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Questions tagged [bridge]

A bridge is a circuit in which two circuit branches (usually in parallel) are "bridged" by a third branch connected between them at a point along them.

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Unpredicted voltage drop at the output of a Graetz bridge

I used a Graetz bridge to rectify the voltage after transforming but it ended up making an unusual voltage drop. I don't understand what is happening.
Shalom Kamokoue's user avatar
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Bad AC response from bridge circuit

Followup to this question. Hi. I have the following bridge circuit to simulate a strain gauge. I am conducting an AC sweep of it as another part of my circuit (currently disconnected) that uses the ...
HFOrangefish's user avatar
2 votes
2 answers
132 views

Measuring inductance of motor coil with low Q factor

I have a motor coil that I suspect has an inductance outside the nominal range. I wanted to use a Maxwell-Wein bridge to determine the inductance of the bad coil. The main concern I have is that, as I ...
Numerical Disintegration's user avatar
1 vote
2 answers
94 views

Input/output resistance for an accelerometer/Wheatstone bridge

I am looking at the MS 3028 Piezoresistive Accelerometer. This is the internal schematic of the component, as a Wheatstone bridge, which per my understanding means it's a quarter bridge with other ...
HFOrangefish's user avatar
1 vote
1 answer
71 views

What kind of bridge would reverse DC motor with negative signal

I am not an electrical engineer (aerospace trying to be electrical) and am building a solar tracker. TLDR Goal is to turn on M3 and M4 if signal is positive, and M1 and M2 if signal negative to drive ...
Greg Sorter's user avatar
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3 answers
92 views

I want the DC voltmeter to read 25 V. How do I adjust the value in the circuit?

I want the voltmeter to read 25 V across the capacitor and zener diode. How do I modify this circuit? What additional adjustments do I need to make?
Noting's user avatar
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2 votes
2 answers
90 views

UART-USB Bridge

Take the CP2102N for example. This chip is mainly a UART-USB bridge, but it also has a voltage regulator with it. Now to my question, can I use both bridge and regulator functionalities and hope that ...
Mustafa Tahir's user avatar
1 vote
1 answer
91 views

What kind of bridge circuit is this?

While I was analyzing the old Tektronix' sampling oscilloscope, I found the above circuit that is adjusting the bias voltage of the sampling gate diodes. I understand its purpose, but could not ...
Emm386's user avatar
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1 answer
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Balancing resistance circuit with two voltage sources

Hello, first I'm not sure if the title describes well enough the problem. I have the following circuit. Left side is a part of a voltage regulator. Point A has a fixed potential of 1.2V (a feedback ...
irilinir's user avatar
3 votes
3 answers
574 views

Voltage across an unbalanced resistor bridge

In the above circuit R1 = R2 = R4 = 1 ohm and R3 = (11/10) ohm. I have to find the voltage V. Initially I tried using voltage division in (2 ohm/2.1 ohm) x 10 V = 9.52 V and (2.1 ohm/2 ohm) x 10 V = ...
Adyy's user avatar
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Load Cell Bridge Resistances are ok but I cannot get reading from load cell

I have planar beam load cells that are not functioning. I bought a digitizer which was giving me a reading error which alerted me to an issue. So I unplug the cells from the summation box and I am ...
TheCodeNovice's user avatar
1 vote
1 answer
84 views

Distortion from bridge driver

I am feeding a square wave signal into some NAND gates and then into an ICL7667 MOSFET driver, which in turn drives an LC circuit. The enable is shown for reference, but if always on. Trace 1 (yellow) ...
Vernon's user avatar
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5 votes
2 answers
624 views

Synchronous buck converter using DGD05463 gate driver: High-side gate goes high while low-side is also high --> Shoot-through

I am working on a synchronous buck converter design using the DGD05463 gate driver. The schematic can be seen below (the inductor is 4.7 µH). The input of the driver gets driven by a 400 kHz PWM ...
Fr4nky's user avatar
  • 107
0 votes
2 answers
385 views

How to get R_THEVENIN in Wheatstone bridge?

In the simplification of a Wheatstone bridge with Thevenin's theorem when we calculate the RThevenin as in the schematic. How to explain in another way that the resistor R1 and R3 are in parallel and ...
Mouh Kramo's user avatar
1 vote
3 answers
762 views

What is the purpose of Vs and Vb pins in IR2110

I can't understand the purpose of these 2 pins and why the output wire from both the source of the high MOSFET and the drain of the low MOSFET is connected with pin Vs in the half-bridge circuit.
kamal MKA's user avatar
1 vote
2 answers
595 views

Half-bridge converter - formula for mid-voltage capacitors

I am trying to make a real DCDC half-bridge converter based on this paper and I can't find a formula for calculating those two capacitors C1 and C2. In this paper the author chose C1 and C2 to be 3000 ...
i33SoDA's user avatar
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2 votes
0 answers
178 views

