Electronics Power Supply Modification

The power supply circuit in the battery charger is rated for 120V.

I am aware that the two of the Capacitors and Varistor need to be changed over to 400V capacitors and a suitable varistor. When these three components have been changed the charger operates well as it should, but it is also a little hotter, which can be felt on the outside of the case.

Unfortunately with this modification the battery charger worked for only 2 months. The battery charger still turns on but when the battery is placed on charger, within 5 seconds the charger flashes its lights that there is an error. The same battery charges as it should on another charger.

I would like to know;

1. Which component(s) have failed in the charger after its 2 months of use.

2. What replacement component(s) should be used for the component(s) that have failed.

3. Should the above fail in resolving the chargers short lifespan I would like further solutions to fix the issue.

**I have not been able to source the circuit diagram of the charger

**I have photos inside the battery chargers of the components and PCB.

Here is an image of the components www.schneordesign.com/Avi/Makita/makita_3.jpg

Taidot: elektroniikka

Näytä lisää: modification power supply, what is use case diagram, what is the use case diagram, what is a use case diagram, what is an use case diagram, use of use case diagram, used case diagram, use case diagram of, use case diagram components, use case diagram and its components, need of use case diagram, components of use case diagram, component of use case diagram, supply, short circuit, POWER SUPPLY, charger, power power, power circuit, charger pcb, pcb charger, little modification, battery pcb, pcb components, pcb circuit diagram

Tietoa työnantajasta:
( 7 arvostelua ) Doylestown, Australia

Projektin tunnus: #4272157

Myönnetty käyttäjälle:


Hi, I can help with this.

$125 USD 3 päivässä
(12 Arvostelua)

6 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön


I can help with this.

$300 USD 14 päivässä
(1 arvostelu)

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Lisää

$220 USD 4 päivässä
(9 arvostelua)

I can help you

$30 USD 2 päivässä
(2 arvostelua)

Hi, do you need a professional help?

$100 USD 5 päivässä
(8 arvostelua)

Hi, I can do this. thank you.

$200 USD 5 päivässä
(2 arvostelua)

I have designed various chargers and some are currently available in the market. I can certainly provide a solution for this.

$150 USD 3 päivässä
(0 arvostelua)