How does the booster chip boost the voltage?
Time:2024-04-16
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In electronic devices, the booster chip is an important semiconductor device used to convert the input voltage to a higher output voltage. Booster chips are widely used in various electronic devices and systems, such as mobile phones, wireless sensor networks, power management and other fields. This article will introduce the working principle of booster chip in detail, including DC-DC booster chip and AC-DC booster chip.
1. Working principle of DC-DC (DC-DC) booster chip
Dc-dc Boost chips (Boost chips) are one of the most common types of boost chips. It increases the input voltage to the desired output voltage by using switching power supply technology. The following is the basic working principle of the DC-DC booster chip:
1. Working principle of DC-DC (DC-DC) booster chip
Dc-dc Boost chips (Boost chips) are one of the most common types of boost chips. It increases the input voltage to the desired output voltage by using switching power supply technology. The following is the basic working principle of the DC-DC booster chip:
1.1 Input and output circuits
The DC-DC booster chip is usually composed of an input circuit, an output circuit and a control circuit. The input circuit is connected to the power supply or battery, while the output circuit provides the desired boost output.
1.2 Switching Power Supply technology
The boost chip uses switching power supply technology to realize the boost voltage conversion. This technology uses energy storage elements (such as inductors and capacitors) and switching devices (such as MOSFETs, BJTS, etc.) to control the conversion process of the input voltage.
1.3 Working Cycle
The booster chip performs voltage conversion by periodically turning on and off the switching device. Each work cycle consists of two main phases: the conduction phase and the cut-off phase.
On-on phase: In the on-on phase, a switching device (such as a MOSFET) is turned on, allowing current to be stored through the inductance into the energy storage element.
The DC-DC booster chip is usually composed of an input circuit, an output circuit and a control circuit. The input circuit is connected to the power supply or battery, while the output circuit provides the desired boost output.
1.2 Switching Power Supply technology
The boost chip uses switching power supply technology to realize the boost voltage conversion. This technology uses energy storage elements (such as inductors and capacitors) and switching devices (such as MOSFETs, BJTS, etc.) to control the conversion process of the input voltage.
1.3 Working Cycle
The booster chip performs voltage conversion by periodically turning on and off the switching device. Each work cycle consists of two main phases: the conduction phase and the cut-off phase.
On-on phase: In the on-on phase, a switching device (such as a MOSFET) is turned on, allowing current to be stored through the inductance into the energy storage element.
Cut-off stage: During the cut-off stage, the switching device is turned off, severing the connection between the input voltage and the energy storage element. At this point, the energy storage element releases the stored energy and passes it to the output circuit.
1.4 Energy Transfer
At the end of each working cycle, the energy storage element transmits the stored energy to the output circuit. This energy transfer process can be achieved through the interaction of inductors and capacitors.
Inductance: An inductance is a component that can store electrical energy. When the switching device is turned off, the inductor will block the current change, resulting in a reverse voltage in the inductor. This reverse voltage will help increase the output voltage.
Capacitor: A capacitor is a device that can store electrical charge. When the switching device is turned off, the capacitor will transfer the stored charge through the output circuit, thus providing a voltage boost effect.
1.5 Control Circuit
The control circuit is used to monitor the output voltage and adjust the on-off and cutoff times of the switching devices as needed. By precisely controlling the working period of the switching device, the control circuit can provide the required output voltage stably.
1.4 Energy Transfer
At the end of each working cycle, the energy storage element transmits the stored energy to the output circuit. This energy transfer process can be achieved through the interaction of inductors and capacitors.
Inductance: An inductance is a component that can store electrical energy. When the switching device is turned off, the inductor will block the current change, resulting in a reverse voltage in the inductor. This reverse voltage will help increase the output voltage.
Capacitor: A capacitor is a device that can store electrical charge. When the switching device is turned off, the capacitor will transfer the stored charge through the output circuit, thus providing a voltage boost effect.
1.5 Control Circuit
The control circuit is used to monitor the output voltage and adjust the on-off and cutoff times of the switching devices as needed. By precisely controlling the working period of the switching device, the control circuit can provide the required output voltage stably.
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