Triboelectric Nanogenerators Full bridge rectifier design

I am working on energy harvesting from Triboelectric Nanogenerators abr. TENG (mechanical to electrical high impedance converters) and wanted to validate my understanding of the following circuit and ...
Shiro's user avatar
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1 answer
159 views

MIPI Bridge 2.5Gbps or Above [closed]

I was looking for some MIPI bridge solution and mostly found MIPI to LVDS Bridge. But the problem with LVDS is that it can't support more than 1.2Gbps. I was looking for some solution which can ...
Sanjeev Kumar's user avatar
1 vote
1 answer
321 views

MAX14830 SPI UART Bridge not transmitting

I am using a MAX14830 SPI-UART bridge. I am trying to initialize the chip and get it to transmit a few bytes out of one of its UART. I can write to the UART's THR register, which gets added to the ...
Harid444's user avatar
0 votes
1 answer
274 views

Why the MAX14830 does not transmit?

I am using a MAX14830 as an I2C-UART bridge. My problem is that it does not trans it after I write data to the transmit (THR) register. My initialization procedure is as follows: Reset the chip (set ...
Cristian M's user avatar
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1 answer
424 views

PCIe - SATA bridge/host controller ICs unavailable to the hobbyist/from low volume suppliers?

I was toying with the idea of a project that would involve adding a SATA device to an existing PCIe lane; probably far too ambitious for me, but before I could confirm that I noticed that there aren't ...
OJFord's user avatar
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2 answers
645 views

Bridge rectifier still putting out ac and dc, why?

I have a bridge rectifier on my snow blower and it still producing 8 V of AC current and 24 V of DC current. Anyone know why it would still be producing both AC and DC?
Jason Stuttgen's user avatar
0 votes
1 answer
478 views

How does this T-network op amp function as a boost filter?

Supposedly this circuit is supposed to be a bass frequency booster. I've been using this article as a reference, although the circuit they analyze is a different layout than mine. I apologize if my ...
Nick Nagy's user avatar
2 votes
1 answer
617 views

Reading EEPROM memory (Winbond W25M02GV) with FT4222H USB bridge

I would like to read an EEPROM Memory (SPI Flash Winbond) using an FTDI USB/SPI bridge (FT4222H). I developed a c++ application that connects to the FTDI and reads data from the memory(and using the ...
medbsl's user avatar
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0 votes
1 answer
49 views

Are those two AC bridges equal. If not, how do they behave differently?

I do not understand if the following circuits are equal or if there's any difference in how they behave. I assumed that it depends on the current, but then I have seen both used with AC and DC, so ...
Julian Crentz's user avatar
0 votes
2 answers
645 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 ...
HA E's user avatar
  • 29
0 votes
0 answers
32 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 ...
Jmk's user avatar
  • 9
0 votes
1 answer
171 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 ...
Jay 's user avatar
  • 309
2 votes
1 answer
146 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\...
shineele's user avatar
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1 vote
1 answer
349 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.
Hector's user avatar
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1 answer
195 views

How a wheatstone bridge is used in operational amplifiers? [closed]

How a wheatstone bridge is used in operational amplifiers?
Shakra Sarwar's user avatar
0 votes
1 answer
75 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 ...
YvonBlais's user avatar
5 votes
4 answers
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 ...
Marandil's user avatar
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0 votes
1 answer
74 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, ...
radioactivedecay's user avatar
0 votes
1 answer
342 views

USB to UART Bridge IC question

I have a few basic questions 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 ...
user avatar
0 votes
1 answer
133 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 ...
RoastDuck's user avatar
0 votes
3 answers
585 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 ...
cbg's user avatar
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1 vote
2 answers
1k 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 ...
juhist's user avatar
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-1 votes
1 answer
252 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 ...
user777304's user avatar
2 votes
2 answers
906 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 ...
Vahe's user avatar
  • 171
0 votes
2 answers
367 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 ...
J. Thornton's user avatar
0 votes
2 answers
906 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(...
Eijomjo's user avatar
2 votes
2 answers
1k views

Unstability with TDA2002 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 ...
user2934303's user avatar
0 votes
1 answer
187 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 ...
Edwin Fairchild's user avatar
1 vote
1 answer
272 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 ...
Florian's user avatar
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0 votes
2 answers
655 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 ...
Ground's user avatar
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0 votes
2 answers
1k views

How can I reduce the RMS output voltage of a bridge rectifier with capacitor?

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 ...
Ali Lightwala's user avatar
13 votes
1 answer
2k 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 (...
NPE's user avatar
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0 votes
5 answers
9k 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 ...
Niroosh Ka's user avatar
2 votes
1 answer
602 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 ...
Edwin Fairchild's user avatar