Classic 2 slow flash behind grill

[boB]

It took me a long time to figure out what's going on here. The pulses look like they vary in frequency while maintaining a 50% duty cycle. I don't care about the frequency but the PWMs I've worked with all change the duty cycle.

Simply changing the Fq will only create internal heating /switching losses, which will subtract from the delivered power

Yep.  That would be a pretty bad way to use extra power !

It's actually PWM control, not frequency at a fixed Duty

[DEinME]

It took me a long time to figure out what's going on here. The pulses look like they vary in frequency while maintaining a 50% duty cycle. I don't care about the frequency but the PWMs I've worked with all change the duty cycle.

Simply changing the Fq will only create internal heating /switching losses, which will subtract from the delivered power

Yep.  That would be a pretty bad way to use extra power !

It's actually PWM control, not frequency at a fixed Duty

In that same graph (diagram 5, p. 43 of Rev H), in the top curve there is a "width (in volts)". How are these volts set.

I believe the Y axis is battery volts. I'm going to guess that the top dotted line is the charge setpoint and the bottom line is the setpoint from the AUX selection.  (?) I.e. if I'm using Waste Not Hi with -0.2V and the charge controller is in absorb at 59V, then the top line would be 59V and the bottom line would be 58.8V. (??)

Thanks.

PS I'm going to fit my browsing into some weekday instead of bugging youse on weekends.

Edit to add: found the width parameter on a config screen for WasteNot