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FranMartin
  • Member for 6 years, 9 months
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4 votes
3 answers
4k views

MCP73831: design a lithium battery charging circuit

3 votes
2 answers
1k views

MSP430G2553: measure the voltage of a non-rechargeable 3.6V battery

2 votes
2 answers
3k views

MSP430G2553: convert float to hex

2 votes
1 answer
307 views

Some questions about the RECOM RAC02-05SC AC/DC power supply converter

2 votes
1 answer
2k views

Shunt resistors and PCB layout

2 votes
1 answer
895 views

What exact header is this?

2 votes
1 answer
373 views

Solar LiPo battery charger: revision and improvement of the reverse voltage protection circuit for the battery

1 vote
0 answers
60 views

How to generate and/or improve this power distribution for these 4 subsystems?

1 vote
2 answers
166 views

Improve this schematic to guarantee 12V and 70 mA in the fan

1 vote
1 answer
1k views

DALI schematic: help to analize reception circuit and limited current supply

1 vote
2 answers
3k views

PWM to analog 1-10V converter: help to understand how it works

1 vote
1 answer
421 views

Testing a 24 V, 40 W LED lamp with constant-current LED driver

1 vote
1 answer
287 views

Is the isolation necessary in this circuit?

1 vote
3 answers
1k views

RS485: Where to connect the cable shield in a battery-powered system?

1 vote
1 answer
1k views

16x2 LCD connected to msp430g2553 launchpad by i2c: contrast issue

1 vote
1 answer
3k views

LCD 16x2: circuit to adjust the LCD backlight by a PWM signal

1 vote
0 answers
522 views

Debouncing circuit to count the pulses of a water meter with pulse emitter

0 votes
2 answers
708 views

Sigfox RF module TD1208R: design a 50 ohm microstrip line on a PCB (Proteus ARES)

0 votes
2 answers
351 views

MSP430G2553 and LDO ADP162: Is an external pull-down necessary?

0 votes
1 answer
648 views

Controlling a latching solenoid with the DRV8838: Is this PCB design correct? [closed]

0 votes
1 answer
1k views

AC/DC power supply: help to choose fuse, varistor and/or TVS diode

0 votes
1 answer
1k views

Design a Li-Po battery charger with small solar panel and charger controller with embedded MPPT

0 votes
1 answer
2k views

How to test the output current of a LED driver without a LED lamp?

0 votes
1 answer
1k views

DALI specification: help to understand the physical layer schematic

0 votes
2 answers
473 views

How (or what is the best way) to raise and / or separate an LED from the PCB?

0 votes
1 answer
764 views

How connect a open collector output to led and to GPIO?

0 votes
1 answer
117 views

Reverse voltage protection: what is the function of C8 in this schematic?

0 votes
0 answers
190 views

What is the ASBBA-001 battery connector (GoPro Fusion 360 camera)?

0 votes
1 answer
188 views

Add inrush current limiter to board for USB compliance