An isolated forward converter comprising: a first transformer providing an isolation barrier between an input circuit and an output circuit an input circuit connected to a primary coil of the first transformer and having at least one switch for regulating power supplied to the primary coil; an output circuit connected to a secondary coil of the first transformer that receives power supplied by the input circuit via the first transformer and is configured to supply received power to a load via an output inductor, said output circuit and said input circuit both comprising one or more diodes; and a controller that controls the at least one switch to regulate the power supplied to the primary coil characterized by a feedback winding coupled to the output inductor to form a second isolation transformer and tied to the same ground as the controller; and a monitor circuit that has the same ground reference as the controller and is configured to calculate, during an on-time of said at least one switch, a voltage supplied to the load by subtracting a voltage across the output inductor and a voltage across one of the one or more diodes of the output circuit from a voltage across the secondary coil, wherein the voltage across the secondary coil is calculated using a voltage across the primary coil of the first transformer and a turns ratio of the first transformer, and the voltage across the output inductor is calculated using a voltage across the feedback winding and a turns ratio of the second transformer; and a voltage across one of the one or more diodes of the output circuit is either a reference voltage such as 0.7 Volts or any other voltage representative of the diode drop which is referenced to the same ground potential as the controller; and said controller is configured to control the at least one switch based on the voltage calculated by the monitor circuit. a first transformer providing an isolation barrier between an input circuit and an output circuit an input circuit connected to a primary coil of the first transformer and having at least one switch for regulating power supplied to the primary coil; an output circuit connected to a secondary coil of the first transformer that receives power supplied by the input circuit via the first transformer and is configured to supply received power to a load via an output inductor, said output circuit and said input circuit both comprising one or more diodes; and a controller that controls the at least one switch to regulate the power supplied to the primary coil characterized by a feedback winding coupled to the output inductor to form a second isolation transformer and tied to the same ground as the controller; and a monitor circuit that has the same ground reference as the controller and is configured to calculate, during an on-time of said at least one switch, a voltage supplied to the load by subtracting a voltage across the output inductor and a voltage across one of the one or more diodes of the output circuit from a voltage across the secondary coil, wherein the voltage across the secondary coil is calculated using a voltage across the primary coil of the first transformer and a turns ratio of the first transformer, and the voltage across the output inductor is calculated using a voltage across the feedback winding and a turns ratio of the second transformer; and a voltage across one of the one or more diodes of the output circuit is either a reference voltage such as 0.7 Volts or any other voltage representative of the diode drop which is referenced to the same ground potential as the controller; and said controller is configured to control the at least one switch based on the voltage calculated by the monitor circuit.