Power Supply Design
      DC-to-DC converters

     DC-to-DC converters are a class of devices that convert an input DC voltage to another DC voltage. They are most often used to increase a DC voltage significantly or to generate a DC voltage of opposite polarity. Reducing DC voltage levels are typically accomplished with resistor, zener diodes, and/or voltage regulators in a manner similar to the methods discussed in Linear power supplies. There are two basic types of DC-to-DC converters:

 
   
 
Switching-type (Step-up or Inverting) Regulators: those that utilize transistor switches to store energy in capacitors or inductors. The stored energy is used to step up the voltage or change its polarity. These regulators are actually a subset of the class of general switching regulators that are discussed in Switching supplies
Push-pull/Flyback Regulators: These regulators convert a lower Dc input voltage to AC and then use a step-up transformer to increase the AC voltage, which is converted back to a higher-level DC.
 

Power Supply Design

 
Power Supply Relate
 
Power Supply Circuit
Step-Up DC-DC Converter
   
 
Circuit Collection of DC-to-DC converters
Switching-type step-up DC- to-DC converter
This Switching-type step-up DC- to-DC converter use IC LM2577 for convert a +/-5 V DC input voltage to +/-12 V DC@ 800 mA
Flyblack regulator (+/-12 V)
The Flyblack converter use IC LM2587-12 ,converts a voltage in the range of 4 to 6 V DC to +/- 12 V DC
     


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