Post on 03-Jun-2018
8/12/2019 DC-DC Converters Using ORCAD
1/22
DC to DC Converters
with PSpice
Professor Babak Fahimi, PhD
Director, Power Electronics and Controlled Motion Laboratory
niversity of !e"as at #rlin$ton
8/12/2019 DC-DC Converters Using ORCAD
2/22
DC to DC Converters
%& B'ck Convertera& Make the circ'it for b'ck converter 'sin$ the followin$ parts(
)DC *volta$e so'rce&
)PLSE *volta$e so'rce&
+F%-. *Swtich&
*esistance&
L *+nd'ctance&
C *Capacitance&
D+/0..1 *Diode&
2/D3S+2/#L4C#PS5M
P## * For definin$ variables and their val'es& Do'ble click on the parameter 6P##7 and then 'se 6new col'mn7
option for addin$ the varibles and their val'es8
8/12/2019 DC-DC Converters Using ORCAD
3/22
8/12/2019 DC-DC Converters Using ORCAD
4/22
9 Sim'late the circ'it and $et plots for capacitor c'rrent and volta$es
8/12/2019 DC-DC Converters Using ORCAD
5/22
Similarly $et plots for ind'ctor c'rrent and volta$es
8/12/2019 DC-DC Converters Using ORCAD
6/22
9 For $ettin$ plots for load c'rrent at different val'es of d'ty cycle 'se
6Parametric sweep7 from 6Sim'lation parameters settin$s7 and then p't
6D'ty Cycle7 as the parameter name8 Specify its start val'e, end val'e and
increment8
8/12/2019 DC-DC Converters Using ORCAD
7/22
8/12/2019 DC-DC Converters Using ORCAD
8/22
a& Similarly $et plots for load c'rrent at different switchin$ fre:'encies
8/12/2019 DC-DC Converters Using ORCAD
9/22
8/12/2019 DC-DC Converters Using ORCAD
10/22
1& Boost Converter
b& Make the circ'it for boost converter 'sin$ the followin$ parts(
)DC *volta$e so'rce&
)PLSE *volta$e so'rce& +F%-. *Swtich&
*esistance&
L *+nd'ctance&
C *Capacitance&
D+/0..1 *Diode&
2/D3S+2/#L4C#PS5M
P## * For definin$ variables and their val'es&
Do'ble click on the parameter 6P##7 and then 'se 6new col'mn7option for addin$ the varibles and their val'es8
8/12/2019 DC-DC Converters Using ORCAD
11/22
8/12/2019 DC-DC Converters Using ORCAD
12/22
a& Sim'late the circ'it and $et plots for capacitor c'rrent and o'tp't
volta$e8
8/12/2019 DC-DC Converters Using ORCAD
13/22
a& Similarly $et plots for ind'ctor c'rrent and volta$es
8/12/2019 DC-DC Converters Using ORCAD
14/22
a& For $ettin$ plots for load c'rrent at different val'es of d'ty cycle 'se
6Parametric sweep7 from 6Sim'lation parameters settin$s7 and then p't
6D'ty Cycle7 as the parameter name8 Specify its start val'e, end val'e and
increment8
8/12/2019 DC-DC Converters Using ORCAD
15/22
8/12/2019 DC-DC Converters Using ORCAD
16/22
8/12/2019 DC-DC Converters Using ORCAD
17/22
a& Similarly $et plots for load c'rrent at different switchin$ fre:'encies
8/12/2019 DC-DC Converters Using ORCAD
18/22
8/12/2019 DC-DC Converters Using ORCAD
19/22
;& Fly Back Converter
b& Make the circ'it for Fly Back converter 'sin$ the followin$ parts(
)DC *volta$e so'rce&
)PLSE *volta$e so'rce&
+F%-. *Swtich&
*esistance&
L *+nd'ctance&
C *Capacitance& D+/0..1 *Diode&
8/12/2019 DC-DC Converters Using ORCAD
20/22
8/12/2019 DC-DC Converters Using ORCAD
21/22
a& Sim'late the circ'it and $et plots for o'tp't volta$e and c'rrent
8/12/2019 DC-DC Converters Using ORCAD
22/22
a& sin$ the parametric sweep $et plots for o'tp't c'rrent at different
d'ty cycles