All Questions
Tagged with buck battery-charging
37
questions
6
votes
1
answer
243
views
How to remove huge startup current spikes in charger circuit? [closed]
I am building solar USB charger model in matlab simulink. It uses solar panel as main power source and body consists of 2 buck converters and a battery. First buck converter has output capacitor(...
- 63
0
votes
0
answers
37
views
I'd like to design a buck converter that charges the battery pack
I'd like to charge the battery pack with buck converter.
Previously, I had experience designing a 30W buck converter. At that time, I calculated the load to connect as follows.
But this time, I want ...
- 119
1
vote
1
answer
85
views
Is it possible to use BQ25629 as both a lipo battery charger and a stable output regulator?
I am a bit confused looking at the datasheet for the TI BQ25629 with regards to the SYS output voltage. Essentially, I have a 3.7 nominal voltage 290 mAh lipo battery that needs to provide around 100 ...
- 217
1
vote
1
answer
35
views
Lithium Ion Battery : Cell Array Configuration (V.batt when converting to ≤ 4[V] )
Question
I am seeking to array 6x 21700 lithium ion battery cells, leaving the option for:
1S • 6P (@ V.batt.nom = 03.7 [V], range: 02.7—04.2 [V])
2S • 3P (@ V.batt.nom = 07.4 [V], range: 05.4—08.4 [...
- 437
1
vote
1
answer
131
views
Buck converter/ NiMH charger circuit review
I'm going to be charging an embedded NiMH battery and I'd like to use a switching charger to minimize heat production. For various reasons, I haven't found an off-the-shelf charger IC that would work ...
- 151
1
vote
0
answers
87
views
Buck converter programable CC with DAC
I am trying to implement a programable CC (Constant current) functionality into the utilized buck converter (AP64501SP-13). The converter is to be used for series cells charging. I need to be able to ...
- 1,679
1
vote
0
answers
131
views
Battery charger circuit confusion - drive and compensation
I'm building something that is going to have Li-Ion batteries so I'm trying to learn how a battery charger actually works. I've been looking over the datasheets for the BQ2000 and the BQ2954. I will ...
- 337
1
vote
2
answers
721
views
12 V, 18 Ah battery for a solar panel
I have a 100 W solar panel. I bought a 12 V, 18 Ah battery with a 30 A PWM solar controller. How can I get this to charge right? The current will be too much for the battery. How can I cut down the ...
0
votes
2
answers
813
views
How can I keep the output voltage of my MPPT buck converter in my PV system constant while connected to the load (battery)? [closed]
I've designed a PV based solar charger controller using the MPPT algorithm to charge my 12 V tubular battery for a DC load.
I need to keep the output voltage constant at 14.5 V to connect a 12 V ...
0
votes
0
answers
115
views
MPPT current limitation
I started to work on an MPPT project a couple of months ago. I have the first HW prototype (synchronous buck converter, current/voltage measurement, STM32 uC) and I am still fiddling with the SW side. ...
- 23
3
votes
1
answer
456
views
High power buck converter LiFePo4 charger
I’m planning to charge my 48V LifePo4 battery bank of some HV solar panels (Max 140V, MPPT @109V). Since I'm quite interested in the construction of power conversion electronics, I thought I would try ...
- 116
0
votes
0
answers
90
views
Is backfeeding BD9C601EFJ buck converter IC a problem?
So I've got a circuit like that [Values are completely random, I didn't set them yet, the question is only about topology]:
The circuit is intended to charge a 2S battery through F3, however when the ...
-3
votes
1
answer
274
views
Paralleling of battery chargers [duplicate]
Can we parallel the bbattery chargers suppose buck controllers.Two buck controllers taking power supply from the same power bus. The output of each controller will charge the batteries connected at ...
2
votes
1
answer
604
views
Why is LM2596 buck converter output current low when used as a mobile charger? [closed]
I have a LM2596 buck converter which is capable of providing 3 A and my input source, which is a transformer, is capable of providing 5 A.
When I use the buck converter to charge my Android phone ...
- 131
0
votes
1
answer
2k
views
How to Increase Solar Charge Controller Output Amps
I am new to solar panel system set ups, and I'm trying to make an off-grid DC-DC solar panel system where in I will be running a bunch of 12v loads which are mainly DC Pumps cause its gonna be ...
