Questions tagged [series]
In the case of an electronic circuit, series refers to components connected in such a way that current must pass through each in a single path.
632
questions
0
votes
1
answer
6k
views
Two 6v batteries in series charged by two separate solar panels
I have two solar panels - first 30 watt 2 amps second 40 watts 2.3 amps, and two 6v deep cycle batteries in series on my RV. My question is: can I simply use two separate charge controllers (max 7 ...
0
votes
1
answer
571
views
Neglecting certain elements in deriving the current of a series RLC circuit
The current at resonance in a series RLC circuit is described in the bottom derivation, along with it being plugged into the formula for finding the voltage across the inductor in the circuitw:
I ...
CommunityBot
- 1
0
votes
0
answers
58
views
Two Series RC circuits in parallel [closed]
I am trying to figure out a way to simplify the circuit shown below. The 500 Ω resistor is actually a relay.
It's all 12 V DC, but at initial conditions C1 is charged to 12 V and C2 is not charged.
Is ...
- 9,205
1
vote
2
answers
164
views
How to wire a capacitor together with a Zigbee fan controller? Do I need the capacitor at all?
I bought this Zigbee ceiling fan controller:
product page
I started to wonder about what the purpose of a capacitor in a ceiling fan is.
This controller claims that it already controls the speed, and ...
- 524
0
votes
2
answers
66
views
Looking for examples of batteries wired in parallel
My kids are learning about electricity. Among their first experiences was connecting D cells to a simple bulb (not LED) and finding out what happens when the 2 batteries were wired in series vs. ...
- 21.3k
0
votes
1
answer
67
views
How to calculate total resistance and identify which resistors are in series?
How to calculate the total resistance and identify which resistors are in series?
I'm really lost with this one. How do I properly read this?
- 9,205
3
votes
2
answers
2k
views
Wiring 2 audio output transfomer secondaries in series or parallel
I want to know if wiring 2 audio output secondaries in series is doable. See problems with this schem? Would parallel be a viable alternative?
CommunityBot
- 1
-4
votes
2
answers
182
views
Which is better - series or parallel rectifier? [closed]
The idea for this question gave me the question Understanding positive and negative rectifiers. Here I want to summarize the ideas behind the two circuit configurations - series and parallel, hoping ...
- 17.9k
1
vote
2
answers
125
views
Understanding positive and negative rectifiers [closed]
How is the first circuit a negative rectifier? My thought is the current flows forward so the diode turned into a short and Vout is postive, and if current is reversed then the diode blocks the flow.
...
- 16.7k
2
votes
1
answer
2k
views
How to calculate voltage drops and power for a current dependent current source in series?
So the question goes as follows:
For the circuit in the figure below determine: a) the loop current, b) voltage drops across all the resistors; c) voltage of the dependent current source, d) power ...
CommunityBot
- 1
0
votes
2
answers
126
views
Why are the two resistors in parallel? They are next to each other, so they should be in series, right? [closed]
Why are the two resistors in parallel? They are next to each other, so they should be in series, right?
- 457k
1
vote
2
answers
64
views
When wiring batteries in both series and parallel to increase the V and Ah, is there a difference between series-parallel and parallel-series?
For example, to create a battery pack of 24 V and 24 Ah from four 12 V/12 Ah batteries what would be the difference in following two wrings.
Figure A: First create 2 series strips of 24 V/12 Ah and ...
- 10k
1
vote
1
answer
288
views
Cascading Isolated Power Supply
I want to implement a few chips for battery management and due to the ADCs of each cell working at bigger voltages each, and each chip (I have to cascade three ICs LTC6803-4) with a maximum voltage ...
CommunityBot
- 1
8
votes
4
answers
2k
views
Can I stack optocouplers in series to make a higher specification part?
Yet again I'm working with the sub-set parts the PCB assembler house has pre-loaded, and not what is commercially available. Like using 3-6 resistors in place of 1, and more relevant to this question; ...
0
votes
3
answers
62
views
If I connect 3 12V batteries in parallel to eachother, then connect them to the load, am I connecting to the Load in parallel or series?
I have 3 12V batteries. I have connected the 12V batteries in parallel to each other. I have 1 positive lead and 1 negative lead coming off to my motor.
Am I connecting to that motor in parallel or in ...
- 149k
0
votes
2
answers
145
views
Controlling 230V LEDs with a single Z-Wave switch
I am trying to control two 100W LED security lights via a motion sensor. The motion sensor is a Philips Hue and runs on the Zigbee network, the LED’s are 230V.
I have purchased a Raspberry Pi and ...
- 176k
0
votes
2
answers
724
views
How to calculate the voltage drop across a load connected in series to the secondary coil of a transformer
I need to know how to calculate the voltage drop across a load connected in series to the secondary coil of a transformer.
