Hi, have just designed and built a pwm battery charger to charge from a 20w 1amp max solar panel. before I purchase a new battery I need to know something so I don't damage the battery.
My intention is to connect the battery directly to the pwm output of my circuit. The specs I entered on ltspice for a battery with a starting voltage of 13.18v and internal resistance of 1.66 ohms. . At 20v the average of the pwm was 14.34v as set by me in the design. Current draw 700ma.
At 16v again of course 14.34v and 700ma. Great efficiency.
Will the battery be damaged by a direct connection to the pwm output which is at a frequency of 576 cps? The maximum of the pulse is 20v or lower depending on the output of the solar panel. I get the same results as above over the range of all output voltages down to 14.34 then I get approx. the solar panel voltage.
Considering that the max cycle voltage of the battery I intend to get is 15v will the battery be damaged by the high pulses over 15v?
My intention is to connect the battery directly to the pwm output of my circuit. The specs I entered on ltspice for a battery with a starting voltage of 13.18v and internal resistance of 1.66 ohms. . At 20v the average of the pwm was 14.34v as set by me in the design. Current draw 700ma.
At 16v again of course 14.34v and 700ma. Great efficiency.
Will the battery be damaged by a direct connection to the pwm output which is at a frequency of 576 cps? The maximum of the pulse is 20v or lower depending on the output of the solar panel. I get the same results as above over the range of all output voltages down to 14.34 then I get approx. the solar panel voltage.
Considering that the max cycle voltage of the battery I intend to get is 15v will the battery be damaged by the high pulses over 15v?