A single-stage power factor corrected light emitting diode LED driver circuit having a circuit input node, a circuit output node, and a circuit common node, the driver circuit comprising: a first inductor; a second inductor; a coupling capacitor; a controllable switch configured to selectively operate in an ON state, in which current flows through the controllable switch, and an OFF state, in which current does not flow through the controllable switch; an LED string; and a controller coupled to the controllable switch, wherein: the first inductor is electrically connected in series between the circuit input node and the coupling capacitor, the second inductor is electrically connected in series between the circuit output node and the circuit common node, the coupling capacitor is electrically connected in series between the first inductor and the circuit output node, the controllable switch is electrically connected in series between a first internal circuit node and the circuit common node, the first internal circuit node located between the first inductor and the coupling capacitor, characterized in that: the controller is adapted to receive a reference voltage signal representative of a voltage at the circuit input node and an LED string current feedback signal representative of current flow through the LED string, the controller being configured, in response to the LED string current feedback signal and the reference voltage signal, to command the controllable switch to selectively operate in the ON state and the OFF state, wherein the LED string is electrically connected in parallel with only the second inductor. a first inductor; a second inductor; a coupling capacitor; a controllable switch configured to selectively operate in an ON state, in which current flows through the controllable switch, and an OFF state, in which current does not flow through the controllable switch; an LED string; and a controller coupled to the controllable switch, wherein: the first inductor is electrically connected in series between the circuit input node and the coupling capacitor, the second inductor is electrically connected in series between the circuit output node and the circuit common node, the coupling capacitor is electrically connected in series between the first inductor and the circuit output node, the controllable switch is electrically connected in series between a first internal circuit node and the circuit common node, the first internal circuit node located between the first inductor and the coupling capacitor, characterized in that: the controller is adapted to receive a reference voltage signal representative of a voltage at the circuit input node and an LED string current feedback signal representative of current flow through the LED string, the controller being configured, in response to the LED string current feedback signal and the reference voltage signal, to command the controllable switch to selectively operate in the ON state and the OFF state, wherein the LED string is electrically connected in parallel with only the second inductor. the first inductor is electrically connected in series between the circuit input node and the coupling capacitor, the second inductor is electrically connected in series between the circuit output node and the circuit common node, the coupling capacitor is electrically connected in series between the first inductor and the circuit output node, the controllable switch is electrically connected in series between a first internal circuit node and the circuit common node, the first internal circuit node located between the first inductor and the coupling capacitor, characterized in that: the controller is adapted to receive a reference voltage signal representative of a voltage at the circuit input node and an LED string current feedback signal representative of current flow through the LED string, the controller being configured, in response to the LED string current feedback signal and the reference voltage signal, to command the controllable switch to selectively operate in the ON state and the OFF state, wherein the LED string is electrically connected in parallel with only the second inductor. the controller is adapted to receive a reference voltage signal representative of a voltage at the circuit input node and an LED string current feedback signal representative of current flow through the LED string, the controller being configured, in response to the LED string current feedback signal and the reference voltage signal, to command the controllable switch to selectively operate in the ON state and the OFF state, wherein the LED string is electrically connected in parallel with only the second inductor.