Schematic Symbol for LM317HVT-NOPB: Linear Voltage Regulator IC...

Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
A net identifier used to create connectivity to other Net Portal with the same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
13.8k
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M
1070TR
Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
jharwinbarrozo
700.4k

explain this project.

@copilot explain this project.

9mo

This project appears to be in the early stages of designing an adjustable linear voltage regulator circuit using the LM317HVT-NOPB IC from Texas Instruments. The IC is capable of outputting a voltage from 1.2V to 57V and can handle up to 1.5A.

Here are the components listed in the project:

LM317HVT-NOPB (U): This is the Linear Voltage Regulator IC. It has 3 pins:
- ADJ: This is the adjustment pin which is usually connected to the ground via a resistive divider. This pin governs the output voltage.
- VI: This is the voltage input pin, and it's here you would inject your source voltage.
- VO: This is the voltage output pin, from which you get your regulated output voltage.

Please note that no connections have been defined yet, although the pin names and component designators have been specified.

A typical linear regulator circuit using the LM317 chip includes a couple of resistors and capacitors for setting the output voltage and smoothing out the regulator's output, respectively.

Since no connections are made yet, the next step would be to define the connections and add additional components such as resistors, capacitors, and any other required components based on your desired regulator circuitry and your overall project needs.

Remember that while designing a voltage regulator circuit, the value of resistors and capacitors will depend on the desired output voltage and current requirements as well as the characteristics of your input supply.

For a complete circuit, you will also need to consider proper thermal design, as the LM317 can carry up to 1.5 Amp and might require a heat sink for dissipation. The heat sink design will depend on the voltage differences (input-output) and the load current.

9mo

Someone is typing...

Check that all reset/enable have an external pull-up or pull-down resistors. Rep...

jsuarezch

@copilot Check that all reset/enable have an external pull-up or pull-down resistors. Report action items in an ordered list.

10mo

copilot

I see that your project involves an LM317HVT-NOPB, which is a linear voltage regulator IC. As it turns out, this component doesn't have any reset or enable pins which would require pull-up or pull-down resistors.

However, if you add more components to your project that do have reset or enable lines, remember to include pull-up or pull-down resistors to maintain the stability of these lines. This is often done to prevent unintended state changes due to electrical noise. A common value for these resistors is around 10k Ω, but the specific value can change depending on the rest of your circuit's design.

Here's the action list as per your request:

Verify if any newly added components to the project have reset or enable pins.

For each reset or enable pin, determine whether a pull-up or pull-down resistor is appropriate based on the pin's active state (active HIGH indicates a pull-up resistor; active LOW indicates a pull-down resistor).

Add the required pull-up or pull-down resistors to your schematic. A common starting point for their values is 10k Ω, but you should adjust this value based on your specific design requirements.

Make necessary modifications in the Flux layout accordingly.

Validate the above modifications by rerunning the design checks/rules in Flux.

10mo

Someone is typing...

explain this project.

rdelafg

@copilot explain this project.

7mo

copilot

This project involves the design of a circuit using the LM317HVT-NOPB, which is a linear voltage regulator IC from Texas Instruments. The LM317HVT-NOPB is capable of outputting an adjustable voltage ranging from 1.2V to 57V, with a maximum output current of 1.5A. It comes in a TO-220-3 package, which is common for power devices that require moderate levels of heat dissipation. This regulator is part of the #CommonPartsLibrary, indicating it is a widely used component in various power management applications.

Project Summary:

Component Used: Linear Voltage Regulator IC, LM317HVT-NOPB.

Adjustability: This voltage regulator can output an adjustable voltage in the range of 1.2V to 57V.

Output Current: Up to 1.5A.

Package: TO-220-3, suitable for applications requiring moderate heat dissipation.

License: The project is under the $\text{Creative Commons Attribution 4.0 International License}$ [https://creativecommons.org/licenses/by/4.0/].

Manufacturer: Texas Instruments.

Designator Prefix for IC: U, which is typically used for integrated circuits.

