Power supplies in our time are divided into single-pole, as well as bipolar. They can be used in circuits with different voltages. By the type of rectifier, the power supplies are divided into pulse and integral modifications. It should also be borne in mind that the rectifiers of the devices vary greatly in parameters. In order to understand this issue in more detail, it is necessary to consider well-known power supply circuits.
Laboratory blocks
The laboratory power supply circuit includes only low-frequency zener diodes. Moreover, according to the characteristics of the model can be different. On average, the output voltage parameter is at the level of 20 V. In turn, the current strength of the device depends on the rectifier. Most often, it is set with a limit frequency of 33 Hz. Also, the laboratory power supply circuit includes amplifiers. If we consider single-pole models, then they differ, as a rule, by a high clock frequency. Moreover, their linearity parameter is quite low. Direct connection of the laboratory type power supply is via a feedthrough capacitor, which is mounted above the rectifier.
TV unit
The power supply circuit of the TV resistors includes only the open type. In this case, amplifiers are most often used operating. If we talk about capacitors, then at the output they are standardly of the passage type. Moreover, at the beginning of the chain they are installed, as a rule, broadband. All this is necessary to increase the linearity of the device.
In this case, the output voltage can be calculated at the level of 15 V. In turn, the clock frequency indicator largely depends on the type of rectifier. Low-impedance models are quite common these days. However, modulation in this case is extremely slow. Many experts use electrode rectifiers to raise the clock frequency parameter.
5V model
The 5 V power supply wiring diagram involves the use of an inductor. Rectifiers in this case are used only low resistance type. To solve problems with reduced linearity, many use operational amplifiers. In this case, the parameter of the clock frequency, as a rule, lies in the region of 31 Hz. In this case, the output voltage at the capacitor depends on the throughput indicator. If we consider unipolar modifications, then they are the most popular. At the same time, bipolar 5 V power supplies are currently only suitable for AC circuits.
10 V devices
The circuit of a computer power supply for 10 V involves the use of coaxial rectifiers. In this case, the parameter of the output voltage on the capacitor depends on the type of amplifier. Inductors are installed on power supplies with a clock frequency of 35 Hz. Also, the circuit of a computer power supply unit includes resistors, and they are used only of an open type. To solve problems with increased linearity, many manufacturers install diode capacitors. Their conductivity on average lies in the region of 3 microns. However, in this situation, it is important to consider the peak voltage parameter. The durability of the rectifier depends on its value.
15 V block circuit
The 15 V computer power supply circuit includes resistors of different polarity. If we consider unipolar modifications, then they are most often used with such a frequency at the level of 13 Hz. In this case, the output voltage parameter can be adjusted using modulators. They are used with both one and two controllers. The most common today are considered to be rotary modifications to two contacts.
Another computer power supply circuit includes fuses that solve problems with increased linearity. In this case they are installed behind the rectifier. In this case, the resistor row can be arranged in sequential or parallel order. Directly fuses for this circuit are suitable only for fusible type.
Models with indication
With an indication system, the power supply (a schematic diagram is shown below) includes rectifiers of only a low-impedance type. At the same time, modulators for the device are suitable for multi-channel. In this case, the diodes are installed, as a rule, at 5 V. Directly, the resistors are selected for the open type power supply. Their bandwidth should not be lower than 3 microns. The clock parameter in this case is located at 4 Hz.
Fuses are used to solve problems with reduced linearity. However, filters in power supplies are also often installed. If we consider models with fuses, then they must be located at the rectifier. At the same time they are used most often fusible type. In turn, the electrode options have a low throughput.
Universal blocks
The universal type power supply circuit involves the use of low-impedance rectifiers. In this case, the modulator is not necessary. In this case, the resistor series for the model is selected open type. However, if we consider unipolar modifications of devices, then there they are most often installed operating rooms. In addition, it should be borne in mind that models must have a mesh type filter . To adjust the clock frequency, as a rule, controllers are used. The unit is directly connected through the contacts of the feed-through capacitor.
Powerful bipolar block diagram
The bipolar type power supply circuit consists of a feed-through capacitor and a low-impedance rectifier. In this case, filters are most often used mesh. In this case, the clock parameter lies in the region of 45 Hz. Directly rectifiers must be located at the first resistor. Feed-through capacitors, in turn, are at the end of the circuit. The conductivity of the device depends on the type of inductor. As a rule, they are used inverting form.
Impulse Modifications
The circuit of a pulse-type power supply is quite complex. In this case, rectifiers are used with different clock frequencies. In this case, the resistors are selected with a high capacity. All this is necessary in order to increase the output voltage parameter. If we consider single-pole modifications, then they are most often used for devices whose power does not exceed 20 V.
In this case, bipolar models are often installed in measuring instruments. Resistors in this case are used open type. Directly capacitors are installed on two contacts. At the same time, the output model is available with a throughput of 3 microns. In turn, the capacitors at the input are installed with a rather high threshold voltage parameter.
Block diagram with bass amplifier
The circuit of the power supply unit of this type of rectifiers involves the use of exclusively cardiode type. In this case, the amplifier is installed at the beginning of the circuit. The conductivity of the device in this situation can change quite quickly. Modulators for power supplies of this type are very diverse. As a rule, unipolar modifications are considered to be the most common. In this case, we can hope for an output power parameter of 20 V. Moreover, the clock frequency of the power supply depends on the type of controller. If we consider single-phase modifications, then the above parameter is located at the level of 45 Hz. In turn, two-phase models are considered less efficient.
Devices on a zener diode TCE
The block circuit on the zener diode of the TCE is quite complex in structure. Such devices are used most often in measuring instruments. A zener diode is installed in the power supplies near the amplifier. To solve problems with linearity, these modifications are ideal. In this case, the conductivity parameter is usually located at the level of 3 microns.
In turn, the indicator of the output voltage depends on the power of the rectifier. To increase the current strength, inductors are standardly used with a primary winding. In this case, fuses are most often installed fusible type. However, grid options are also not uncommon today.
TVR Zener Devices
A block circuit of this type includes rectifiers of low resistance type. On average, the clock frequency parameter of such devices reaches 35 Hz. In this case, the output voltage depends on many factors. In this case, single-pole modifications are often made at 15 V. For household appliances, they are ideal. In turn, bipolar modifications are most often involved in powerful industrial equipment. These zener diodes have a bandwidth of 4 microns.