# Questions tagged [output]

A signal or power being generated by one system for consumption by another, or a connection for that purpose.

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### How does increasing the capacitance affect the output voltage for a buck converter and boost converter?

From the formula of charge relating capacitance and voltage, $$Q = CV$$ Capacitance is inversely proportional to voltage. This is how I got the idea that possibly when increasing the capacitance, ...
40 views

### Problems driving inout port of submodule as just an input

So I have two modules, say, module MicroBlaze_inst and module B. Module MicroBlaze_inst has a port, "A" of a Microblaze wrapper and is defined as an inout. In my top module, module B has an ...
110 views

### Is there a way to measure the Phase Shift between the input and the output voltages related by the equation: $V_o = V_i(a+jb).$? [closed]

Say $V_i$ is an input voltage, and the output voltage is given by $V_o = V_i(a+jb).$ Is there a way to measure the Phase Shift between these input and output voltages?
219 views

### Step up converter

I built a circuit of boost converter and my input voltages is 6-9 V. I want to get output at the converter 9-12 V. My problem is that I get over 40 V and I do not know why, in the code do I have to ...
36 views

### Confusion in proportional controller

I was revising proportional controller from here and got confused in following figure which is common in many books also. Since output of controller is proportional(by factor K) to error function but ...
1k views

### Common audio signal voltage range on Line out connector

What is typical audio signal voltage range on Line out connector of consumer electronic devices? (Vmin/Vmax) I need specify Input voltage range to calculate op-amp. ...
38 views

### How do I convert a switch’s single output into a double output per keypress?

I am new to electronics compared to many here I’m sure, but I have some experience with Arduinos and basic circuits and PCBs. If for example I had two mechanical keyboard switches wired up to an ...
213 views

### Amplitude vs Magnitude

Consider the relation between the output and input voltages: $$V_o=\frac{V_i}{2}(j-1)$$ where j is an imaginary number, and $$V_i=5sin(1000t)$$ Now, to find the amplitude of $V_o$, should we look ...
35 views

### Question about the methodology of calculating the output resistance of a BJT amplifier

I am trying to analyze the following BJT amplifier. When it comes to calculating the output resistance, the instructor's solution simply says "It's Rout=Rc", possibly assuming that by ...
31 views

### Different output for recliner power supply safe to use 25V 2.5A to a 29V 2A [duplicate]

My father broke his power supply for his recliner. He's on oxygen 24/7 and I was trying to find out if it was safe to use a slightly different power supply cause I can't find an exact match. The one ...
40 views

### How to calculate laser power on photodiode?

I am completely lost calculating the power of a laser diode and hope, that someone could help me. Here is my setup: OSRAM PL 520 (Type B1 = 50mW) Green Laser Diode OSRAM SFH 203 Photodiode The laser ...
505 views

### Circuit with two voltage dividers in parallel

I have the below circuit. I'm solving for Vx. Vx is just Vout for another voltage divider. So, the top left R is R1 the bottom is R2. Therefore shouldn't Vx be R/3R (Vs) = 1/3 Vs? But it's actually
20 views

### Buck Converter Feedback path

I have this buck converter - TPS54260 I was doing this Control Loop Stability test. For this test, we need to place a small 5-10ohm resistor on the resistor divided feedback path of converter Keysight ...
47 views

### How to opto isloate a pin and still use it as either an output or input at will

I am looking for a clever way to merge the two circuits. I want the freedom to configure the pin as input or output but still have the isolation. Not sure if this can even be done but I am for ...
287 views

### Combine 1 connector for in and output

To simplify the outside design as much as possible (keeping it simple to use and less expensive) I would like to use just one small 2-pin connector both as output to drive an external led and as 5V ...
224 views

### Flash ADC's nonlinear output and response

I don't understand this paragraph about flash ADC. A flash converter can produce a non-linear output which is an additional advantage. The voltage divider network consists of equal-value resistors ...
63 views

