Design, draw and simulate using Multisim an automatic solar powered lamp circuit

diagram. The design should automatically switches on three parallel high power white

LEDs each $2\mathrm{.}7$Volts, $30$mA in the evening and stay on for $10$ hours using a $6$ Volt,

$4\mathrm{.}5$Ah rechargeable battery. During the day time the solar panel should charge the

$4\mathrm{.}5$Ah battery and switches off the white LEDs. The design should consist the

following: $[7$ Marks$]$

$12$ volt solar panel, used to charge the battery during the day time.

$12$Volt $100$ ohms PCB Relay which switches on and off the LED lights during

the evening and night respectively.

$$ Charger controller resistor connected in series with Silicon diode D$1$with $0\mathrm{.}7$V

and the solar panel to drop the voltage and block the battery reverse current

flowing back to the solar panel.

$$ Charger indicator Red LED which uses $1\mathrm{.}8$volts, $15$mA$-$during the day time it

is switched on and off during the evening when the battery is not charging.

$$ The high value $4700$F capacitor C$1$ to act as a buffer for the clean switching

of the relay and also to prevent relay clicking when the input voltage reduces

momentarily

$$ Switch S$1,$ S$2,$ and S$3$ to turn off the lamps separately when not in use.

$1.$ What size of resistor is needed to connect in series with the white LED to

restrict the current flow through LEDs? $[2$ Marks$]$

$2.$ What size of the resistor should be connected in series with the charger

indicator red LED to restrict the current flow through the LED? $[2$ Marks$]$

$3.$ What size of solar panel active power in watts needed to charge the battery for

the period of $5$hrs after used for $10$hrs supplying the white LEDs, assuming the

battery was initial full charged before used $?$

$[5$ Marks$]$