A single active bridge converter comprising: a transformer comprising a primary winding and a secondary winding; a primary side circuit electrically coupled to said primary winding and comprising an H bridge circuit; and a secondary side circuit electrically coupled to said secondary winding, characterized in that said secondary side circuit comprises: a switch configured to selectively short said transformer secondary winding, said switch comprising: first and second serially-coupled diodes (160, 162), wherein a first side of said secondary winding is coupled to a first node defined between said first and second serially-coupled diodes (160, 162); third and fourth serially-coupled diodes (164, 166), wherein a second side of said secondary winding is coupled to a second node defined between said third and fourth serially-coupled diodes (164, 166); and a switching device electrically coupled between a third node defined between said first and third diodes (160, 164) and a fourth node defined between said second and fourth diodes (162, 166), wherein when closed, said switching device is configured to cause voltage applied across said secondary winding to be substantially zero; and a passive circuit comprising: a fifth diode electrically coupled in series with said switch; a sixth diode electrically coupled in series with said switch; and a first capacitor coupled at the second node in series with a second capacitor, the first and second capacitors (912, 916) being connected in parallel between an output of the converter and the serially-coupled fifth diode, switch, and sixth diode. a transformer comprising a primary winding and a secondary winding; a primary side circuit electrically coupled to said primary winding and comprising an H bridge circuit; and a secondary side circuit electrically coupled to said secondary winding, characterized in that said secondary side circuit comprises: a switch configured to selectively short said transformer secondary winding, said switch comprising: first and second serially-coupled diodes (160, 162), wherein a first side of said secondary winding is coupled to a first node defined between said first and second serially-coupled diodes (160, 162); third and fourth serially-coupled diodes (164, 166), wherein a second side of said secondary winding is coupled to a second node defined between said third and fourth serially-coupled diodes (164, 166); and a switching device electrically coupled between a third node defined between said first and third diodes (160, 164) and a fourth node defined between said second and fourth diodes (162, 166), wherein when closed, said switching device is configured to cause voltage applied across said secondary winding to be substantially zero; and a passive circuit comprising: a fifth diode electrically coupled in series with said switch; a sixth diode electrically coupled in series with said switch; and a first capacitor coupled at the second node in series with a second capacitor, the first and second capacitors (912, 916) being connected in parallel between an output of the converter and the serially-coupled fifth diode, switch, and sixth diode. a switch configured to selectively short said transformer secondary winding, said switch comprising: first and second serially-coupled diodes (160, 162), wherein a first side of said secondary winding is coupled to a first node defined between said first and second serially-coupled diodes (160, 162); third and fourth serially-coupled diodes (164, 166), wherein a second side of said secondary winding is coupled to a second node defined between said third and fourth serially-coupled diodes (164, 166); and a switching device electrically coupled between a third node defined between said first and third diodes (160, 164) and a fourth node defined between said second and fourth diodes (162, 166), wherein when closed, said switching device is configured to cause voltage applied across said secondary winding to be substantially zero; and first and second serially-coupled diodes (160, 162), wherein a first side of said secondary winding is coupled to a first node defined between said first and second serially-coupled diodes (160, 162); third and fourth serially-coupled diodes (164, 166), wherein a second side of said secondary winding is coupled to a second node defined between said third and fourth serially-coupled diodes (164, 166); and a switching device electrically coupled between a third node defined between said first and third diodes (160, 164) and a fourth node defined between said second and fourth diodes (162, 166), wherein when closed, said switching device is configured to cause voltage applied across said secondary winding to be substantially zero; and a passive circuit comprising: a fifth diode electrically coupled in series with said switch; a sixth diode electrically coupled in series with said switch; and a first capacitor coupled at the second node in series with a second capacitor, the first and second capacitors (912, 916) being connected in parallel between an output of the converter and the serially-coupled fifth diode, switch, and sixth diode. a fifth diode electrically coupled in series with said switch; a sixth diode electrically coupled in series with said switch; and a first capacitor coupled at the second node in series with a second capacitor, the first and second capacitors (912, 916) being connected in parallel between an output of the converter and the serially-coupled fifth diode, switch, and sixth diode.