Electronic circuit and capacitor discharge system comprising electronic circuit

An electronic circuit (101) for controlling a spark of a spark plug (SP1) in a capacitor discharge ignition system (100) for a combustion engine, wherein the electronic circuit (101) comprises

• an ignition coil (110) dimensioned and configured to provide current to the spark plug (SP1), wherein the ignition coil (110) comprises a primary winding (L1), having a first primary terminal (TL1) and a second primary terminal (TL2), and a secondary winding (L2) across which the spark plug (SP1) is connectable,
• an ignition capacitor (C1) dimensioned and configured to supply energy to the primary winding (L1), wherein the ignition capacitor (C1) has a first capacitor terminal (TC1) and a second capacitor terminal (TC2), wherein the first capacitor terminal (TC1) is connected to the second primary terminal (TL2),
• a voltage source (130) dimensioned and configured to supply energy to at least one of the ignition capacitor (C1) and the primary winding (L1), wherein the voltage source (130) has a first source terminal (TS1) and a second source terminal (TS2),
• a first switch (SW1) connected to the first primary terminal (TL1) and the first source terminal (TS1),
• a second switch (SW2) connected to the second capacitor terminal (TC2) and the second source terminal (TS2), and
• a third switch (SW3) connected to the second capacitor terminal (TC2) and the first source terminal (TS1).