DSPIC30F2023-30I/PT Microchip Technology Inc., DSPIC30F2023-30I/PT Datasheet - Page 139
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DSPIC30F2023-30I/PT
Manufacturer Part Number
DSPIC30F2023-30I/PT
Description
DSP, 16-Bit, 12KB Flash, 512 RAM, 35 I/O, TQFP-44
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC30F2023-30IPT.pdf
(286 pages)
Specifications of DSPIC30F2023-30I/PT
A/d Inputs
12-Channels, 10-Bit
Comparators
4
Cpu Speed
30 MIPS
Eeprom Memory
0 Bytes
Input Output
35
Interface
I2C/SPI/UART
Ios
35
Memory Type
Flash
Number Of Bits
16
Package Type
44-pin TQFP
Programmable Memory
12K Bytes
Ram Size
512 Bytes
Timers
3-16-bit, 1-32-bit
Voltage, Range
3-5.5
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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12.34 APPLICATION EXAMPLES:
12.34.1 STANDARD PWM MODE
In standard PWM mode, the PWM output is typically
connected to a single transistor, which charges an
inductor, as shown in Figure 12-22. Buck and Boost
converters typically use standard PWM mode.
FIGURE 12-22:
© 2006 Microchip Technology Inc.
PWM1H
+V
+V
IN
PWM1H
IN
PWM1H
T
Inductor charges during T
ON
L1
versus Period controls power flow
T
ON
APPLICATIONS OF
STANDARD PWM MODE
Boost Converter
Buck Converter
Period
L1
T
OFF
ON
V
+
OUT
+
V
OUT
Preliminary
12.34.2 APPLICATION OF COMPLEMENTARY
Complementary mode PWM is often used in circuits
that use two transistors in a bridge configuration where
transformers are not used, as shown in Figure 12-23.
If transformers are used, then some means must be
provided to ensure that no net DC currents flow
through the transformer to prevent core saturation.
FIGURE 12-23:
PWM1H
PWM1L
+V
dsPIC30F1010/202X
IN
PWM1L
PWM1H
+V
PWM1H
IN
PWM MODE
Dead Time
Synchronous Buck Converter
Series Resonant Half Bridge Converter
PWM1L
C
R
APPLICATIONS OF
COMPLEMENTARY PWM
MODE
Period
L
Dead Time
R
T1
DS70178C-page 137
L1
Dead Time
V
OUT
+
V
+
OUT
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