Collaboration diagram for Operational Amplifier Configuration:

volatile uint16_t	sysOpAmp_Initialize (volatile uint16_t opaInstance, volatile bool disable_n_channel)
	Initializes the on-chip operational amplifier module. More...

volatile uint16_t	sysOpAmp_ModuleEnable (void)
	Enables the on-chip operational amplifier module. More...

volatile uint16_t	sysOpAmp_ModuleReset (void)
	Resets the on-chip operational amplifier module. More...

Detailed Description

As described in the Digital-to-Analog Converter (DAC) initialization section, EPC9143 requires a internally generated, tunable reference voltage to be applied to the external current sense shunt amplifier devices used to measure the inductor current during peration. This DAC output signal is buffered by using one of the available on-chip operational amlifiers.

Note: The DAC output signal is buffered by utilizing one of the availalbe on-chip operational amplifiers. Please refer to the Digital-to-Analog (DAC) Configuration section for details.

Function Documentation

◆ sysOpAmp_Initialize()

uint16_t sysOpAmp_Initialize	(	volatile uint16_t	opaInstance,
		volatile bool	disable_n_channel
	)

Initializes the on-chip operational amplifier module.

Returns: unsigned integer; 0=failure; 1=success

The EPC9143 300W 16th brick power module reference designs uses one of the on-chip operational amplifiers as buffer op-amp for the current reference signal applied to external high-side current sense shunt amplifier devices. This operational amplifier is initialized here.

Definition at line 34 of file init_opa.c.

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◆ sysOpAmp_ModuleEnable()

uint16_t sysOpAmp_ModuleEnable ( void )

Enables the on-chip operational amplifier module.

Returns: unsigned integer; 0=failure; 1=success

The on-chip operational amplifier module allows the configuration of multiple operational amplifier instances. The module itself provides an additional master enable bit to turn on/off the entire module.

Definition at line 77 of file init_opa.c.

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◆ sysOpAmp_ModuleReset()

uint16_t sysOpAmp_ModuleReset ( void )

Resets the on-chip operational amplifier module.

Returns: unsigned integer; 0=failure; 1=success

The on-chip operational amplifier module allows the configuration of multiple operational amplifier instances. The module itself provides an additional master enable bit to turn on/off the entire module as well as to enable/disable the N-inputs of individual op-amps. This function resets the op-amp module to its default disabling the N-channel inputs of all op-amps, disables all individual op-amps as well as turns of the op-amp module master switch.

Definition at line 102 of file init_opa.c.

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