Patent ID: 7009162
Filing Date: 2006-03-07
Classification: G05F

Abstract:
1. A photomultiplier power supply comprising: (a) a primary transformer winding for receiving an input voltage; (b) a plurality of power supply cells, wherein each cell comprises: (c) a secondary winding coupled to the primary transformer winding; (d) a first diode having a cathode connected to a high side of the secondary winding; (e) a second diode having an anode connected to the high side of the secondary winding; (f) a center tap connected to a low side of the secondary winding; (g) a first capacitor having a first side connected to the center tap and a second side connected to an anode of the first diode; (h) a second capacitor having a first side connected to the center tap and a second side connected to a cathode of the second diode; (i) a positive terminal of a given cell connected to a negative terminal of a following cell; (j) a negative terminal of a first cell connected to a photo cathode, a first center tap connected to a first dynode, and a second dynode connected to a positive terminal of the first cell; and (k) a connection pattern of connections (d) through (j) repeated until a positive terminal for a last cell is connected to a resistor connected in series with an anode terminal wherein any unused terminal in a last cell is left unconnected.