Test apparatus and method for synthetically testing at least one switch device for a high-voltage battery of a vehicle

A test apparatus for simultaneously testing at least two switch devices for a high-voltage battery of a vehicle, comprising:

• a voltage source for generating an electrical test voltage between a positive high-voltage path and a negative high-voltage path of the at least two switch devices;
• a first connecting device and a first current source for feeding a first electrical test current into the positive high-voltage path, wherein the first connecting device, the first current source and the positive high-voltage path together form a first circuit when testing the at least two switch devices, and
• a second connecting device and a second current source for feeding a second electrical test current into the negative high-voltage path, wherein the second connecting device, the second current source and the negative high-voltage path together form a second circuit when testing the at least two switch devices, wherein
• the at least two switch devices are electrically connected in series, such that respective positive high-voltage paths of the at least two switch devices are part of the first circuit and respective negative high-voltage paths of the at least two switch devices are part of the second circuit,
• the first current source is configured to feed the first electrical test current into the respective positive high-voltage paths of the at least two switch devices, and
• the second current source is configured to feed the second electrical test current into the respective negative high-voltage paths of the at least two switch devices.