Voltage controlled voltage source amplifier instruction
General Power supplies for laboratory use are mostly only power sources. They are only able to deliver power with one single polarity, i. Common amplifiers deliver voltages with both priorities, but are generally unable to absorb power values in a range comparable to that which they are able to deliver. They therefore mainly work as two-quadrant devices. TOE series of four-quadrant amplifiers is able to work as a power sink as well as a power source with equal values of delivered or absorbed power. The TOE series is thus a voltage amplifier, bipolar voltage and current source, and current sink in one instrument.
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Content:
- Operational transconductance amplifier
- Independent Voltage Source Lt Spice Manual
- Voltage Regulator Types and Working Principles
- SPICE Simulation Part 1
- SPICE - A Brief Tutorial
- Electric Circuit Studio | User Guide
- LTspice: Voltage Controlled Switches
- Voltage Controlled Voltage Source
- Lt Spice Pdf
- SPICE Simulation Part 1
Operational transconductance amplifier
We now extend our circuit parts list by adding the most basic dependent sources. The four dependent sources we now encounter are simple multiples of the controlling voltage or current. However, we will now concentrate on the basic linear dependent sources. For example, if v x happened to be The first letter of the part name for the voltage-controlled dependent voltage source is "E. CIR file describing the circuit. Some examples of the voltage-controlled dependent voltage source PSpice entries follow.
For example, if the controlling branch voltage, v x , equals 6. The first letter of the part name for the voltage-controlled dependent current source is "G. CIR file are shown below.
The current-controlled dependent voltage source as shown above, produces a voltage proportional to the current, i x , in a different branch of the network.
Unlike the two previous examples, we cannot simply designate the controlling branch by its nodes. Since there could be multiple branches carrying very different currents between any pair of nodes, we must explicitly identify the branch of the controlling current.
Eventually, we will be able to do this with any type of element. However, the only reliable method of doing this at present is to use an independent voltage source as an ammeter to report the current of the controlling branch to the dependent source. Usually, this means you must insert a zero-valued independent voltage source in series with the branch containing the controlling current so that the controlling current enters the positive terminal of the independent voltage source.
However, if there happens to be an independent voltage source that monitors the controlling current you can use it. If necessary, use a minus sign to get the right polarity. The first letter of the part name for the current-controlled dependent voltage source is "H. Hab 10 0 V20 HAL 20 99 Vuse The current-controlled dependent current source produces a current proportional to the controlling current, i x , flowing in a different branch. Designating the control scheme is similar to setting up the current-controlled dependent voltage source previously discussed.
We must use a voltage source connected in series with the controlling element so that the controlling current enters the positive terminal of the independent voltage source used as an ammeter. If no voltage source is needed for its voltage, we use a zero-valued voltage source as shown in the figure. The first letter in the part name for this dependent source is "F. CIR files is shown in several examples below.
Fcur 63 48 Vx This can be of great advantage if the circuit is complex, with several dependent sources, or if the circuit cannot be reduced by successive source transformations. The PSpice "dot command" that makes this easy, is ".
TF," where "TF" indicates "transfer function. This is useful in characterizing circuits. In addition to reporting the calculated transfer function ratio and input resistance at the source, PSpice reports the output resistance at the terminal pair of interest.
At this point we will ignore the transfer function ratio and the input resistance at the source. An example of the syntax for the. TF command is shown below. The above command will report the ratio between source Vs and node voltage V 4. The input source can be a voltage or a current source, and the output variable can be a node voltage, branch voltage or a device current. Now we examine a specific example. The 1 Megohm resistor is placed in the circuit because PSpice requires at least two connections to each node.
This resistor is large enough that it will not have an effect on the calculations. Note the use of voltage source Vc which has the purpose of monitoring the control current, i x , used for the current-controlled dependent current source, Fx.
Thevenin Example No. TF V 1,0 Vs. Use of the. TF function allows us to get the answers in a single job. The alternative to using the. TF function would be to run one case with a large resistor across the terminal pair of interest if necessary to get the open circuit voltage; and then run a second case with a zero-valued voltage source across the terminal pair to get the short circuit current.
We prefer the ".

Independent Voltage Source Lt Spice Manual
High frequency high voltage circuit. Edit: I simulated now the class-E amplifier circuit and the switching behaviour works fine. Circuits generally useful for xenon flash applications trigger circuits and circuits to charge flash energy storage capacitors are not included here. Hi Attharuddin this is a high frequency oscillator for HV application for testing insulation etc.
Voltage Regulator Types and Working Principles
Lt Spice Pdf. The step by step procedure for drawing analog Find, read and cite all the research you. After installing LT Spice, run it and check to make sure you have the latest version with respect to the latest version available on the Linear Technology website: www. LTspice has been fun to write. LTspice is an efficient software that is recommended by many Windows PC users. It has a simple and basic user interface, and most importantly, it is free to download. Depress the s key, use the. I am doing this method tens of time per day for programs which doesn't allow to save nicely a picture. LTspice is node unlimited, incredibly easy to learn and can be used to simulate most of the analogue components from Linear Technology as well as discrete and passive components.
SPICE Simulation Part 1

Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. I am trying to add dependent voltage sources in LTSpice, but I need to make a voltage dependent source whose voltage depends on the average of two voltages.
SPICE - A Brief Tutorial
The operational transconductance amplifier OTA is an amplifier whose differential input voltage produces an output current. Thus, it is a voltage controlled current source VCCS. There is usually an additional input for a current to control the amplifier's transconductance. The OTA is similar to a standard operational amplifier in that it has a high impedance differential input stage and that it may be used with negative feedback. The first commercially available integrated circuit units were produced by RCA in before being acquired by General Electric , in the form of the CA archived Intersil page , [2] and they have since been improved. Although most units are constructed with bipolar transistors, field effect transistor units are also produced.
Electric Circuit Studio | User Guide
Voltage mode and current mode are the two regulating conditions that control the output of the supply. Most applications call for a supply to be used as a voltage source. A voltage source provides a constant output voltage as current is drawn from 0 to full rated current of the supply. In these applications, the power supply runs in voltage mode, maintaining a constant output voltage while providing the required current to the load. A voltage source is generally modeled as providing a low output impedance of the supply. Current mode works in a similar fashion, except it limits and regulates the output current of the supply to the desired level. When the supply runs in current mode, the supply provides a constant current into a variety of load voltage conditions including a short circuit. A current source is generally modeled as providing a very high output impedance of the supply.
LTspice: Voltage Controlled Switches
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Voltage Controlled Voltage Source
The symbolic name of this switch is CSW, and its file name is csw. LTspice requires setting of the signal source when simulating. In this article, we will focus on how to set up a independent voltage source for analysis. For the types of analysis, please see the following article. Click Component.
Lt Spice Pdf
We now extend our circuit parts list by adding the most basic dependent sources. The four dependent sources we now encounter are simple multiples of the controlling voltage or current. However, we will now concentrate on the basic linear dependent sources. For example, if v x happened to be The first letter of the part name for the voltage-controlled dependent voltage source is "E. CIR file describing the circuit. Some examples of the voltage-controlled dependent voltage source PSpice entries follow.
SPICE Simulation Part 1
Try our new game: Electric Puzzles. These tools are complemented by the information center containing resources, connector pinouts and interactive book explaining basic electrical theorems, laws and circuits. It is a useful application for all electronics hobbyists, students, or other people with an interest in electronics.
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