Apparatus for protecting multiple output rectifiers in a current-fed DC-to DC converter

A current-fed DC-to-DC converter having a plurality of output rectifiers, the converter comprising:

• a first isolation diode coupled to the anode of a first output rectifier;
• a second isolation diode coupled to the anode of a second output rectifier;
• and
• a transient voltage suppression element coupled to the first isolation diode and the second isolation diode, the transient voltage suppression element operable to limit the magnitude of voltage transients in the converter, thereby preventing damage to the first and second output rectifiers.

A current-fed DC-to-DC converter having an input choke, a power transformer, and a plurality of output rectifiers, the converter comprising:

• a first isolation diode coupled to the anode of a first output rectifier;
• a second isolation diode coupled to the anode of a second output rectifier;
• and
• a transient voltage suppression element coupled to the first isolation diode and the second isolation diode, the transient voltage suppression element operable to limit the magnitude of voltage transients created by the input choke and the power transformer during operation of the converter, thereby preventing damage to the first and second output rectifiers.

A current-fed DC-to-DC converter comprising:

• an input choke operable to reduce current fluctuation in the converter;
• a power transformer coupled to the input choke, the power transformer operable to transform electrical energy at one voltage magnitude into electrical energy at another voltage magnitude;
• a first output rectifier coupled to the input choke;
• a first isolation diode coupled to the anode of the first output rectifier;
• a second output rectifier coupled to the power transformer;
• a second isolation diode coupled to the anode of the second output rectifier;
• and
• a transient voltage suppression element coupled to the first isolation diode and the second isolation diode, the transient voltage suppression element operable to limit the magnitude of voltage transients created by the input choke and the power transformer during operation of the converter, thereby preventing damage to the first and second output rectifiers.