A power tool comprising: a housing; a motor disposed within the housing; a power supply interface arranged to receive electric power from a power supply, the power supply interface having a first node (B+) and a second node (B-); a power switch circuit including a switching arrangement disposed on a current path from the power supply interface and configured to supply electric power to the motor; an input unit actuatable by a user and configured to turn the supply of electric power from the power supply interface to the motor ON or OFF; a controller configured to control the power switch circuit to regulate the supply of electric power to the motor; a driver circuit disposed between the controller and the power switch circuit configured to receive a plurality of control signals from the controller and drive the switching arrangement; and a no-volt prevention circuit; wherein the no-volt prevention circuit is configured to enable a supply of power to at least one of the driver circuit or the controller when the input unit is actuated after the power supply interface is coupled to the power supply, but not when the input unit is actuated before to the power supply interface is coupled to the power supply; wherein there is further provided a power supply regulator (234, Q1)) having an input node, an output node, and an enable node arranged to enable or disable supply of power from the input node to the output node, wherein the no-volt prevention circuit is coupled to the enable node of the power supply regulator (234, Q1); wherein the power supply regulator is arranged to supply power from the power supply interface to at least one of the controller or the driver circuit at a compatible voltage level; wherein the no-volt prevention circuit is configured to receive a first voltage signal from the first node (B+) of the power supply interface and a second voltage signal from the input unit; characterised in that the no-volt prevention circuit comprises a first resistor-capacitor circuit (R1, C1) associated with the first voltage signal and the input node of the power supply regulator, the first resistor- capacitor circuit (R1, C1) comprising a series resistor- capacitor circuit (R1, C1) located between the first node (B+) and the main power supply regulator (234, Q1), the resistor being located between the first node (B+) and the input node of the power supply regulator (234, Q1) with the capacitor being located between input node of the power supply regulator (234, Q1) and the second node (B-)" and a second resistor-capacitor circuit (R3, C2) disposed in series with the second voltage signal and the enable node of the power supply regulator (234, Q1), wherein the first resistor-capacitor circuit (R1, C1) has a greater time constant than the second resistor-capacitor circuit (R3, C2). a housing; a motor disposed within the housing; a power supply interface arranged to receive electric power from a power supply, the power supply interface having a first node (B+) and a second node (B-); a power switch circuit including a switching arrangement disposed on a current path from the power supply interface and configured to supply electric power to the motor; an input unit actuatable by a user and configured to turn the supply of electric power from the power supply interface to the motor ON or OFF; a controller configured to control the power switch circuit to regulate the supply of electric power to the motor; a driver circuit disposed between the controller and the power switch circuit configured to receive a plurality of control signals from the controller and drive the switching arrangement; and a no-volt prevention circuit; wherein the no-volt prevention circuit is configured to enable a supply of power to at least one of the driver circuit or the controller when the input unit is actuated after the power supply interface is coupled to the power supply, but not when the input unit is actuated before to the power supply interface is coupled to the power supply; wherein there is further provided a power supply regulator (234, Q1)) having an input node, an output node, and an enable node arranged to enable or disable supply of power from the input node to the output node, wherein the no-volt prevention circuit is coupled to the enable node of the power supply regulator (234, Q1); wherein the power supply regulator is arranged to supply power from the power supply interface to at least one of the controller or the driver circuit at a compatible voltage level; wherein the no-volt prevention circuit is configured to receive a first voltage signal from the first node (B+) of the power supply interface and a second voltage signal from the input unit; characterised in that the no-volt prevention circuit comprises a first resistor-capacitor circuit (R1, C1) associated with the first voltage signal and the input node of the power supply regulator, the first resistor- capacitor circuit (R1, C1) comprising a series resistor- capacitor circuit (R1, C1) located between the first node (B+) and the main power supply regulator (234, Q1), the resistor being located between the first node (B+) and the input node of the power supply regulator (234, Q1) with the capacitor being located between input node of the power supply regulator (234, Q1) and the second node (B-)" and a second resistor-capacitor circuit (R3, C2) disposed in series with the second voltage signal and the enable node of the power supply regulator (234, Q1), wherein the first resistor-capacitor circuit (R1, C1) has a greater time constant than the second resistor-capacitor circuit (R3, C2).