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UC1826 Folha de dados(PDF) 9 Page - Texas Instruments |
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UC1826 Folha de dados(HTML) 9 Page - Texas Instruments |
9 / 11 page age VRS across the shunt resistor. By attenuating the maximum voltage at VAO to be equal to VRS, the current control loop keeps the load from exceeding its current limit. If the ILIM pin is connected to VREF, the Voh is set at 3.0V. The maximum current limit clamp can be reduced by reducing the voltage on ILIM to less than 3.0V as described in the ILIM pin description. Design Example: Figure 7 is an open loop test that lets the user test the circuit blocks discussed without having to build an entire control loop. The pulse width can be varied by either the VADJ or the VISENSE inputs. Figure 8 shows an isolated power supply using the UC1826 sec- ondary side average current mode controller. UC1826 UC2826 UC3826 CIRCUIT BLOCK DESCRIPTION (cont.) Figure 7. Open Loop Circuit 9 UDG-95017-1 |
Nº de peça semelhante - UC1826 |
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Descrição semelhante - UC1826 |
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