OK I need/want to make a 12v battery charger that itself is powered by 12v. I've attached the schematic that the website gave me.
Unfortunately, though I have soldered and worked with electronics before I'm not much at reading schematics. Trying myself to interpret it along with the help of the internet this is what I thought all the labels were:
F1 = 3A fuse
C1 = 33uF capacitor
C2 = Capacitor? It doesn't give value, maybe meant to be 5uF
C3 = 1000uF 25v capacitor
C4 = 1000uF 25v capacitor
C5 = 10uF 25v capacitor
R1 = 12 kohm resistor
R2 = 1 kohm resistor
R3 = 470 ohm resistor
R4 = 10 ohm 2 watt resistor
R5 = 10 ohm 2 watt resistor
U1 = 555 IC
U2 = 7815 voltage regulator
Q1 = 2SD525 transistor
Q2 = 2SB595 transistor
D1 = 1N4004 diode
D2 = 1N4004 diode
D3 = 1N4004 diode
D4 = 1N4004 diode
D5 = LED
J1 = No idea, what does the circle mean?
J2 = No idea, what does the circle mean?
J3 = No idea, what does the circle mean?
So, would anyone please be able to tell me if I've interpreted this right and what C2 and J1, J2, J3 mean? Thanks
Also, something I've never understood about circuit schematics:
Where is the other voltage input? This is for a charger which uses a 10-15v input to charge lead acid batteries, but the schematic only shows one point for 10-15v input. Where does the other wire go? The same conundrum also applies for the output leads which I'm meant to connect to the battery. This has always confused me and put me off building from schematics.
Also, I know the 3-pronged fork means "ground" but what are you actually meant to do with the ground wire? Just leave it hanging or solder to the enclosure or something?
Thanks for any help with my questions.
Unfortunately, though I have soldered and worked with electronics before I'm not much at reading schematics. Trying myself to interpret it along with the help of the internet this is what I thought all the labels were:
F1 = 3A fuse
C1 = 33uF capacitor
C2 = Capacitor? It doesn't give value, maybe meant to be 5uF
C3 = 1000uF 25v capacitor
C4 = 1000uF 25v capacitor
C5 = 10uF 25v capacitor
R1 = 12 kohm resistor
R2 = 1 kohm resistor
R3 = 470 ohm resistor
R4 = 10 ohm 2 watt resistor
R5 = 10 ohm 2 watt resistor
U1 = 555 IC
U2 = 7815 voltage regulator
Q1 = 2SD525 transistor
Q2 = 2SB595 transistor
D1 = 1N4004 diode
D2 = 1N4004 diode
D3 = 1N4004 diode
D4 = 1N4004 diode
D5 = LED
J1 = No idea, what does the circle mean?
J2 = No idea, what does the circle mean?
J3 = No idea, what does the circle mean?
So, would anyone please be able to tell me if I've interpreted this right and what C2 and J1, J2, J3 mean? Thanks
Also, something I've never understood about circuit schematics:
Where is the other voltage input? This is for a charger which uses a 10-15v input to charge lead acid batteries, but the schematic only shows one point for 10-15v input. Where does the other wire go? The same conundrum also applies for the output leads which I'm meant to connect to the battery. This has always confused me and put me off building from schematics.
Also, I know the 3-pronged fork means "ground" but what are you actually meant to do with the ground wire? Just leave it hanging or solder to the enclosure or something?
Thanks for any help with my questions.