An electronic converter comprising: - two input terminals (102a, 102b) for receiving an input voltage ( V in); - two output terminals (104a, 104b) for providing a DC voltage ( V out) or a DC current (i out); - a transformer comprising a primary winding and a secondary winding; - a switching stage configured to selectively transfer energy from said two input terminals (102a, 102b) to said primary winding of said transformer; - a rectification and filter circuit (114, 116) connected between said secondary winding of said transformer and said two output terminals (104a, 104b); - a measurement circuit configured to determine a first signal ( S REG) indicative of said DC voltage ( V out) or said DC current ( i out) provided via said output terminals (104a, 104b); - a regulation circuit configured to generate a regulation signal ( FB REG) as a function of said first signal (S REG) and one or more reference signals; - a driver circuit configured to drive said switching stage as a function of said regulation signal ( FB REG); - an optical, inductive or capacitive coupler; - a transmission circuit (124; 152, 154) configured to: a) receive said first signal ( S REG) and a second signal, b) generate a bit sequence indicative of said second signal, c) generate an encoded bit sequence by applying a Manchester coding to said bit sequence, d) generate a pulse width modulated signal ( i TX) applied to the input of said optical, inductive or capacitive coupler, wherein said pulse width modulated signal ( i TX) comprises for each bit of said encoded bit sequence: - a sequence of a first number of pulses with a first frequency when the respective bit has a first logic value, and - a sequence of a second number of pulses with a second frequency when the respective bit has a second logic value, e) vary the duty cycle of said pulse width modulated signal ( i TX) as a function of said first signal ( S REG), and - a receiver circuit (128; 156, 158) configured to monitor the received signal at the output of said optical, inductive or capacitive coupler, and determine a third signal ( S' REG) indicative of said first signal ( S REG) and a fourth signal ( SA') indicative of said second signal. - two input terminals (102a, 102b) for receiving an input voltage ( V in); - two output terminals (104a, 104b) for providing a DC voltage ( V out) or a DC current (i out); - a transformer comprising a primary winding and a secondary winding; - a switching stage configured to selectively transfer energy from said two input terminals (102a, 102b) to said primary winding of said transformer; - a rectification and filter circuit (114, 116) connected between said secondary winding of said transformer and said two output terminals (104a, 104b); - a measurement circuit configured to determine a first signal ( S REG) indicative of said DC voltage ( V out) or said DC current ( i out) provided via said output terminals (104a, 104b); - a regulation circuit configured to generate a regulation signal ( FB REG) as a function of said first signal (S REG) and one or more reference signals; - a driver circuit configured to drive said switching stage as a function of said regulation signal ( FB REG); - an optical, inductive or capacitive coupler; - a transmission circuit (124; 152, 154) configured to: a) receive said first signal ( S REG) and a second signal, b) generate a bit sequence indicative of said second signal, c) generate an encoded bit sequence by applying a Manchester coding to said bit sequence, d) generate a pulse width modulated signal ( i TX) applied to the input of said optical, inductive or capacitive coupler, wherein said pulse width modulated signal ( i TX) comprises for each bit of said encoded bit sequence: - a sequence of a first number of pulses with a first frequency when the respective bit has a first logic value, and - a sequence of a second number of pulses with a second frequency when the respective bit has a second logic value, e) vary the duty cycle of said pulse width modulated signal ( i TX) as a function of said first signal ( S REG), and a) receive said first signal ( S REG) and a second signal, b) generate a bit sequence indicative of said second signal, c) generate an encoded bit sequence by applying a Manchester coding to said bit sequence, d) generate a pulse width modulated signal ( i TX) applied to the input of said optical, inductive or capacitive coupler, wherein said pulse width modulated signal ( i TX) comprises for each bit of said encoded bit sequence: - a sequence of a first number of pulses with a first frequency when the respective bit has a first logic value, and - a sequence of a second number of pulses with a second frequency when the respective bit has a second logic value, - a sequence of a first number of pulses with a first frequency when the respective bit has a first logic value, and - a sequence of a second number of pulses with a second frequency when the respective bit has a second logic value, e) vary the duty cycle of said pulse width modulated signal ( i TX) as a function of said first signal ( S REG), and - a receiver circuit (128; 156, 158) configured to monitor the received signal at the output of said optical, inductive or capacitive coupler, and determine a third signal ( S' REG) indicative of said first signal ( S REG) and a fourth signal ( SA') indicative of said second signal.