Project Components:

ADJ (Adjust Pin):
- Pins: 1
- Terminal Type: INPUT
- Pin Number: 1
- Pin Type: Unspecified
- Designator Prefix: P

VI (Voltage Input Pin):
- Pins: 1
- Terminal Type: powerIn
- Pin Number: 3
- Pin Type: Unspecified
- Designator Prefix: P

VO (Voltage Output Pin):
- Pins: 1
- Terminal Type: powerOut
- Pin Number: 2
- Pin Type: Unspecified
- Designator Prefix: P

Key Notes:

The project is at an initial stage, with the LM317HVT-NOPB identified as the core component for a variable voltage power supply.

No electrical connections have been made yet in this schematic.

The framing of the project suggests a focus on establishing the proper connections for power input, adjustable voltage setting, and power output, as laid out by the component pins description.

To proceed with the project, electrical connections would need to be defined, including the feedback loop for the ADJ pin to set the desired output voltage, input power connections, and output connections. Additionally, considering the regulator's adjustability feature, external components like resistors will likely be needed to set the output voltage accurately.

7mo

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ADJ

me puedes dar la lista de componentes a utilizar

noevite17

@copilot me puedes dar la lista de componentes a utilizar

copilot

Claro, aquí tienes la lista de componentes utilizados en el proyecto:

LM317HVT-NOPB: Este es un regulador de voltaje lineal ajustable de $1.2\text{V}$ a $57\text{V}$, con una salida de hasta $1.5\text{A}$. Está en un encapsulado TO-220-3.

Además, tienes los conectores para las conexiones, que son:

ADJ (Adjust Pin): Terminal de ajuste.

VI (Input Voltage Pin): Terminal de entrada de voltaje.

VO (Output Voltage Pin): Terminal de salida de voltaje.

Actualmente, no hay otras conexiones eléctricas realizadas en el proyecto. Si necesitas más información o ayuda con el diseño del circuito, por favor házmelo saber.

hi, can you make a code to run this component into simulate

jairod83

@copilot hi, can you make a code to run this component into simulate

5mo

copilot

Sure! To create a simulation setup for the LM317HVT, an adjustable voltage regulator, we'll need to do the following:

Define Input Voltage Source: The LM317HVT requires an input voltage ( $V_{IN}$ ).

Define Adjustment Resistor Network: This network sets the output voltage ( $V_{OUT}$ ).

Define Load Resistance: To simulate current being drawn by a load.

Connect everything together: According to the typical application circuit for the LM317.

Here is the typical way to wire the LM317:

Input Voltage Supply ( $V_{IN}$ ) connected to Pin 3.

Output Voltage ( $V_{OUT}$ ) taken from Pin 2.

Adjust Pin (ADJ) connected to a resistor divider network.

Here’s how you would translate this into a code to simulate using a tool like SPICE:

Define the components and their values.

Connect the components as per the circuit diagram.

Run the simulation to verify the output voltage.

Here's a sample SPICE code snippet:

Spice
* LM317HVT Voltage Regulator Simulation
* Define Input Voltage
VIN VIN 0 DC 12V
* Define Resistor Divider Network (Let's aim for output 5V using R1 and R2)
R1 VOUT ADJ 240
R2 ADJ 0 1680
* Define Load Resistor
RL VOUT 0 1000
* Define the LM317HVT model (assuming it's defined in an external library)
* .include LM317HVT_model.lib
XU1 VIN VOUT ADJ LM317HVT
* Simulation Control
.TRAN 1m 10m
* View Output
.PRINT V(VOUT) V(VIN) I(VIN)
.END

To run this in a simulator like LTspice:

Open LTspice.

Create a new simulation file.

Copy the above code into the file.

Load the appropriate LM317HVT model library if needed.

Run the simulation.

This will simulate the LM317HVT operating with a 12V input and producing around 5V output, with the resistors chosen to set the desired output voltage according to the formula:

V_{OUT} = V_{REF} \left(1 + \frac{R2}{R1}\right) + I_{ADJ} R2

For practical purposes, the adjust pin current (

I_{ADJ}

) is often small and can be ignored.

