
Completed
Posted
I'm looking for an experienced engineer to create a smart charging board for my communication devices powered by Lipo batteries. Key Features: - The board should have a 12VDC 2A output for running the devices, and a 12VDC 5A input for powering the devices/charging the batteries. - When connected to a power source, it should use the power supply for the output. Once the power is disconnected, it should seamlessly switch to using the battery as a backup, maintaining a steady 12VDC output while on battery. - The board needs screw terminals for a manual on/off switch. When the switch is off, the output should be disabled, but the battery should still be able to charge if necessary. - The charging mechanism should charge the battery up to 12VDC and halt further charging until the battery voltage drops to 10VDC or below. - It should also include short-circuit protection for safety. Ideal Skills: - Proficiency in PCB design and power management systems. - Experience with battery charging circuits and Lipo batteries. - Knowledge of implementing safety features in electronic circuits. Please provide examples of similar projects you've completed in your bid.
Project ID: 39200299
25 proposals
Remote project
Active 4 mos ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
25 freelancers are bidding on average $72 USD/hour for this job

$25 USD in 20 days
7.2
7.2

$50 USD in 658 days
6.6
6.6

$25 USD in 40 days
6.2
6.2

$40 USD in 40 days
5.8
5.8

$50 USD in 719 days
5.6
5.6

$35 USD in 40 days
5.5
5.5

$25 USD in 40 days
5.0
5.0

$25 USD in 40 days
4.6
4.6

$28 USD in 40 days
4.9
4.9

$28 USD in 40 days
2.7
2.7

$25 USD in 38 days
0.0
0.0

$50 USD in 7 days
0.0
0.0

$28 USD in 50 days
0.0
0.0

$35 USD in 40 days
0.0
0.0

$35 USD in 5 days
0.0
0.0

$25 USD in 40 days
0.0
0.0

$38 USD in 40 days
0.0
0.0

$25 USD in 40 days
0.0
0.0

Blandon, United States
Payment method verified
Member since Mar 13, 2025
₹1500-12500 INR
$750-1500 USD
$30-250 USD
$750-1500 USD
$250-750 USD
$30-250 USD
€15-40 EUR / hour
$30-250 USD
min €36 EUR / hour
₹750-1250 INR / hour
$1500-3000 USD
$15-25 USD / hour
₹600-1500 INR
£250-750 GBP
₹600-1500 INR
$1500-3000 USD
$250-750 USD
$10-30 USD
₹12500-37500 INR
$30-250 USD