Current protection system

A method for protecting a load from an overcurrent, the method comprising the steps of:

• closing a first switch (M1), the first switch (M1) being part of a shunt sub-system comprising the first switch (M1) and a shunt resistor, the first switch (M1) arranged in series with the shunt resistor, the shunt sub-system being arranged in series with the load;
• sensing a shunt voltage (Ush) across the shunt resistor;
• comparing, by means of a comparator sub-system, the shunt voltage (Ush) with a reference voltage (Uref), the comparator sub-system comprising an offset-compensated operational amplifier;
• and
• when the shunt voltage (Ush) is higher than or equal to a first predefined reference voltage (Uref1), limiting a current through the first switch (M1).

A system comprising:

• a current protection system, comprising:
• a shunt sub-system, arranged between an input and an output of the current protection system,
• the shunt sub-system comprising a first switch (M1) and a shunt resistor, the first switch (M1) arranged in series with the shunt resistor;
• a comparator sub-system, arranged in parallel to the shunt resistor,
• the comparator sub-system being configured for comparing a shunt voltage (Ush) across the shunt resistor with a reference voltage (Uref), the comparator sub-system comprising an offset-compensated operational amplifier;
• and
• a control component, arranged between an output of the comparator sub-system and a first control input of the first switch (M1);
• a power generator;
• and
• at least one load, connected in series with the current protection system and the power generator.