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will be direct. DC power that becomes another fixed or adjustable voltage. Also known as DC-DC converter. Generally, it refers to the direct current into another direct current, excluding DC-AC-DC.
The chopper circuit originally referred to the use of electricity, for some need, the sine wave.
part"Chop it off".(For example, when the voltage is 50V, the next 50 0V part is cut off with electronic components, and the output voltage is 0.)Later, it was borrowed into the DC-DC switching power supply, mainly in the process of switching power supply voltage regulation, the original straight line power supply, was lined"Chop"It became a pulse piece by piece.
There are 6 basic chopper circuits: buck chopper circuit, boost chopper circuit, buck-boost chopper circuit, CUK chopper circuit, SEPIC chopper circuit, and Zeta chopper circuit. Composite chopper circuit - a combination of basic chopper circuits of different structures.
Multi-phase multiple chopper circuit - a combination of basic chopper circuits of the same structure.
Choppers work in two ways: One is pulse-width modulation.
In this way, TS (period) remains unchanged and changes ton (general, ton is the time when the switch is turned on each time). The second is frequency modulation.
Mode, ton does not change, change TS (easy to interfere).
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The DC chopper circuit is a conversion circuit that converts a fixed DC voltage into a variable DC voltage and controls the electric energy by switching adjustment. It is divided into step-up chopper circuit, step-down chopper circuit, and buck-boost chopper circuit.
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It refers to the use of electricity, for some kind of need, a part of the sine wave"Chop it off".
(For example, when the voltage is 50V, the next 50 0V part is cut off with electronic components, and the output voltage is 0.)Later, it was borrowed into the DC-DC switching power supply, mainly in the process of switching power supply voltage regulation, the original straight line power supply, was lined"Chop"It became a pulse piece by piece.
There are two working modes of chopper: pulse width modulation mode (TS unchanged, change TON) and frequency modulation mode (TON unchanged, change TS).
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Chopper circuit. There are generally three types of control: temporal proportional control, instantaneous value, and average.
Mixed control mode, time ratio and instantaneous value.
The function of the DC chopper circuit is to convert direct current.
Becoming another fixed or adjustable straight mode with current, also known as a DC-DC converter, a DC chopper circuit generally refers to the case of directly turning DC into DC, excluding the case of DC-AC-DC.
There are many types of DC chopper circuits, including 6 basic chopper circuits: buck chopper circuit, boost chopper circuit, buck-boost chopper circuit, CUK chopper circuit, SEPIC chopper circuit, Zeta chopper circuit, the first two are the most basic circuits.
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There are generally three control modes for chopping circuits: time proportional control mode, instantaneous value and average value control mode, and time ratio and instantaneous value hybrid control mode.
The function of the DC chopper circuit is to change the DC into another fixed or adjustable DC current, also known as the DC-DC converter, and the DC chopper circuit generally refers to the situation that directly turns DC into DC, excluding the case of DC-AC-DC.
There are many types of DC chopper circuits, including 6 basic chopper circuits: buck chopper circuit, boost chopper circuit, buck-boost chopper circuit, CUK chopper circuit, SEPIC chopper circuit, Zeta chopper circuit, the first two are the most basic circuits.
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DC chopper circuit.
How it works: direct current.
to another fixed or adjustable direct current.
Direct conversion of DC to DC, excluding DC-AC-DC; There are many types of DC chopper circuits, including 6 basic chopper circuits: buck chopper circuit, boost chopper circuit, buck-boost chopper circuit, CUK chopper circuit, SEPIC chopper circuit, Zeta chopper circuit, the first two are the most basic circuits.
The basic idea of using a chopper to realize DC conversion is to cut the constant DC voltage or current into a series of pulse voltages or currents through the fast posture and disconnection control of the power electronic switching devices, and filter them in a certain way.
, the average value can be obtained on the load.
It can be less or greater than the voltage or current of the power supply.
If you change the operating frequency of the switching device on and off, or change the time ratio of the switching device on and off, you can change the pulse width of this pulse train.
In order to realize the adjustment of the average output voltage and current.
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A chopper circuit is an electronic circuit that converts a direct current signal into a pulsed or pulse-width modulated (PWM) signal. The main function of the chopper circuit is to change the characteristics of the input signal to the desired output signal
1.Adjust the voltage: The chopper circuit can adjust the voltage of the output signal by changing the pulse width or frequency. By adjusting the duty cycle, precise control of the output voltage can be achieved. This can be useful in applications such as motor control and power converters.
2.Regulate the current: The chopper circuit can adjust the current of the output signal by controlling the on-off time of the switching device. By introducing the pulse modulation technique, the foretown can achieve accurate control of the output current, e.g. for speed control of DC motors.
3.Energy-saving control: The switching characteristics of the chopper circuit can be used to achieve efficient energy conversion and control. By turning the DC current on and off intermittently, energy loss can be reduced and the efficiency of the system can be increased.
4.Buck, boost, and invert: Chopper circuits can also be used to enable power conversion, such as buck, boost, and inverter. By controlling the state and frequency of the switching device, the output characteristics of the power supply can be changed to adapt to different power transmission and needs.
In short, the chopper circuit plays an important role in the electronic circuit, which can achieve precise regulation and control of the input signal. It is widely used in many applications, including power electronics, motor control, power conversion, and energy-saving systems. <>
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Originally, a chopper circuit was used to refer to a part of a sine wave that was used in electrical power for some reason"Chop it off".(For example, when the voltage is 50V, the next 50 0V part is cut off with electronic components, and the output voltage is 0.)Later, it was borrowed into the DC-DC switching power supply, mainly in the process of switching power supply voltage regulation, the original straight line power supply, was lined"Chop"It became a pulse piece by piece.
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