Questions tagged [bridge]
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111
questions
0
votes
2answers
51 views
Speaker wired in parallel & connecting to stereo amplifier [closed]
I just bought two 2-way in-ceiling speakers (Yamaha NS-IC800). Each of them is rated at 8 ohms. I wired them in parallel (so it's 4 ohms in total):
The amplifier I will be using is Nobsound NS-20G ...
0
votes
0answers
28 views
Current at specific moment in bridge circuit
At the below circuit i need to calculate the current Iab at 300 μs,can i apply voltage division to get the voltage across the appropriate resistors(30KΩ and 120KΩ)and by applying ohms law finding the ...
0
votes
1answer
63 views
bridged emitter follower - how does it work?
I built a rough test version of the above circuit, it is intended as a bridged (i.e 'balanced') unity gain buffer for headphones.
The test circuit seems to work, as in there is sound and it is not ...
3
votes
1answer
31 views
In what situation,we should consider the balanced bridge when we calculate the equivalent capacity?
Question: Find the value of the equivalent capacitance between \$a\$ and \$b\$
Solution:Because of the balanced bridge,so the circuit become
So \$C_{ab}=30 \mu //[(4\mu // 6\mu)+((6\mu // 9\mu))]=5\...
0
votes
1answer
60 views
Drawing Signal Flow Graph from Bridged-T Network
I am confused about where to place R1. Is it a feed-forward or feedback term? Y1 and Y2 are admittances representing the capacitors.
0
votes
1answer
77 views
How a wheatstone bridge is used in operational amplifiers? [closed]
How a wheatstone bridge is used in operational amplifiers?
0
votes
1answer
48 views
bridge rectifier [closed]
I've got a PCB board with a bridge rectifier with PIN (AC + AC -)
I think I made a mistake because almost all bridges are (+ AC AC -)
I try to find any bridges of 3-5A on Aliexpress but I didn't find ...
5
votes
4answers
2k views
Why does my MIC4605 keep blowing up?
I'm trying do design a mini-PCB, replacable half-bridge for motor control applications. The primary application is to use it with my modular inverter/BLDC/BDC controller. The controller design assumes ...
0
votes
1answer
57 views
How do I calculate the capacitance in this circuit?
I can't find any source online to how I can calculate the capacitance in this circuit, the previous questions seem solvable, but any help would be appreciated thank you!!
Here’s a formula I found, ...
0
votes
1answer
62 views
USB to UART Bridge IC question
I have a few basic doubts regarding this USB to UART bridge IC
My questions are just from the hardware perspective. I have little to no software knowledge. So please bear with me and help me ...
0
votes
1answer
141 views
Back EMF of an H Bridge
I am building a H bridge to control a motor in the middle.
As an example, when power is fully removed (24V... 80V in the picture below), there is some back EMF that will drive the 24V input rail.
...
0
votes
1answer
63 views
Load cells in Wheatstone bridge to produce logic signal
The goal is to use 4 units of 50kg load cells in Wheatstone bridge to act as a load detector. It should output a logic 0 or 1 if the load is greater than a threshold value. A MCU will read the states ...
0
votes
3answers
144 views
Can I use this DPDT relay with this circuit? If so, which wires connect to what terminals?
I'm following this tutorial to wire an automatic chicken coop door. The DPDT relay they're using is different to my relay so I'm finding it difficult to understand which wires connect to where. I'm ...
1
vote
1answer
76 views
What is an impedance bridge?
Today, I saw a very old historical piece of lab equipment at the university. It had a large number of dials, although not as large as you would see in an oscilloscope. The size was similar to an ...
-1
votes
1answer
132 views
I don't understand Schottky bridge in op-amp circuit
I was going through a circuit and got confused on a bridge part. I am not very good in circuit analysis. Can anyone guide me the working of attached circuit and what is the role of bridge in such kind ...
0
votes
1answer
167 views
Proper Way to Drive this H bridge
MIC4605-2YM Datasheet
Given the circuit above what is the proper way to drive this H bridge in a manner where I can change the motor direction. the datasheet shows a sample circuit of a full H bridge ...