### 2 dc-dc converters in series? [closed]

I have 2 of theses converters. I am trying to get 48v. Can I connect the outputs in series to achieve this?
21 views

### How to setup STM32F103C8 encoder triggered output signal

I have a project where I need to read the encoder phase A&B to output the pulse so I can drive a motor, I did some research and saw this picture where it is exactly what I wanted to do: output a ...
28 views

### Determining sample rate / bandwidth for a gyroscope with no ODR setting

My understanding is that a sensor's bandwidth should be half it's ODR (the rate at which you sample data). I am working with the BNO055 sensor and trying to get angular velocity from it, which will be ...
67 views

### Find an amplifier voltage output to match my subwoofer rating [closed]

I have two amplifiers with a subwoofer connected to each one and I was wondering how to check what the output wattage to make sure I don't blow my subs. Since they are two exact same pairs, I'll just ...
581 views

### PCM5102A: analog output level not what I expected?

I cannot achieve a 2.1 Vrms mentioned in their datasheet (pages 4 and 9). I can only output 1.04Vrms from the 1kHz source. Do I measure it wrong or this is what I should expect? Or maybe I get such ...
76 views

### Keyboard USB transform

I want to press a key on my keyboard, for example "a" and a device should take the scan code of the button I pressed and transform it to something else: e.g. "b" or the scan code ...
550 views

### ESD protection diodes on audio inputs / outputs?

I'm building a digital audio device with 1/4" stereo in and outputs that connect to a CS4272 codec. I'm wondering if and where I should place esd protection diodes. Pictured below is the analog part ...
194 views

### Connecting balanced low impedance output with unbalanced high impedance input

I want to send the signal form my audio interface to the guitar pedal effect. I'll use interface's line out balanced output and plan to plug it in to the effect pedal which has high impedance ...
37 views

### LE33CZ LDO 3.3V regulator output issue

I'm trying to understand why with this very easy schematic, I got with my multimeter: 5.2V between the 5V pin of the USB breakout and GND: OK 0V between the GND of the LDO and the GND of the USB ...
57 views

### How is the output voltage adjusted on this schematic?

This is a schematic of TI's reference design for a 65-W USB Type-C high density active clamp flyback with GaN (PMP21639), which can be found from this reference design page. The page claims that the ...
69 views

### Output impedance of a voltage divider with DC bias

I made a circuit simulation of a 200VAC to 0-2VDC for ADC conversion via voltage divider and DC bias with a third resistor connected to a 3.3V supply. What is the output impedance of the divider and ...
60 views

### What will be the output voltage graph of the following circuit if output voltage is considered across the resister?

The circuit is given below. I know that until the Vin reaches the first peak, the voltage across R (output voltage) will be 0 since capacitors draw current to charge. After that, I couldn't figure it ...
1k views

### Can I replace watch quartz with DS3231 32 kHz output?

I'd like to know if it's possible to synchronize classical quartz clock by replacing inbuilt quartz crystal with DS3231's 32 kHz output. I need to synchronize my analog watch with RTC DS3231. Am I ...
53 views

### Designing a circuit that outputs variable voltage

Total noob here, I'm looking to implement a circuit to control a fan that has these specifications: Pin 1 and 3 are DC- Pin 2 is DC+ Voltage should be from 6 to 16 V It needs to operate in 70-second ...
3k views

### STM32F103 PC13 on Output mode not work

I using STM32F103C8, I want to use PC13 in GPIO mode (RTC is active). The register ODR13 changes, but the logical value of the PIN does not change. ...
151 views

### Inverting opamp amplifier

The gain of an ideal opamp is considered infinite and Vout=K(V+ - V-). where V+ is the non-inverting input and V- is the inverting input. The output voltage in the case of an inverting opamp amplifier ...
58 views

