proportional integral derivative controller

Collaboration diagram for proportional integral derivative controller:

Data Structures
struct	a_pid
	instance structure for PID controller More...

Macros
#define	a_pid_init(ctx)
	initialize for PID controller

Typedefs
typedef struct a_pid	a_pid

Functions
void	a_pid_set_kpid (a_pid *ctx, a_float kp, a_float ki, a_float kd)
	set proportional integral derivative constant for PID controller
a_float	a_pid_run (a_pid *ctx, a_float set, a_float fdb)
	calculate for PID controller
a_float	a_pid_pos (a_pid *ctx, a_float set, a_float fdb)
	calculate for positional PID controller
a_float	a_pid_inc (a_pid *ctx, a_float set, a_float fdb)
	calculate for incremental PID controller
void	a_pid_zero (a_pid *ctx)
	zeroing for PID controller

Detailed Description

Macro Definition Documentation

a_pid_init

#define a_pid_init

(

ctx

)

Value:

a_pid_zero(ctx)

initialize for PID controller

Parameters

[in,out]

ctx

points to an instance of PID controller

Function Documentation

a_pid_inc()

a_float a_pid_inc	(	a_pid *	ctx,
		a_float	set,
		a_float	fdb )

calculate for incremental PID controller

Parameters

[in,out]	ctx	points to an instance of PID controller
[in]	set	setpoint value
[in]	fdb	feedback value

Returns

output value

a_pid_pos()

a_float a_pid_pos	(	a_pid *	ctx,
		a_float	set,
		a_float	fdb )

calculate for positional PID controller

Parameters

[in,out]	ctx	points to an instance of PID controller
[in]	set	setpoint value
[in]	fdb	feedback value

Returns

output value

a_pid_run()

a_float a_pid_run	(	a_pid *	ctx,
		a_float	set,
		a_float	fdb )

calculate for PID controller

Parameters

[in,out]	ctx	points to an instance of PID controller
[in]	set	setpoint value
[in]	fdb	feedback value

Returns

setpoint value

a_pid_set_kpid()

void a_pid_set_kpid	(	a_pid *	ctx,
		a_float	kp,
		a_float	ki,
		a_float	kd )

set proportional integral derivative constant for PID controller

Parameters

[in,out]	ctx	points to an instance of PID controller
[in]	kp	proportional constant
[in]	ki	integral constant
[in]	kd	derivative constant

a_pid_zero()

void a_pid_zero

(

a_pid *

ctx

)

zeroing for PID controller

Parameters

[in,out]

ctx

points to an instance of PID controller