Power supply calculator

Have you ever been confused about how much wattage your power supply should have when building a DIY PC? This is where a PSU wattage calculator comes in handy. It accurately estimates your components' power consumption and recommends an appropriate power supply to prevent underpowering or wasting electricity.In addition to the previously recommended OuterVision calculator, brands like Be Quiet, FSP, and Seasonic also offer PSU wattage calculators in both Chinese and English.| How to Use a PSU Wattage Calculator |Using the FSP Wattage Calculator as an example, let's calculate power consumption based on the following configuration:CPU: Intel Core i7-13700KCPU Cooler: 1 water block, 3 fansRAM: 16GB DDR4 x 2GPU: Nvidia GeForce RTX 4070 TiStorage: M.2 SSD x 2Fans: 4 additional case fans| Step-by-Step Guide |Step 1: Select Your CPU ModelChoose the brand (e.g., Intel or AMD).Select the socket type of your processor.Pick the exact CPU model and indicate if overclocking is enabled.Step 2: Select Your GPU ModelChoose the GPU brand and model.Specify the number of GPUs installed.Indicate whether overclocking is enabled.Step 3: Choose RAM, Storage, and Cooling SystemRAM: Enter the number of memory sticks and type.Storage: Specify the number of installed storage drives. (M.2 SSDs are often excluded from this calculation.)Cooling: Enter the number of fans and the size of any liquid cooling system.Step 4: Calculate and Review the ResultsAfter inputting all the details, click the Calculate button. Based on this setup, the FSP Wattage Calculator estimates the system's power consumption at 650W and recommends a 750W power supply.| Why Do Different Wattage Calculators Provide Different Results? |When testing the same configuration on different PSU wattage calculators, the recommended wattage may vary:FSP Wattage Calculator: Recommends 750W+ PSUBe Quiet Wattage Calculator: Recommends 1000W PSUMSI Wattage Calculator: Recommends 850W+ PSUOuterVision Wattage Calculator: Recommends 750W+ PSUThis discrepancy is normal because different calculators use slightly different formulas for estimation.How to Choose the Right Wattage?Based on these results, it’s recommended to choose a PSU between 850W and 1000W:If you're on a budget, a minimum of 850W should suffice.If you plan to upgrade your system in the future, opting for a 1000W PSU might be a better investment.

Variable resistor? Yes, a variable resistor (potentiometer) can be used to adjust the current and fine-tune the brightness of the LED.Is it safe to connect an LED without a resistor? No, it is not safe to connect an LED without a resistor as it can draw too much current and burn out.What is the role of LED voltage (Vl)? LED voltage is the voltage drop across the LED when it is operating. It depends on the LED type and color.Can I use this calculator for any LED? Yes, as long as you know the voltage and current specifications of the LED, this calculator will work.How do I know the supply voltage (Vs) of my circuit? The supply voltage is the voltage rating of your power source, such as a battery or power adapter.What is the most common LED current? The most common LED current is around 20mA, but this can vary depending on the LED type.Can I use this calculator for multiple LEDs? For multiple LEDs, the calculation may vary depending on how the LEDs are arranged (in series or parallel).How can I check the resistor’s power rating? Ensure the resistor’s power rating exceeds the power dissipation, which can be calculated as P = I²R.ConclusionThe LED Resistor Calculator is a practical tool for anyone working with LEDs in electronic projects. By entering simple parameters like supply voltage, LED voltage, and current, you can easily calculate the resistor value required to safely operate your LEDs. Always ensure you use the right resistor to avoid damaging the LED and ensure its longevity. Post navigation

Duty Cycle CalculatorA Duty Cycle or Power Cycle is the fraction of one period in which a signal or system is active. Thus Duty cycle can be used to describe the percent time of an active signal in an electrical device such as the power switch in a switching power supply. This Calculator is made to calculate the Duty Cycle of the periodic pulse waveform.Duty Cycle Calculator (Buck Converter)Duty Cycle Calculator (Boost Converter)Duty Cycle Calculator (Buck Boost Converter)Duty Cycle Calculator (Cuk)Duty Cycle Calculator (Dr Grady)A Duty Cycle, also known as a Power Cycle, is the percentage of time during which a signal or system is active. A Step-Down Converter or Buck Converter can produce an output voltage as much as about 80% below the input voltage. This calculator calculates the Duty Cycle of a Step Down Converter.Enter the Output Voltage and the Input Voltage to calculate the Duty Cycle of the Step Down ConverterOutput VoltageInput Voltage A fundamental Buck Converter consists of a controlled switch, a diode, a capacitor, and controlled drive circuitry. The switch cycles ON and OFF at set intervals to control how the input electricity is converted into output. Duty cycle is the total amount of time the switch is activated within a given period. Duty Cycle is commonly expressed as a percentage or a ratio whereas the Output and Input Voltage are expressed in Volts(V).A Duty Cycle, also known as a Power Cycle, is the percentage of time during which a signal or system is active. A Step-Up Converter produces an output voltage of up to 5 times the input voltage. This Calculator calculates the Duty Cycle of a Step-Up Converter.Enter the Output Voltage and the Supply Voltage to calculate the Duty Cycle of the Step-Up ConverterOutput VoltageSupply Voltage The Duty cycle is defined as the ratio of the turn-on time (TON) to the whole cycle length, which includes the turn-off time (TOFF) plus on time for a Step-Up Converter, and it creates a basic connection between an input voltage and an output voltage. Duty Cycle is commonly represented as a percentage or ratio whereas the Output and Supply Voltage is expressed in Volts(V).A Duty Cycle, also known as a Power Cycle, is the percentage of time during which a signal or system is active. The Buck-Boost Converter provides a reversed polarity output and enables the output voltage to be above or below the input voltage.