if you compensate for a diode forward voltage, than as battery gets charged current drops so does diode forward voltage and you will have a voltage from your charger higher then what you was aiming for. just don't increase charging voltage above 2.4v/cell even knowing that diode is going to drop a few mV. Use shottky diode to half the drop. And if you really want to compensate for diode drop, than you should move the feedback circuit connection point between the diode and load. In other words, it would require power supply customization.
My bench power supply has max output volts to 17V And 2A Im trying to charge a 12V car batt lead acid When i connect the psu to batt the psu drops to 11.5 V??? And fluctuating (11.1V-12v) And amp fluctuate (0.00 to 2.99) What is wrong here?
You have a voltage drop because the dead battery is acting like a resistor. The voltage will go back up to 12 volts as the battery is charged and no longer a resister. If the battery is shorted out and will not charge then your volts will not go above 11.5.
Please point me to the common 50 Amp diodes on ebay! There is no such thing! There are 50V / 10 Amp, you might get 30 Amp, but 50 amp.....are you sure, I have never seen them a a single package, only as a recrifier.
That Power Supply Turns on Because Unlike Linear Power Supplies That uses 110-120Volts AC too 220-240Volts AC too power Everything in it Your Power Supply is not Linear and It uses the Output too power the Panel and Since it uses the Output it Turns on when an DC is put into the Output if you used a High Current Linear Not Switching Power Supply that uses the AC too Power the Panel Display it will NOT Turn on for it will not like the Electricity go Pass the Bridge Rectifier it will not make AC and it will not Turn your DC Power into AC Power and it will not Power up the Display for the Display of a Linear Power Supply for the Display will not Run on DC it only Runs on AC so hooking up a DC too the output of a Linear Power Supply will do NOTHING
if you compensate for a diode forward voltage, than as battery gets charged current drops so does diode forward voltage and you will have a voltage from your charger higher then what you was aiming for. just don't increase charging voltage above 2.4v/cell even knowing that diode is going to drop a few mV. Use shottky diode to half the drop. And if you really want to compensate for diode drop, than you should move the feedback circuit connection point between the diode and load. In other words, it would require power supply customization.
Youare right, but a 12V battery can be charged at 2.5V per cell (15V total)
thanks, this solves a big problem
Super helpful, thanks.
My bench power supply has max output volts to 17V
And 2A
Im trying to charge a 12V car batt lead acid
When i connect the psu to batt the psu drops to 11.5 V??? And fluctuating (11.1V-12v)
And amp fluctuate (0.00 to 2.99)
What is wrong here?
You have a voltage drop because the dead battery is acting like a resistor. The voltage will go back up to 12 volts as the battery is charged and no longer a resister. If the battery is shorted out and will not charge then your volts will not go above 11.5.
can you overcharge a lead acid battery?
U need to pass rated current through that diode to measure its forward voltage or in your case you should measure it on circuit.
How many amps should i be using on why am i getting 0?
What about current? Is the battery drawing the current, or is the power supply providing the current displayed?
thank you for your video it makes sense, however it is the 3rd video I have seen and it is a third and a bit different way to do it, ha ha
nice power supply
Super.
The diode It is 10amp 50v??? Because this diode 50amp, don't exist
Please point me to the common 50 Amp diodes on ebay! There is no such thing! There are 50V / 10 Amp, you might get 30 Amp, but 50 amp.....are you sure, I have never seen them a a single package, only as a recrifier.
That Power Supply Turns on Because Unlike Linear Power Supplies That uses 110-120Volts AC too 220-240Volts AC too power Everything in it Your Power Supply is not Linear and It uses the Output too power the Panel and Since it uses the Output it Turns on when an DC is put into the Output if you used a High Current Linear Not Switching Power Supply that uses the AC too Power the Panel Display it will NOT Turn on for it will not like the Electricity go Pass the Bridge Rectifier it will not make AC and it will not Turn your DC Power into AC Power and it will not Power up the Display for the Display of a Linear Power Supply for the Display will not Run on DC it only Runs on AC so hooking up a DC too the output of a Linear Power Supply will do NOTHING
drunken tech rambling
drunken tech rambling