[ITEM]
21.10.2018

Viper Smps Design Software

47

VIPer ® high-voltage. Low power off-line SMPS primary switcher. Fixed frequency off line converter. Tools & Software Evaluation Tools Solution.

The Buck Converter Design Looking at the given circuit diagram we see that the input stage incorporates a surge limiting resistor which quite acts like a fuse, a diode for rectifying the AC, and an LC filter network for further filtration of the DC riples. The LC filter employed here ensures better DC stabilization and enhanced EMI response. The capacitor Cin1 may be introduced for further reinforcing the EMI functionality. The IC VIPer12A becomes the main PWM processor device which single handedly performs the entire buck conversion in the circuit.

Main Features The main specifications of the configuration may be understood as follows: • AC input voltage Vinac 80 - 285Vac • Output current Iout 30mA • Output current Iout 250mA • Output voltage Vout1 +24±10%V • Output voltage Vout2 +5V±5% • Switching frequency 60 kHz • Output Power ~ 1W How it Works The circuit facilitates two outputs, rhe 24V output is achieved through a buck converter configuration while the 5V output via fly back mode. Download software keuangan sekolah gratis1481758. The feedback voltage to the IC is acquired from Vout1 for the required regulation of the output, this supply is also applied to the IC Vdd pin.

The above wiring becomes possible by using a single high voltage diode and just one capacitor, to be precise D1 and C3, making the connections and costing much simpler. The employed inductor L consists of two windings which are coupled across with each other over a common ferrite core. The winding are done through appropriate turn ratios, where N1 = 200 turns and N2 = 60 turns. Both these are wound over a PANASONIC ELC10D152E ferrite core material.

Zener diodes z1 and z2 are installed in order to safeguard the outputs against over voltages. A dummy load resistor is fixed across Vout1 so that appropriate regulation can be executed over both the outputs during open load situations. Though the addition of the above resistor affects the efficiency a bit, it superbly improves voltage regulation response of the circuit. The rectifier diodes fixed at the output are fast response fast recovery types. D1 is a high voltage diode as it might be subjected to high reverse voltages delivered by the DC bus voltage. D2 is a normal diode.

[/ITEM]
[/MAIN]
21.10.2018

Viper Smps Design Software

8

VIPer ® high-voltage. Low power off-line SMPS primary switcher. Fixed frequency off line converter. Tools & Software Evaluation Tools Solution.

The Buck Converter Design Looking at the given circuit diagram we see that the input stage incorporates a surge limiting resistor which quite acts like a fuse, a diode for rectifying the AC, and an LC filter network for further filtration of the DC riples. The LC filter employed here ensures better DC stabilization and enhanced EMI response. The capacitor Cin1 may be introduced for further reinforcing the EMI functionality. The IC VIPer12A becomes the main PWM processor device which single handedly performs the entire buck conversion in the circuit.

Main Features The main specifications of the configuration may be understood as follows: • AC input voltage Vinac 80 - 285Vac • Output current Iout 30mA • Output current Iout 250mA • Output voltage Vout1 +24±10%V • Output voltage Vout2 +5V±5% • Switching frequency 60 kHz • Output Power ~ 1W How it Works The circuit facilitates two outputs, rhe 24V output is achieved through a buck converter configuration while the 5V output via fly back mode. Download software keuangan sekolah gratis1481758. The feedback voltage to the IC is acquired from Vout1 for the required regulation of the output, this supply is also applied to the IC Vdd pin.

The above wiring becomes possible by using a single high voltage diode and just one capacitor, to be precise D1 and C3, making the connections and costing much simpler. The employed inductor L consists of two windings which are coupled across with each other over a common ferrite core. The winding are done through appropriate turn ratios, where N1 = 200 turns and N2 = 60 turns. Both these are wound over a PANASONIC ELC10D152E ferrite core material.

Zener diodes z1 and z2 are installed in order to safeguard the outputs against over voltages. A dummy load resistor is fixed across Vout1 so that appropriate regulation can be executed over both the outputs during open load situations. Though the addition of the above resistor affects the efficiency a bit, it superbly improves voltage regulation response of the circuit. The rectifier diodes fixed at the output are fast response fast recovery types. D1 is a high voltage diode as it might be subjected to high reverse voltages delivered by the DC bus voltage. D2 is a normal diode.