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Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

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VUSB
C17
Capacitance
10uF
VBAT
VBAT
VUSB
VBAT
C24
Capacitance
10uF
VSOLAR
C18
Capacitance
100nF
VSOLAR
C19
Capacitance
68pF
C15
Capacitance
10uF
C21
Capacitance
100nF
C16
Capacitance
4u7 F
+3V3
C23
Capacitance
100nF
SOLAR POWER INTERFACE
VBAT
R14
Resistance
6k8 Ω
VUSB
R8
Resistance
15kΩ
R13
Resistance
68kΩ
U3
POWER CIRCUIT
Q1
R11
Resistance
1k5 Ω
Q1 Disconnects SOLAR input when both SOLAR and USB are connected. NOTE: This is a depletion type mosfet
U5
L2
Inductance
2u2 H
D4
Color
Red
VSOLAR
Iset = 6800 / Rset = 1A
R7
Resistance
2kΩ
I_ch = (Vset / Rset) * 900 = 900mA
U4
D5
Color
Green
D2
Manufacturer Part Number
SS34

Power Supply Tempate o4wo

Power Supply Tempate o4wo thumbnail
This Power Supply Template project takes input from USB, Battery and Solar and then charges the battery and and has a 3.3V ouput
#template #power #solar

Properties

Power Management

Parametric

Module

Pricing & Availability

Distributor

Qty 1

Arrow

$0.08–$0.18

Digi-Key

$0.24–$0.44

LCSC

$0.27

Mouser

$1.19

Verical

$0.06–$0.13

Controls