2
votes
2answers
591 views
Is it possible to connect a peripheral mouse to the USB side of a USB/UART bridge that is controlled by a CP2103 chip already on an FPGA board? [duplicate]
As the title states I want to connect a USB mouse to the USB port on a USB/UART bridge. I want to determine if it is possible to communicate with the mouse using serial commands on the FPGA board then ...
0
votes
2answers
72 views
RTD temperature measurement system resistance question
I am trying to produce a bridge circuit for the following temperature measurement system:
Designed to measure temperatures between 0 C and 100 C with a high accuracy.
When supplied with a 10 V ...
0
votes
2answers
224 views
Impedance of individual component in complex AC circuit
In a AC circuit with just a capacitor or inductor, reactance is the impedance of the component, and in a non-complex RLC circuit you can just find the total impedance with vector addition (Ztot = sqrt(...
1
vote
2answers
381 views
Unstability with tda 2002 bridge configuration
I'm trying, for MONTHS (obviously not everyday, but I spent at least more than 80 hours on this) to do a 15 W audio amplifier with two TDA 2002's in a bridge configuration, following the circuit ...
0
votes
1answer
87 views
Purpose of Buffers in this Circuit
The schematic below is an H-bridge , the high and low mosfets are internal to the two ICs on the right side, their datasheet is here.
What is the purpose of the part on the left, which I googled to be ...
0
votes
1answer
87 views
2 x 2 n-channel mosfets in series: does my circuit has any flaws?
For a hobby project I would like to switch between two power supplys.
The load are two motors which can also be switched on and off separatly. The two motors are BLDC controllers in reality.
I am only ...
0
votes
2answers
362 views
Stereo or bridged mono? (LA4597)
I have a stereo amp (LA4597) and is currently wired in a standard stereo circuit. Recently, I read an updated answer from one of my questions stating that wiring the amp in bridged mode doubles the ...
0
votes
1answer
436 views
How can I reduce the RMS value for a bridge rectifier?
I need to reduce the rectified DC voltage. Is it possible to reduce the RMS value after the bridge rectifier i.e before the capacitor? Practical value (at the capacitor) is 34 DC voltage. I need to ...
14
votes
1answer
1k views
What is a “universal bridge”?
I recently came across this intriguing instrument from the 1970s(?):
It's a "Universal Bridge" made by Wayne Kerr.
It's not a type of device I've come across before and I'm curious what these are (...
0
votes
4answers
2k views
Question regarding ripple factor
For the pictures above, I am confused as how to how they got/derived the formulas for the peak to peak ripple voltage (VrPP) and Vdc. So far, I got the output voltage, which is 14.9 volts. However, I ...
2
votes
1answer
267 views
What is the purpose of these diodes in half bridge
I am checking out a schematic for a full bridge and I noticed these diodes at the gate of every mosfet and I do not understand their purpose there. Can someone elaborate please.
The IC to the left ...
0
votes
1answer
98 views
What are these parts and elements in the schematic doing?
What are these transformers before the bridge? Whats the purpose at all of the schematics before the diode bridge?
0
votes
2answers
718 views
Question about a Wheatstone bridge
Q) Suppose each bridge resistor is capable of dissipating 250mW. Can the bridge be left in the balanced state without exceeding the power-dissipating capacity of the resistors, thereby damaging the ...
1
vote
2answers
598 views
half bridge smps with synchronous rectification basic working principle
I am trying to understand the basic working principles of a Half Bridge SMPS with synchronous rectification. Whilst I understand the workings of a Half Bridge SMPS with diode rectification, I fail to ...
-1
votes
2answers
2k views
Designing a full wave bridge rectifier [closed]
I am making a bridge rectifier using 1n4001 diode and a step down transformer 0-12 my question is:
a) What value of smoothing/filter capacitor should i use?
b) I tried two different capacitor one of ...
2
votes
3answers
1k views
1N5062 is getting hot at only half of its rated current
I have a rectifier bridge with 4x (GP)1N5062 diodes (body made of black plastic tube - like 1N4007). I have seen that they are getting hot, even if the current passing through the rectifier is 0.95 A.
...
-2
votes
1answer
281 views
Does output current track input current, in a bridge rectifier?
In a bridge rectifier, will output current vary in proportion to input current?
Or only voltage to voltage?
0
votes
1answer
111 views
Power consumption of TDA8029 USIM controller for 3V/5V cards
we are using TDA8029 in one of our application board.
