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
........
No comments:
Post a Comment