battery charger has solar panel scheme
battery charger scheme has solar panel:
This assembly is nothing but a dual comparator that connects the panel to the battery when the voltage across this last trap is low and the disconnected it exceeds a certain threshold.
As it is only by measuring the battery voltage, it is more particularly intended to lead batteries. a liquid or gelled electrolyte, which accommodate the most of this Fagon to do. The battery voltage is divided by R3 and fU before being applied has I'entree FQSA two comparators and IC2 t When lower the threshold determined by P2L IC2b output goes high which causes
also the output of IC2c high. T1 is saturated and the relay RL-adhesive, which allows the solar panel to power the battery and hence recharging via D3. When the terminal voltage of the battery exceeds the fixed threshold Pi, the output goes low Ida making it do the same in IC -... and therefore causes the takeoff of reiais thus avoiding overloading of the Demière. So that the thresholds determined by P and P2 are stable, they are powered via the controller integrated IC, carefully decouple the voltage from the solar panel via D2 and C4. Indeed, when switching of the relay, this voltage fluctuates Fagon high, which may affect the operation of the comparators.
Electronic compostates: Id: 78L05 [controller + 5V / 100mA, boftierT092) IC2: LM339 T: 2N2222A Di, D4: 1N914ou1N4148 D2 1N4004 D3: BY252, BY255, 1N5402LEDi: red LED Panel snlaire: TGM 500-12 [ 500 Evil, TGM 750-12 [750 mA), TGM 1000-1012 [1 A] for example (Selectronic) Ri, R5: 15kQl / 4W5 ° / o [brown, green, orange] Rz, Rfi! A7: 22 kB 1 / 4W 5% [red, red, orange] R3 220 k ^ 1 / 4W 5% [red, red, yellow] R4 100 k £ 2 1 / 4W 5% [brown, black, yellow ] R8 4.7 kQ. 1 / 4W 5%[yellow, purple, red] R9 6.8 kQ. 1 / 4W 5% [blue, gray, red] Rid: it 680 1 / 4W 5%[blue, gray, brown] Ci: 0.22 uF mylar Cz, C7: 10 uF / 25V radial chemical C3, C5, C6 0.1 uF mylar C4: 100 | iF / 25V axial chemical RLi: miniature relay FBR 244FUJITSU or equivalent 12V / 2RT / 1 A Pi, P2: potentiometer adjustable vertical CERMET 10 kQ PCB If: Switch 1 Circuit 3 positions 1 C1 14 feet support
This assembly is nothing but a dual comparator that connects the panel to the battery when the voltage across this last trap is low and the disconnected it exceeds a certain threshold.
also the output of IC2c high. T1 is saturated and the relay RL-adhesive, which allows the solar panel to power the battery and hence recharging via D3. When the terminal voltage of the battery exceeds the fixed threshold Pi, the output goes low Ida making it do the same in IC -... and therefore causes the takeoff of reiais thus avoiding overloading of the Demière. So that the thresholds determined by P and P2 are stable, they are powered via the controller integrated IC, carefully decouple the voltage from the solar panel via D2 and C4. Indeed, when switching of the relay, this voltage fluctuates Fagon high, which may affect the operation of the comparators.
Electronic compostates: Id: 78L05 [controller + 5V / 100mA, boftierT092) IC2: LM339 T: 2N2222A Di, D4: 1N914ou1N4148 D2 1N4004 D3: BY252, BY255, 1N5402LEDi: red LED Panel snlaire: TGM 500-12 [ 500 Evil, TGM 750-12 [750 mA), TGM 1000-1012 [1 A] for example (Selectronic) Ri, R5: 15kQl / 4W5 ° / o [brown, green, orange] Rz, Rfi! A7: 22 kB 1 / 4W 5% [red, red, orange] R3 220 k ^ 1 / 4W 5% [red, red, yellow] R4 100 k £ 2 1 / 4W 5% [brown, black, yellow ] R8 4.7 kQ. 1 / 4W 5%[yellow, purple, red] R9 6.8 kQ. 1 / 4W 5% [blue, gray, red] Rid: it 680 1 / 4W 5%[blue, gray, brown] Ci: 0.22 uF mylar Cz, C7: 10 uF / 25V radial chemical C3, C5, C6 0.1 uF mylar C4: 100 | iF / 25V axial chemical RLi: miniature relay FBR 244FUJITSU or equivalent 12V / 2RT / 1 A Pi, P2: potentiometer adjustable vertical CERMET 10 kQ PCB If: Switch 1 Circuit 3 positions 1 C1 14 feet support