The SN6501 can drive push-pull converters that provide high output voltages of up to 30 V, or bipolar outputs of up to ±15 V. Using commercially available center-tapped transformers, with their rather low turns ratios of 0.8 to 5, requires different rectifier topologies to achieve high output voltages. #SLLSEA04407 to #SLLSEA0920 show some of these topologies together with their respective open-circuit output voltages.

Figure 8-8 Bridge Rectifier With Center-Tapped Secondary Enables Bipolar Outputs

Figure 8-10 Half-Wave Rectifier Without Center-Tapped Secondary Performs Voltage Doubling, Centered Ground Provides Bipolar Outputs

Figure 8-9 Bridge Rectifier Without Center-Tapped Secondary Performs Voltage Doubling

Figure 8-11 Half-Wave Rectifier Without Centered Ground and Center-Tapped Secondary Performs Voltage Doubling Twice, Hence Quadrupling V_IN