Two LED constant current drive power control decomposition
fecha:2011-06-20 11:26
estado:para resolver
pregunta:admin
t has been called the false constant, because its essence is a limit, not through op amp comparison, the obtained constant value.
The second constant current mode, switching power supply should be called a style. This control mode and constant voltage control mode switching power supply is similar. We all know that constant pressure to do it with a TL431, because it has an internal 2.5 V reference, and then use the resistor divider mode. When the output voltage is higher when, or low point, whe
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