Would you like more details or help with a specific simulation tool?

5mo

hubertnare

i want the output to be 4v

2mo

copilot

To achieve a 4V output using the LM317HVT, we need to select the appropriate resistor values for the voltage divider network.

The LM317HVT regulates the output voltage according to the following formula:

V_{OUT} = V_{REF} \left(1 + \frac{R2}{R1}\right) + I_{ADJ} \cdot R2

Where:

$V_{REF} \approx 1.25V$ (reference voltage of the LM317)

$I_{ADJ}$ is typically small enough to be negligible for approximate calculations.

Assuming $I_{ADJ}$ is negligible and we fix $R1$ to a common value of 240Ω, we need to solve for $R2$:

4V = 1.25V \left(1 + \frac{R2}{240Ω}\right)

Rearranging and solving for $R2$:

\frac{R2}{240Ω} = \frac{4V}{1.25V} - 1

R2 \approx 528Ω

Using these values, here's an updated SPICE code snippet to simulate the circuit with a 4V output:

Spice
* LM317HVT Voltage Regulator Simulation for 4V Output
* Define Input Voltage
VIN VIN 0 DC 12V
* Define Resistor Divider Network for 4V Output
R1 VOUT ADJ 240
R2 ADJ 0 528
* Define Load Resistor
RL VOUT 0 1000
* Define the LM317HVT model (assuming it's defined in an external library)
* .include LM317HVT_model.lib
XU1 VIN VOUT ADJ LM317HVT
* Simulation Control
.TRAN 1m 10m
* View Output
.PRINT V(VOUT) V(VIN) I(VIN)
.END

R1 is set to 240Ω.

R2 is calculated to be approximately 528Ω for a 4V output.

If you can't find a resistor exactly equal to 528Ω, you might need to use a combination of resistors in series or parallel to get close to this value. Let me know if you need assistance with that or with setting up the simulation!

2mo

how to geneRATE 5V TO 3V USING lm317?

hardware2

how to geneRATE 5V TO 3V USING lm317?

how to geneRATE 5V TO 3V

hardware2

@copilot how to geneRATE 5V TO 3V

copilot

To generate a 3V output from a 5V input, you can use the LM317HVT-NOPB linear voltage regulator. Here is a simple schematic design:

Connect the VI (input voltage terminal) of the LM317HVT-NOPB to your 5V source.

Connect the VO (output voltage terminal) to your load that needs 3V.

Connect the ADJ (adjust terminal) to a voltage divider network to set the output voltage to 3V. The voltage divider consists of two resistors R1 and R2, where R1 is connected between the VO and ADJ terminals and R2 is connected between the ADJ terminal and ground.

The output voltage Vout is given by the formula: Vout = Vref * (1 + R2/R1) + Iadj * R2. Here, Vref is the reference voltage of the LM317HVT-NOPB, which is 1.25V, and Iadj is the adjustment pin current, which is typically very small and can be neglected in most cases.

Rearranging the formula to calculate R2 gives: R2 = R1 * ((Vout/Vref) - 1). If we choose R1 to be 240 Ohm (a standard resistor value), we can substitute the values into the formula to find R2.

R2 = 240 * ((3V/1.25V) - 1) = 336 Ohms. The closest standard resistor value to 336 Ohms is 330 Ohms, so we choose R2 to be 330 Ohms.

Here is the schematic:

  +5V ----|VI LM317HVT-NOPB VO|----+---- R1 240 Ohm ----+---- Load
           |                               |
           | ADJ                           +---- R2 330 Ohm ---- Ground              
           |
  Ground --+

Please note that the LM317HVT-NOPB has a dropout voltage, i.e., the minimum voltage difference between the input and output for the regulator to function properly. The dropout voltage is typically around 1.5V, so ensure your input voltage is always at least 1.5V greater than your desired output voltage.

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	Designator	Ruleset
	Fab Shapes	Override rule for Fab Shapes
	`VALUE`	Override rule for `VALUE`

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adrian95 / LM317HVT-NOPB

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