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Digital Power Starter Kit 3 Firmware
DM330017-3, Rev.3.0
dsPIC33C Buck Converter Peak Current Mode Control Example
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Digital Power Starter Kit 3 Firmware
DM330017-3, Rev.3.0
dsPIC33C Buck Converter Peak Current Mode Control Example
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Peak Current Mode Control Slope Compensation Settings. More...
#include <power_control/devices/dev_buck_typedef.h>
Inheritance diagram for BUCK_SLOPE_COMP_SETTINGS_s: Collaboration diagram for BUCK_SLOPE_COMP_SETTINGS_s:Data Fields | |
| volatile uint16_t | dac_instance |
| Digital-to-analog converter instance used to generate the the slope compensation ramp. More... | |
| volatile uint16_t | cmp_instance |
| Analog comparator triggering on the peak current feedback signal. More... | |
| volatile uint16_t | cmp_input |
| Analog comparator input option A to D (0=A, 1=B, 2=C, 3=D) More... | |
| volatile uint16_t | pwm_trigger_input |
| PWM current limit PCI input source (must match comparator declared by cmp_instance) More... | |
| volatile uint16_t | slew_rate |
| Integer equivalent of compensation ramp slew rate in [V/µs]. More... | |
| volatile uint16_t | slope_start_trigger |
| Period counter value at with the slope start is triggered. More... | |
| volatile uint16_t | slope_stop_trigger |
| Period counter value at with the slope stop is triggered. More... | |
| volatile uint16_t | initial_dac_value |
| Initial Digital-to-Analog converter reference value (used when peripheral is enabled or being reset) More... | |
| volatile uint16_t * | ptr_duty_cycle |
| Pointer to switch node duty cycle register. More... | |
| volatile uint16_t | duty_cycle_limit |
| Switch node duty cycle limit value. More... | |
| Data Fields inherited from BUCK_CONVERTER_s | |
| volatile struct BUCK_CONVERTER_STATUS_s | status |
| BUCK operation status bits. More... | |
| volatile struct BUCK_STATE_ID_s | state_id |
| BUCK state machine operating state ID. More... | |
| volatile struct BUCK_CONVERTER_STARTUP_s | startup |
| BUCK startup timing settings. More... | |
| volatile struct BUCK_CONVERTER_SETTINGS_s | set_values |
| Control field for global access to references. More... | |
| volatile struct BUCK_CONVERTER_DATA_s | data |
| BUCK runtime data. More... | |
| volatile struct BUCK_FEEDBACK_SETTINGS_s | feedback |
| BUCK converter feedback settings. More... | |
| volatile struct BUCK_SWITCH_NODE_SETTINGS_s | sw_node [BUCK_NO_OF_PHASES] |
| BUCK converter switch node settings. More... | |
| volatile struct BUCK_GPIO_SETTINGS_s | gpio |
| BUCK converter additional GPIO specification. More... | |
| volatile struct BUCK_LOOP_SETTINGS_s | v_loop |
| BUCK voltage control loop object. More... | |
| volatile struct BUCK_LOOP_SETTINGS_s | i_loop [BUCK_NO_OF_PHASES] |
| BUCK Current control loop objects. More... | |
Peak Current Mode Control Slope Compensation Settings.
Generic power converter switch-node specifications.
Settings covered in this sub data structure are only used in peak current mode control (PCMC) and are ignored in all other control modes such as voltage mode control (VMC) or average current mode control (ACMC). Peak current mode control is enabled by setting
By enabling peak current mode control, an on-chip analog comparator with integrated ramp generator DAC will be initialized and configured to truncate the active duty cycle of the main PWM generator instance, declared in the switch node settings of the buck converter object. The compensation ramp is controlled by the PWM generator triggers 1 and 2, where the setting of Trigger 1 determines the starting point of the ramp and Trigger 2 determines the stop-point of the ramp. The ramp will automatically reset when the analog comparator has tripped or when the stop-point has been reached without, whatever event occurs first.
Definition at line 388 of file dev_buck_typedef.h.
| volatile uint16_t cmp_input |
Analog comparator input option A to D (0=A, 1=B, 2=C, 3=D)
Definition at line 392 of file dev_buck_typedef.h.
| volatile uint16_t cmp_instance |
Analog comparator triggering on the peak current feedback signal.
Definition at line 391 of file dev_buck_typedef.h.
| volatile uint16_t dac_instance |
Digital-to-analog converter instance used to generate the the slope compensation ramp.
Definition at line 390 of file dev_buck_typedef.h.
| volatile uint16_t duty_cycle_limit |
Switch node duty cycle limit value.
Definition at line 399 of file dev_buck_typedef.h.
| volatile uint16_t initial_dac_value |
Initial Digital-to-Analog converter reference value (used when peripheral is enabled or being reset)
Definition at line 397 of file dev_buck_typedef.h.
| volatile uint16_t* ptr_duty_cycle |
Pointer to switch node duty cycle register.
Definition at line 398 of file dev_buck_typedef.h.
| volatile uint16_t pwm_trigger_input |
PWM current limit PCI input source (must match comparator declared by cmp_instance)
Definition at line 393 of file dev_buck_typedef.h.
| volatile uint16_t slew_rate |
Integer equivalent of compensation ramp slew rate in [V/µs].
Definition at line 394 of file dev_buck_typedef.h.
| volatile uint16_t slope_start_trigger |
Period counter value at with the slope start is triggered.
Definition at line 395 of file dev_buck_typedef.h.
| volatile uint16_t slope_stop_trigger |
Period counter value at with the slope stop is triggered.
Definition at line 396 of file dev_buck_typedef.h.