### How do I get an output of 24V from a K30319 adapter? [closed]

The K30319 adapter is a 24V adapter made by Canon in Vietnam. I pulled it out of a Canon printer someone chucked in the garbage. The adapter works as far as I can tell. I'd like to use this adapter to ...
85 views

### Purpose of the capacitor which is placed in parallel to collector and emitter of the transistor?

Can someone explain the purpose of the C469 capacitor, which placed in parallel to collector and emitter of the transistor? Edit: Sorry for the mistake, C469 is parallel to CE
112 views

### Purpose of 100 ohm resistor on guitar pedal output buffer

On the schematic for an Ibanez "Tube Screamer" there is a 100 ohm resistor in series with the output emitter follower: The output impedance of this pedal is 1.2K: It looks like RB has a ...
45 views

### Sinking and sourcing switching I/O hardware configuration

This is the Siemens S7 PLC and I'm wondering what's the internal circuit of the I/O looks like? I'm trying to design an I/O circuit that allows me to switch between sinking and sourcing I/O by ...
54 views

### Retrieve pinout of proximity sensor

I need to retrieve the pinout of a proximity sensor. I don't have any specification nor order code. The sensor has 3 wires that are connected to the main board. I made some measurements with a ...
53 views

### MAX608 boost converter stopped working, the OUT pin is shorted to ground

I was working on a little project to convert 3.7V from a lithium ion cell to 5V using a MAX608 boost convertor IC. I put the required components according to page 7 of the data sheet and everything ...
81 views

### How do I calculate the transfer function of this basic terminated RC filter?

I'm reading through an electronics book to teach myself, and I'm in the section about filters. I've been following along so far, but now I'm confused about how the author came to a conclusion in his ...
18 views

### Convert Output Voltage from Delsys Trigno to Acceleration in Matlab

I have the Delsys Trigno Wireless EMG Sensors connected to NI DAQExpress and am reading the signals into MATLAB. I am reading the EMG data from one sensor (Ch 1.1) into AI1 port and the acceleration ...
70 views

### Watt output of radio station

I was wondering how many watts an AM radio station outputs, and if I can calculate the watts on a tuned antenna by this equation: Where Win = the watts input for the antenna, Wout = the watts output ...
76 views

### LM3478/LM5155 configuration on a wide input and output voltage range

In my last question I mentioned the case of obtaining different output voltages from a single switching regulator. I ended up running a successful simulation of such setup in LTSpice using MC34063 and ...
4k views

### Transformer - If the Output V number matches, does it matter that the A numbers are different"

The transformer that came with my Kinkle Fire say "DC Output: 5V1.8A". I want to install some Fastmac Usockets in my house but their specs say "Output: 5VDC 2.4A". Do the different A numbers matter? ...
22 views

### finding output voltage of 2 cascaded sub circuits without KCL

Hi I am trying to cascade sub-circuit 1 and sub-curcuit-2 and find Vout2 with given Vin1. I do not want to just cascade them(connecting Vout1 node to Vin2 node) and write bunch of KCL equations. I ...
66 views

### Why doesn't function generator documentation ever mention the maximum output current?

The output impedance mentioned, but how does this translate to maximum current? What happens if you short circuit the output of a function generator? Let's take the XR-2206 for example. The datasheet ...
84 views

### transistor amplifier

My teacher asked me to design an amplifier circuit using BJT transistors with following properties: (Is=10fA , beta=100, Vce sat =0.2) I can use as many transistors as i want but i try to minimize the ...
41 views

### 555 timer output equation

I've read that that the output voltage available at the Vout pin is approximately equal to the Vcc applied to pin 8 minus 1.7V. This is for an input voltage of +15V. I wanted to know if there is an ...
97 views

### What is causing the erratic sine wave in my Hartley oscillator?

I have made a Hartley oscillator in multisim in order to convert a DC input into an AC output but my output sine wave is not smooth. I don't know what is causing it. Hartley oscillator configuration ...