mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
Let me first say I know nothing about how the Cheap Chinese MPPT controllers function or don't.
For the MPPT-60 it ALWAYS (depends on the operational mode configured, Solar charger, Wind charge controller, etc..) uses a PWM mode for the battery charging needs. Yes it might be fully switched on or even fully switched off but always uses a PWM charging mode. Ahead of the PWM charging function is the Buck Conversion stage which can easily be bypassed via a simple FET if need be. The Tracking function is ahead of the Buck Conversion stage - All functions are interconnected and communicate with each other via the on board micro processors.
What is this MPPT gizmo?
The tracking algorithm is where the magic comes into play and truly differentiates the higher quality controllers. Blue Sky on the 2000e simply has a user adjustable pot to set and forget - I have no idea how or even if the lower end cheapo units even try to scan for Vmp.
For the MPPT-60 it ALWAYS (depends on the operational mode configured, Solar charger, Wind charge controller, etc..) uses a PWM mode for the battery charging needs. Yes it might be fully switched on or even fully switched off but always uses a PWM charging mode. Ahead of the PWM charging function is the Buck Conversion stage which can easily be bypassed via a simple FET if need be. The Tracking function is ahead of the Buck Conversion stage - All functions are interconnected and communicate with each other via the on board micro processors.
What is this MPPT gizmo?
The tracking algorithm is where the magic comes into play and truly differentiates the higher quality controllers. Blue Sky on the 2000e simply has a user adjustable pot to set and forget - I have no idea how or even if the lower end cheapo units even try to scan for Vmp.
