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8/12/2019 DC-DC Converters Using ORCAD
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DC to DC Converters
with PSpice
Professor Babak Fahimi, PhD
Director, Power Electronics and Controlled Motion Laboratory
niversity of !e"as at #rlin$ton
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8/12/2019 DC-DC Converters Using ORCAD
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DC to DC Converters
%& B'ck Convertera& Make the circ'it for b'ck converter
'sin$ 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
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8/12/2019 DC-DC Converters Using ORCAD
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8/12/2019 DC-DC Converters Using ORCAD
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9 Sim'late the circ'it and $et plots for capacitor c'rrent and
volta$es
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8/12/2019 DC-DC Converters Using ORCAD
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Similarly $et plots for ind'ctor c'rrent and volta$es
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8/12/2019 DC-DC Converters Using ORCAD
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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
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8/12/2019 DC-DC Converters Using ORCAD
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8/12/2019 DC-DC Converters Using ORCAD
8/22
a& Similarly $et plots for load c'rrent at different
switchin$ fre:'encies
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8/12/2019 DC-DC Converters Using ORCAD
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8/12/2019 DC-DC Converters Using ORCAD
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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
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8/12/2019 DC-DC Converters Using ORCAD
11/22
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8/12/2019 DC-DC Converters Using ORCAD
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a& Sim'late the circ'it and $et plots for capacitor c'rrent
and o'tp't
volta$e8
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8/12/2019 DC-DC Converters Using ORCAD
13/22
a& Similarly $et plots for ind'ctor c'rrent and volta$es
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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
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8/12/2019 DC-DC Converters Using ORCAD
15/22
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8/12/2019 DC-DC Converters Using ORCAD
16/22
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8/12/2019 DC-DC Converters Using ORCAD
17/22
a& Similarly $et plots for load c'rrent at different
switchin$ fre:'encies
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8/12/2019 DC-DC Converters Using ORCAD
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8/12/2019 DC-DC Converters Using ORCAD
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;& 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&
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8/12/2019 DC-DC Converters Using ORCAD
20/22
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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
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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
