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How do I design a voltage divider circuit that has 2 VDC 5 VDC and 8 VDC available with a 10 VDC source?
Without knowing permissible current draw by the divider or its maximum power dissipation the actual resistor values cannot be determined, but the ratios of the resistor values can be determined from the required voltage drops.
The divider will be composed of 4 resistors starting at the 10VDC rail:
- 2VDC drop, ratio = 2V/10V = 0.2
- 3VDC drop, ratio = 3V/10V = 0.3
- 3VDC drop, ratio = 3V/10V = 0.3
- 2VDC drop, ratio = 2V/10V = 0.2
Therefore you will need 2 resistors (R1 & R4) that are 0.2 * the total resistance of the voltage divider and 2 resistors (R2 & R3) that are 0.3 * the total resistance of the voltage divider.
But as stated at the beginning you can get no further without additional requirements being specified.
What else can I help you with?
What is the differences between fixed biased configuration and voltage divider configuration of a common BJT circuit?
In the fixed.bias biasing several key parameters of the amplifier depend on the Beta of the transistor. This parameter has a wide variation (often 5 to 1 or more) for a particular transistor type. Thus, if you need to make a production run of a number of identical amplifiers, this variation in the Beta is unacceptable. In the voltage-divider stabilized method the performance of the amplifier is independent of Beta (or almost). Thus, this design is suitable to be used in the production of a large number of identical devices. In terms of biasing, a voltage divider circuit helps offset the effect of changes in the beta value of the transistor. So it's said to be more 'stable' because heating of the transistor, or swapping transistors entirely (both of which affect beta) will not greatly affect the output of the circuit. As far as the actual output is concerned, I believe both circuits have similar input/output impedance ranges and similar voltage gains. But the fixed biased circuit typically has more current gain.
What does a voltmeter actually measure in a circuit?
A voltmeter measures the electrical potential difference (voltage) between two points in a circuit. Here’s a closer look at what that means: Voltage Measurement Potential Difference: Voltage, or electrical potential difference, represents the work needed to move a unit charge between two points in a circuit. Essentially, it measures how much energy is available to push charges through the circuit. Units: Voltage is measured in volts (V). How It Measures Parallel Connection: A voltmeter is connected in parallel with the component or section of the circuit where you want to measure the voltage. This is crucial because the voltmeter must measure the potential difference across the component, not just the current passing through it. High Resistance: To avoid affecting the circuit, a voltmeter has a very high internal resistance. This high resistance ensures that minimal current flows through the voltmeter, so it doesn’t alter the circuit’s operation or the voltage being measured. Purpose in a Circuit Voltage Drop: It can measure the voltage drop across components like resistors, capacitors, and other elements in the circuit. This helps in understanding how the voltage is distributed throughout the circuit. Power Supply Voltage: It can also measure the voltage of power sources, such as batteries or power supplies, ensuring they are providing the correct voltage. Practical Use Troubleshooting: By measuring voltage at various points, you can troubleshoot electrical circuits, identify faulty components, and ensure proper circuit functionality. Design Verification: Engineers use voltmeters to verify that the voltage levels in a circuit match the design specifications.
Is a zener diode a current limiter?
No. A zener diode is a voltage limiter. Circuit design might create a current limiting response, but the basic control is voltage, not current.
What is diode ripple?
In a switching DC-DC voltage converter, the oscillatory nature of the switching circuit generates a small "ripple" effect in the output voltage which is supposed to be minimized via careful design of the overall circuit. The output current of this type of converter typically flows through a diode into the rest of the system. The voltage measured at the cathode of this diode will exhibit the aforementioned ripple.
How is Neon used for high-voltage indicators?
The kilovolt indicator circuit I saw on the web uses resistors voltage divider with a neon lamp in parallel with each resistor of the low branch. It's not a very orthodox design. If you search electric fence tester on a browser by images you can look at the schematic. But beware, you must not connect this circuit for a long time ! It is better to use high voltage resistors (several kilovolts) with enough power. Be careful with high voltage because you don't need to touch a contact to be in danger, if you' re close enough a spark will jump the air gap. In a home 230v indicator, there is one resistor in serie with the neon bulb, the resistor value is calculated to have the difference between input high voltage and nominal voltage of the neon bulb. The voltage across a single neon bulb depends on the size of the bulb, in fact distance between the electrodes and parameters of the gas. For 2 chinese models I saw 16x6mm: 90volts, 12x5mm: 60volts for instance. You can buy the neon bulb with mounted resistor. It is not necessary to use neon bulb to measure high voltage: You can use a voltage divider and a digital voltmeter, it would be much more precise. If you want to test AC voltage, you can use a high voltage transformer but the wires must be insulated enough to withstand the high voltage.
How do design a high voltage voltmeter?
