An alternative name is bypass capacitor as it is used to bypass the power supply or other high impedance component of a circuit. Capacitive coupling is the transfer of energy within an electrical network or between distant networks by means of displacement current between circuits nodes induced by the electric fieldthis coupling can have an intentional or accidental effect. Ansi C93 1 1999 Coupling Capacitor Voltage High Voltage Is There A Difference Between Decoupling Capacitor And A By Capacitor Characteristics While decoupling capacitors are connected in parallel to the signal path and are used to filter out the ac component coupling capacitors on the other hand are connected in series to the signal path and are used to filter out the dc component of a signal. Coupling capacitor meaning . Designed to operate from a single 18 v to 55 v power supply the ana...