b Diode Circuit
Diode Circuit A) Freewheeling Diode Circuit Basic circuit diagram: freewheeling diode Fig. Switching over voltage of a contactor with diode Advantage : Switching over voltage limited to 0.7 volt Disadvantage: Breaking delay, breaking time increased by a factor 6 to 9. Note: Above disadvantage can be used to your advantage if, for example, a temporary voltage drop of around several milliseconds has to be bridged B) Circuit with One Diode / Zener Diode Diode Assembly Fig. Basic circuit diagram: diode assembly Fig. : Switching over voltage of a contactor zener & diode Advantage: Switching over voltage limited to 10 volt Disadvantage: Breaking delay, breaking time increased by a factor 2 to 6 Note: Above disadvantage can be used to your advantage if, for example, a temporary voltage drop of around several milliseconds has to be bridged ........