Use a voltage divider and an standard high input impedance voltmeter connected to the low voltage output tap of the divider. Just check that: a) the voltage divider has enough resistance to minimize loading of the voltage source (The voltage divider resistance should be as high as possible). b) the voltmeter's input impedance is at least 10-20 times larger than the output resistance (impedance) of the divider. If necessary add a high-input impedance amplifier or a transducer between the divider output and the voltmeter. What is high voltage for you?
How do you design a voltage divider bias circuit with certain specifications for Vcc Ic and beta-dc?
When you design a voltage divider bias circuit for a BJT amplifier, you must consider the base current, because that represents a resistance which is in parallel with the lower leg of the divider. To determine the base current, select the desired operating point, and calculate the emitter (collector) current. Divide that by beta-dc, and you have base current. Back calculate the effective base resistance, and build the divider accordingly. Note that in a silicon BJT, the base voltage is about 0.7 V higher (NPN) or lower (PNP) than the emitter. Note also that these calculations only work correctly when the BJT is in linear mode. Note also that beta-dc varies amongst BJT's, even though with identical designs, so your design must consider these variations - you can compensate with an emitter resistor, but variations still have an impact.
Can a lower voltage zener diode be used?
It depends on the design of the circuit.
What is the differences between fixed biased configuration and voltage divider configuration of a common BJT circuit?
In the fixed.bias biasing several key parameters of the amplifier depend on the Beta of the transistor. This parameter has a wide variation (often 5 to 1 or more) for a particular transistor type. Thus, if you need to make a production run of a number of identical amplifiers, this variation in the Beta is unacceptable. In the voltage-divider stabilized method the performance of the amplifier is independent of Beta (or almost). Thus, this design is suitable to be used in the production of a large number of identical devices. In terms of biasing, a voltage divider circuit helps offset the effect of changes in the beta value of the transistor. So it's said to be more 'stable' because heating of the transistor, or swapping transistors entirely (both of which affect beta) will not greatly affect the output of the circuit. As far as the actual output is concerned, I believe both circuits have similar input/output impedance ranges and similar voltage gains. But the fixed biased circuit typically has more current gain.
Is the slew rate of the non-inverting amplifier the same as the voltage follower?
It can be but it might not be, it depends on circuit design.
What does a voltmeter actually measure in a circuit?
A voltmeter measures the electrical potential difference (voltage) between two points in a circuit. Here’s a closer look at what that means: Voltage Measurement Potential Difference: Voltage, or electrical potential difference, represents the work needed to move a unit charge between two points in a circuit. Essentially, it measures how much energy is available to push charges through the circuit. Units: Voltage is measured in volts (V). How It Measures Parallel Connection: A voltmeter is connected in parallel with the component or section of the circuit where you want to measure the voltage. This is crucial because the voltmeter must measure the potential difference across the component, not just the current passing through it. High Resistance: To avoid affecting the circuit, a voltmeter has a very high internal resistance. This high resistance ensures that minimal current flows through the voltmeter, so it doesn’t alter the circuit’s operation or the voltage being measured. Purpose in a Circuit Voltage Drop: It can measure the voltage drop across components like resistors, capacitors, and other elements in the circuit. This helps in understanding how the voltage is distributed throughout the circuit. Power Supply Voltage: It can also measure the voltage of power sources, such as batteries or power supplies, ensuring they are providing the correct voltage. Practical Use Troubleshooting: By measuring voltage at various points, you can troubleshoot electrical circuits, identify faulty components, and ensure proper circuit functionality. Design Verification: Engineers use voltmeters to verify that the voltage levels in a circuit match the design specifications.
What is the 555 oscillator circuit?
LM555 is a timer it can be used for many applications not only oscillators. the timing can be setup from microseconds to hours by the right choice of external passive components. Timing is set precisely by laser controlling a voltage divider as .639. So while the chip is precise the external components are not. but that is used to begin a design.
How do you design a Voltage doubler?
You have to think and know what you want to design. then you go to any electronic store to get the components which go www.runningcodes.blogspot.com for a detailed information and circuit diagram
Is a zener diode a current limiter?
No. A zener diode is a voltage limiter. Circuit design might create a current limiting response, but the basic control is voltage, not current.
What size resistor needed to drop 3 volts dc to 2.5 volts dc?
You will need to take the resistance of the load into account if you are going to design a voltage divider. The resistance of the load can completely change the voltage ratio of a voltage divider if not factored into the calculation. you can measure or read R(load), then R(needed) = 0.8 R(load)
What is the design value of short circuit ration of generator?
short circuit ratio is the ratio of field current to open short circuit voltage n the open circuit current. its value for thermal is less than hydro type.
What does the volt on a capacitor mean?
the voltage number on the capacitor indicates that the capacitor can with stand to that particular voltage across it.generally during design, the value of capacitor will be selected in such a way that this voltage rating should be double than what really we get in the circuit
