IXDN0036 datasheet(29/41 Pages) IXYS

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ATPWMx Demonstrator Software

6-30

ATAVRFBKIT / EVLD001 User Guide

7597A–AVR–02/06

6.2.2.2

Output variables

which can impact

other state

machines:

• gv_lamp_state is set from the LAMP_OFF state to the

CONFIGURE_LAMP_PREHEAT state when the PFC is ready on the

PFC_CONTROL_LOOP state.

6.3

Lamp_ctrl.c

This file executes the Lamp state machine according to the scheduler in the

Main_pwmx_fluo_demo.c file.

6.3.1

Lamp State Machine

The Lamp state machine functional diagram is shown below:

The different states are outlined below:

Figure 6-5. Lamp State Machine

CONFIGURE_LAMP_PREHEAT

START_IGNITION

LAMP_PREHEAT

LAMP_NUMBER_CHECK

g_lamp_time_multiplier >= LAMP_PREHEAT_TIME_MULTIPLIER

gs_lamp_check_number >= 15

LAMP_OFF

gv_pfc_state==PFC_CONTROL_LOOP

gv_request_lamp_off ==1 during V_LAMP_CONV or

I_LAMP_CONV in ADC state machine in ADC state machine

g_inverter_comparison_values.ontime1 <

INVERTER_XXX_LAMP_IGNITION_HALF_PERIOD

IGNITION

Get_i_lamp() >= ONE_LAMP_MINIMUM_IGNITION_CURRENT

&& et_v_lamp() < IGNITION_MAXIMUM_IGNITION_VOLTAGE

RESTART_PREHEAT

gs_lamp_ignition_tries <

LAMP_IGNITION_MAX_TRIES

START_RUN_MODE

g_inverter_comparison_values.ontime1 >=

INVERTER_RUN_HALF_PERIOD

RUN_MODE

g_number_of_lamps > 0

TOO_MANY_LAMP_IGNITION_TRIES

NO_LAMP

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