I know the resistance (Rs) and inductance (Ls) of the secondary coil (and ...
CommunityBot
- 1
4
votes
5
answers
1k
views
Is there any pitfall to using resistors in series AND parallel for an LED array?
I've seen a lot on LEDs and series vs parallel resistor usage, but found nothing regarding the combination of both, so here goes.
I am working on a watch of sorts, that will work similar to a 7-...
-1
votes
2
answers
216
views
5-level inverter using H-bridge with MOSFETs
I want to make a 5-level inverter using an H-bridge. I have made an H-bridge using MOSFETs and it works. My problem comes when adding the output of these two H-bridges to get 5 voltage levels. I am ...
- 34.1k
1
vote
2
answers
378
views
Component connected in series in a block diagram of a control system
I am given the following block diagram of a control system (I think it also applies to electrical circuits as well with linear components. Correct me if I'm wrong). My textbook says that C(s) is ...
CommunityBot
- 1
0
votes
0
answers
50
views
12V and 24V battery system with charging
I am trying to make an electrical system for an automotive application.
We have two 12V batteries.
The car itself will run at 12V, all ECUs and components will operate here.
The starter motor, however,...
- 71.4k
5
votes
2
answers
4k
views
Connecting battery packs in parallel and series, each with their own BMS
Recently I bought cheap a lot of CASIO DT-9723LI battery packs.
Every pack consists of 2 Sony 6th-gen Li-ion 18650 cells and its own 2s BMS.
Here the question arises: Can I connect this packs ...
CommunityBot
- 1
1
vote
2
answers
454
views
Safety when wiring Li-pos in series and parallel
I want to make sure I am being as safe as possible. I have 2 18650s wired in parallel and 3 of those pairs wired in series with a 3 cell BMS board.
I also have a constant current driver at 700 mA with ...
CommunityBot
- 1
5
votes
4
answers
11k
views
Balancing resistor values for series capacitors
I just wanted to confirm my rough calculations are correct in selecting balancing resistors for two capacitors in series.
Here are the specifications:
two 10,000uF capacitors with 500V rating in ...
- 82.4k
1
vote
1
answer
75
views
What is the simplest way to wire two resistors to be controlled by one switch to have three possible resistances and an off position?
There is very little space in the equipment's cabinet. Just enough space for two power resistors and one switch. Can a switch like this
be wired to for example provide (using two 50Ω resistors) ...
- 8,317
0
votes
0
answers
63
views
Connecting 2 LED strips and 1 driver
I have the following things:
1 5w 3in1 LED strip
1 10w 3in1 LED strip
1 20w 3in1 Driver
The driver has 3 wires in output, 2 in input. The LED strips each have 3 ...
1
vote
2
answers
115
views
Voltage distribution with two batteries [closed]
I have a question regarding a simple circuit of two batteries (9V) in series with a single resistor connected to the outer contacts to prevent a short.
When I'm simulating this circuit, a current also ...
- 16.7k
0
votes
1
answer
65
views
Voltage drops across a series circuit
How come when I hook up two 10M resistors in series with a input voltage of 12 the two resistors only read 3V each? Should it be closer to 6V each?
- 589
0
votes
1
answer
94
views
Selecting Balancing Resistors for HV Capacitor Bank
I am constructing a High Voltage (150 kV DC) capacitor bank. I have elected to connect 10 capacitors in series, with 10 such branches connected in parallel. My next mission is to create balancing ...
- 94.8k
0
votes
0
answers
20
views
Charging 4 parallel banks of 4 in series LifePO4, 16 total batteries. that have been top balanced
16 each LifePO4 batteries. 12.8Vdc 300Ah (Jita), an alleged internal BMS, charge by four SunGold Power SP6548 inverters, configured so two are providing 120VAC for phase 1 and two are providing 120VAC ...
7
votes
2
answers
643
views
Understanding this linear series-pass regulator circuit
Please refer to the schematic extract above which is the positive half of a bipolar voltage regulator in an amplifier. It is a mostly classic design but there is a part I don't understand. The part I'...
- 20.1k
5
votes
2
answers
734
views
What causes the electric field to change over series resistors?
So for example if we have a a wider and a narrower wire of the same length in series, since v1A1=v2A2, in the narrower wire the charges will move with a greater velocity. Since v is proportional to ...
- 94.8k
1
vote
1
answer
139
views
Series regulator with op-amp damaging power transistors
Hello my name is Juliana, I am facing a problem with my project for a 2A linear adjustable power supply
When it is configured with a voltage lower than 65V and current higher than 1.3A, the power ...