Just a summary of the circuit.
TDA8029 in our board connects a USIM card and reads the data and sends on UART.
In our board, 2 supply inputs of ...
-2
votes
1answer
71 views
Do I need to use rectifier when my input source is wind power? [closed]
Do I need to use rectifier in my circuit design when my input source is wind power to dc motor to generate the required voltage and current to charge a cell phone device?
0
votes
2answers
164 views
Bulk Rectification Capacitor Exploded on Tesla Coil Halfbridge
I have been troubleshooting a clicking noise on my Tesla coil driver that causes the system to stop working if my AC line voltage got to high (80V when system is designed for 120V). Suddenly one of ...
2
votes
2answers
965 views
Alternative Wheatstone bridge for thermistor - Interpretation needed
I have a problem understanding the following Wheatstone bridge circuit. It originates from a temperature controller, the voltage V_out is supplied to a PID regulator and hence can be seen as an error ...
1
vote
1answer
2k views
Why can't a Wheatstone bridge measure resistance of very high value?
The answer is from google but I don't get it. Can someone explain in more simple way?
2
votes
2answers
834 views
MCP2200 doesn't work everytime
I have designed a PCB which has LM1117 (for 3.3V), Micro USB connector, MCP2200 usb-to-uart ...
0
votes
1answer
165 views
Additional resistor in feedback loop of bridge audio amplifier
Here is the bridge configuration of the TDA7294 audio amplifier, from its datasheet:
Everything is clear, despite the 22 kOhm resistor connected between output of "top" amp (pin 14) and inverting ...
0
votes
4answers
493 views
Feasibility of reverse polarity feature
If I were to design a circuit for a small appliance that works in DC and I would want to allow it to work with the batteries in reverse polarity could I feasibly use a diode bridge?
Would it make ...
1
vote
2answers
3k views
Difference between push pull and half bridge
I don't understand well the difference between push-pull and half bridge. Someone told me it was totally different but as I understand it, half bridge is a generic name where we have 2 switches and a ...
0
votes
1answer
3k views
Full-wave controlled bridge rectifier and the RMS voltage derivation?
I have a question that reads:
A full-wave controlled bridge rectifier is considered, shown below. Vs = 230V. Load is represented by \$i_o = 10\$ A. Frequency is 50 Hz and the delay angle is 45\$^{\...
0
votes
1answer
86 views
Error in my efficiency calculation for FWB rectifier?
Question reads:
A full-wave bridge rectifier with an RL load is connected to a 120V source. If the load resistance is 10.8 \$\Omega\$ and L is very large, find:
(a) Average load voltage
(...
0
votes
2answers
137 views
Probe testing LFCSP components with a multimeter
If I reflow a LFCSP IC such as an ADV7180 I probably won't be able to see any solder bridges or unsoldered pads because the pads are under the chip. Can I safely test for bridges by using a multimeter ...
1
vote
1answer
796 views
How to design CMOS bridge rectifier?
I designed the bridge rectifier circuit.
I wnat to make a full-wave rectification. so, I made a CMOS circuit.
I refered to other papers. Figure2.
"An ultra-low-voltage self-powered energy harvesting ...
0
votes
1answer
340 views
How is SC16IS740 programmed?
I'm interested in using the SC16IS740 UART-SPI converter to interface with W5500 Ethernet controller which has SPI inputs. Because the datasheet is unclear to me, I'm asking if anybody knows how is ...
-8
votes
2answers
227 views
Bridge rectifier transformer sides reversed [closed]
what will happen at circuit output of a bridge rectifier if the ac supply is connected to secondary and rest of the circuit is connected to primary winding of transformer? Please give me the circuit ...
0
votes
2answers
374 views
Why is there a resistor bridge before the amplifier?
I really fail to understand what the resistor bridge before the amplifier does. Can I just connect my inputs to the - and + ports?
This was taken from the datasheet for INA125, and they use this ...
2
votes
2answers
257 views
Risks of using device body as heat sink for IGBT and Bridge rectifier
I want to know is any risk factor (electrical shocking or ... ) for using one aluminum (4mm) device body which is used as heat-sink for IGBT and Bridge rectifier that are working with 220 volt power?
...
