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winny
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Suppose I have a voltage regulator acting as a high-power current source  (basically a constant-current driver), with a resistor to set the output current. This drives 27 high-brightness white LEDs, arranged as 9 series chains, with 3 LEDs per series chain  (9.6V6 V min at 20mA20 mA).

Do I need to put resistors on every series chain, or is this not necessary for enforcing current sharing?

schematic

simulate this circuit – Schematic created using CircuitLab

Suppose I have a voltage regulator acting as a high-power current source(basically a constant-current driver), with a resistor to set the output current. This drives 27 high-brightness white LEDs, arranged as 9 series chains, with 3 LEDs per series chain(9.6V min at 20mA).

Do I need to put resistors on every series chain, or is this not necessary for enforcing current sharing?

schematic

simulate this circuit – Schematic created using CircuitLab

Suppose I have a voltage regulator acting as a high-power current source  (basically a constant-current driver), with a resistor to set the output current. This drives 27 high-brightness white LEDs, arranged as 9 series chains, with 3 LEDs per series chain  (9.6 V min at 20 mA).

Do I need to put resistors on every series chain, or is this not necessary for enforcing current sharing?

schematic

simulate this circuit – Schematic created using CircuitLab

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lemon
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Series/parallel LED current limiting resistors

Suppose I have a voltage regulator acting as a high-power current source(basically a constant-current driver), with a resistor to set the output current. This drives 27 high-brightness white LEDs, arranged as 9 series chains, with 3 LEDs per series chain(9.6V min at 20mA).

Do I need to put resistors on every series chain, or is this not necessary for enforcing current sharing?

schematic

simulate this circuit – Schematic created using CircuitLab