- 7,062
2
votes
4
answers
20k
views
Circuit with 10 LEDs with 9V battery
I know that a 9V battery can only power so many LEDs. I need a 9V battery to power 10 of them maybe less or a few more and keep brightness and I am not sure where to go to make it happen, or if I need ...
- 71.4k
1
vote
1
answer
142
views
Battery configuration, simultaneously in parallel and series
Can someone please explain to me what would happen here?
If you take two 12 V 1 Ah batteries and simultaneously connect them in series and parallel with diodes to prevent the shorts. At the ends you'd ...
- 14.7k
2
votes
2
answers
588
views
How can I switch two capacitors from parallel to series?
I am trying to find out how many poles I will need in a switch to switch the circuit from A to B:
I was able to do it with 4 switches. Is there a simpler solution?
- 71.4k
2
votes
5
answers
336
views
Does current prefer to take a series path over a parallel path?
simulate this circuit – Schematic created using CircuitLab
Based on the simulation I have done, current here prefers to take the C1 - R2 path first and once C1 is saturated and cuts off it then ...
- 16.7k
0
votes
1
answer
1k
views
TVS diodes in series
The line to ground voltage is 54 volts, and I would like to know if it is possible to have two bi-directional TVS diodes in series.
I will be using TSPMF4L30A, and the reverse standoff voltage is 30V....
- 34.1k
3
votes
4
answers
5k
views
Batteries connected both in series and in parallel
I am confused.
Some sources say that connecting batteries in series also doubles the amperage (not only voltage) while maintaining the same mAh rating, while connecting them in parallel only increases ...
4
votes
7
answers
610
views
Zener Transistor regulator cascaded into 3-pin IC regulator
So I have a 48 V supply and want 5v output at sub 100 mA. The 78L05 is a super low cost 3-pin voltage regulator, but has a maximum input voltage of 30 V.
I was wondering if it is a cost effective / ...
- 150k
7
votes
1
answer
4k
views
Adding foot control to tig welder
I've got a simple tig welder that uses a switch on the torch to start the welding current and a potentiometer on the front panel to set the amperage. Many welders make use of a foot pedal to start te ...
- 1
0
votes
0
answers
105
views
2 BMS in Parallel connected to 2 batteries in series
This circuit is for charging the two batteries only. The LED board will run on 3.7 volts, but 7-8 volts does not affect the function of the LED board. With this circuit, the LEDs will stay bright ...
6
votes
3
answers
2k
views
Why is it impossible to connect these two doorbells in series or parallel?
I have:
one 220 V AC -> 10 V AC transformer
one push-button switch (at the door)
two bells for two different places of the house; they should ring together when the (single) door push-button ...
- 1,906
1
vote
2
answers
2k
views
Simple switch between 12V and 24V
I hope somebody can help me here.
I am helping my son build a 24V race car with his school. We have a speed controller that runs on 24V built by an electronics engineer who is no longer with us. The ...
- 7,425
2
votes
6
answers
2k
views
Can you connect multiple PCBs in series?
If we have 3 PCBs connected in series (i.e, negative terminal of one is connected to positive terminal of the next PCB), and this is connected to a 36 V DC supply, can we assume the voltage drop ...
- 46.8k
0
votes
1
answer
114
views
Multiple EMF sources in a parallel circuit, semantics
Simple question, really. Need some clarity on parallel vs. series-opposing circuits.
V1 is an automotive gen/alt, assume 80A max output. BAT1 is a lead-acid battery. V1 is charging the battery and ...
- 23.5k
0
votes
0
answers
29
views
LED/Resistor set up for a model display
I am currently making a scaled model display that uses 16 LED in a series and I would like to wire it up to be on one switch, so I need a single power supply to connect them to. I have various ...
1
vote
1
answer
52
views
Using power supplies in series, with one power supply also powering more loads
I have some old solenoids that operate at the unusual voltage of 72VDC. I'm powering them with a 48V and a 24V power supply in series (and controlling them using an Arduino with MOSFETs and the ...
- 166k
4
votes
3
answers
508
views
Its possible to link a group of 1/4 W resistors as an alternative to a resistor with a high power rating (1.25 W)?
I have 10 resistors. Each one is 10 Ω. Is it possible to reach 3.3 Ω with a power rating of 1.25 or 1.5 W?
I tried to get 3.3 Ω by linking in parallel (3 resistors), but the power rating is not high ...
- 166k
1
vote
1
answer
127
views
What is the exact definition of whether resistors are in series or in parallel? [duplicate]
Is there generally any easy way how to say whether resistors are in series or parallel? Sometimes, I have trouble understanding whether resistors are in series or parallel and then I start doing ...
- 21.3k