[80W 2.7 A PSU with 18-30 V]] |--> (21-24) V, 1 A Diode 
                               |--> (27-31) V, 2 A Diode

How would it regulate the voltage in each case?

I see that some power supplies provide a wide range of output voltages meanwhile maintaining the current.

For example: 2.7 A, 20-36 V output.

I understand that the voltage rate will depend on the end-unit consuming the power (eg., an LED chip).

What happens if the output from the PSU is divided into two parallel connections, one lead connected to an end-unit needing to use 27v, and another using 30v?

What happens internally? What's the reason why for the end result?

Example:

[[80W 2.7 A PSU with 18-30 V]] |--> (21-24) V, 1 A Diode 
                               |--> (27-31) V, 2 A Diode

How would it regulate the voltage in each case?

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asked Dec 13, 2014 at 13:26

Phil

How does a constant current (CC) power supply regulate voltage (V) in parallel circuits?

I see that some power supplies provide a wide range of output voltages meanwhile maintaining the current.

For example: 2.7 A, 20-36 V output.

I understand that the voltage rate will depend on the end-unit consuming the power (eg., an LED chip).

What happens if the output from the PSU is divided into two parallel connections, one lead connected to an end-unit needing to use 27v, and another using 30v?

Example:

[[80W 2.7 A PSU with 18-30 V]] |--> (21-24) V, 1 A Diode 
                               |--> (27-31) V, 2 A Diode

How would it regulate the voltage in each case?