ELECTRONIC AMPLIFIER FOR AMPLIFYING AN INPUT SIGNAL

The invention discloses an electronic amplifier (2, 2') for amplifying an input signal (u1), comprising: a branching node (N), a supply branch (4), a balance branch (6), an auxiliary branch (8) and a load branch (10), wherein all of the branches (4, 6, 8, 10) are in parallel connection to each other with respect to the branching node (N) and a reference potential (GND), wherein the supply branch (4) comprises at least one DC voltage supply (12) configured to supply a DC voltage (Vdc) to the branching node (N), wherein the balance branch (6) comprises a balancing device (24) configured to absorb and/or to store electric energy, the amplifier (2, 2') further comprising a current supply device (Linf) configured to supply a DC current, a control switch (14) to be switched between a pass current state and an block current state in dependence of the input signal (u1), a voltage-dependent current valve (22) configured to conduct a substantial DC current in one direction, wherein each of the control switch (14), the current valve (22) and the current source (Linf) is disposed in a different one of the supply branch (4), the balance branch (6) and the auxiliary branch (8), wherein the control switch (14) in the pass current state is configured to establish a current flow from the supply branch (4) through the current supply device (Linf) into either the auxiliary branch (8) or the balance branch (6), wherein the control switch (14) in the block current state is configured to establish a current flow from the current supply device (Linf) to the balancing device (24) by means of the current valve (22), and wherein the supply branch (4), the balance branch (6) and the auxiliary branch (8) are configured to provide an amplified signal to the load branch (10), said amplified signal being controlled only by the input signal (u1) at the control switch (14). L'invention concerne un amplificateur électronique (2, 2') pour l'amplification d'un signal d'entrée (u1), comprenant : un nœud de branchement (N), une branche d'alimentation (4), une branche d'équilibrage (6), une branche auxiliaire (8) et une branche de charge (10), toutes les branches (4, 6, 8, 10) étant connectées en parallèle les unes aux autres par rapport au nœud de branchement (N) et à un potentiel de référence (GND), la branche d'alimentation (4) comprenant au moins une alimentation en tension continue (12) configurée pour fournir une tension continue (Vdc) au nœud de branchement (N), la branche d'équilibrage