12v to 24v booster circuit diagram, four 12v to 24v booster circuit diagrams, detailed explanation

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12v to 24v booster circuit diagram, four 12v to 24v booster circuit diagrams, detailed explanation [Copy link]

12v to 24v booster circuit diagram (I)

[color=rgb(51, 51, 51) !important]

[color=rgb(51, 51, 51) !important]The circuit simulation effect of MC34063 boosting from 12V to 24V.

Design purpose:

[color=rgb(51, 51, 51) !important]Because we don't want to add a 24v output to the switching power supply for several 24v vacuum pumps, the purchase cost will increase a lot. Circuit design simulation:

[color=rgb(51, 51, 51) !important]The circuit simulation effect of MC34063 boosting from 12V to 24V:

Design experience summary:

[color=rgb(51, 51, 51) !important](1) The following circuit can boost the voltage of MC34063 from 12V to 24V, but if the load current rises to 1.2A, the voltage drops by about 2V.

[color=rgb(51, 51, 51) !important](2) For high efficiency, the switch tube should be 1N5819 or 1N5822 high-speed switch tube.

[p=30, 2, (left][color=rgb(51, 51, 51) !important]（3）For NPN, high-frequency tubes should be selected

[color=rgb(51, 51, 51) !important]（4）The minimum value of R6 cannot be less than 0.2 ohms and cannot be omitted. It is used for current detection in the chip

[color=rgb(51, 51, 51) !important]（5）When the requirements are high, adding a filter capacitor to the 6th pin of the chip will have a better effect

[color=rgb(51, 51, 51) !important]（6）Output voltage = 1.25*（r10/r9+1）

[color=rgb(51, 51, 51) !important]（7）The maximum switching frequency of the chip is 100khz, which is adjusted by the capacitor connected to the third pin of the chip. The typical value is 1500pf

[color=rgb(51, 51, 51) !important]（8）Pay attention to the switch ground when wiring. The ground of the feedback signal and the ground of the output voltage should be separated, and finally grounded at a single point. (9) Inductor l2 = 100uH is a typical value. Increasing it can reduce the output voltage. 12V to 24V booster circuit diagram (II) Input voltage range: 10-16V Output voltage: 24V This product is a non-isolated switching power supply that uses pulse width modulation (PWM) to boost the input 12V to 24V output. It has the characteristics of high conversion efficiency and stable performance. It is widely used in the automotive industry, new energy, industry and other fields.

Main features

[color=rgb(51, 51, 51) !important]1. Module nature: non-isolated module

[color=rgb(51, 51, 51) !important]2. Conversion efficiency: up to 90% or more.

[color=rgb(51, 51, 51) !important]3. Load regulation rate: ±2%

[color=rgb(51, 51, 51) !important]4. Voltage regulation rate: ±1%

[color=rgb(51, 51, 51) !important]5. Dynamic response speed: 5%200uS

[p=30, 2,6. Working temperature: industrial grade (-20℃ to +85℃) (If the ambient temperature exceeds 40 degrees, it is necessary to reduce the power usage or strengthen the heat dissipation)

[color=rgb(51, 51, 51) !important]7. The product adopts imported high-power integrated switching voltage regulator module as the core, which can convert the unstable 10-16V DC power supply into a stable 24V DC power output. It has automatic protection functions such as input overvoltage, output overcurrent, overtemperature, output short circuit, etc., and resumes normal operation after the fault is eliminated. It is especially suitable for car audio and LCD TV.

Working Principle

[color=rgb(51, 51, 51) !important]The voltage of DC12V to DC24V can be increased by a series of circuits such as oscillation - voltage increase - rectification - filtering - voltage regulation.

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[color=rgb(51, 51, 51) !important]Circuit diagram

[color=rgb(51, 51, 51) !important]Precautions for using power converter

[color=rgb(51, 51, 51) !important]1. Strictly follow the characters for wiring. The positive and negative polarity of the input voltage must not be reversed, otherwise the power module may be damaged. Reversing the positive and negative polarity of the output voltage may damage the electrical equipment.

[color=rgb(51, 51, 51) !important]2. To ensure that the module can output sufficient voltage and power, please ensure that the input power supply has sufficient voltage and power.

[color=rgb(51, 51, 51) !important]3. If the output reaches the maximum current value, you need to pay attention to the heat dissipation of the power module. It is recommended to reduce the rating by 80% for more reliable use. (It is best to leave a certain current margin for the module, so that the service life is longer, and try not to use the maximum value).

12v to 24v booster circuit diagram (three)

[color=rgb(51, 51, 51) !important]LTC3788-1 is a high-performance, two-phase, dual-channel, synchronous boost converter product controller used to drive all N-channel power MOSFETs. The synchronous rectification it uses improves efficiency, reduces power losses, and reduces heat sinking requirements, allowing the LTC3788-1 to be used in high power boost applications.

[color=rgb(51, 51, 51) !important]

12v to 24v boost converter circuit diagram (IV)

[color=rgb(51, 51, 51) !important]Zhongguang Xinyuan has launched a high-efficiency 95% boost DC/DC controller SC3671. The device is equipped with an external high-efficiency N-channel MOSFET tube and a rectifier Schottky diode. The chip has built-in temperature protection, frequency compensation, overcurrent protection, short-circuit protection, etc. The frequency can be adjusted from 50K to 500K to facilitate customers to design whether it is certified. The chip has its own current limiting function, which effectively and fully protects the MOS tube from overcurrent burning. This can also be used in the field of boost charging. When the battery voltage is fully charged to the designed output voltage, the chip enters the CV constant voltage mode and no longer outputs a large current. Effectively protect the battery from overcharging.

[color=rgb(51, 51, 51) !important]

png[/img]

[color=rgb(51, 51, 51) !important]Circuit diagram

[color=rgb(51, 51, 51) !important]Precautions for using power converter

[color=rgb(51, 51, 51) !important]1. Strictly follow the characters for wiring. The positive and negative polarity of the input voltage must not be reversed, otherwise it may be damaged.Power module, the output voltage positive and negative polarity may be connected in reverse, which may damage the electrical equipment.

[color=rgb(51, 51, 51) !important]2. To ensure that the module can output sufficient voltage and power, please ensure that the input power supply has sufficient voltage and power.

[color=rgb(51, 51, 51) !important]3. If the output reaches the maximum current value, you need to pay attention to the heat dissipation of the power module. It is recommended to reduce the rating by 80% for more reliable use. (It is best to leave a certain current margin for the module, so that the service life is longer, and try not to use the maximum value).

12v to 24v booster circuit diagram (three)

[color=rgb(51, 51, 51) !important]LTC3788-1 is a high-performance, two-phase, dual-channel, synchronous boost converter product controller used to drive all N-channel power MOSFETs. The synchronous rectification it uses improves efficiency, reduces power losses, and reduces heat sinking requirements, allowing the LTC3788-1 to be used in high power boost applications.

[color=rgb(51, 51, 51) !important]

12v to 24v boost converter circuit diagram (IV)

[color=rgb(51, 51, 51) !important]Zhongguang Xinyuan has launched a high-efficiency 95% boost DC/DC controller SC3671. The device is equipped with an external high-efficiency N-channel MOSFET tube and a rectifier Schottky diode. The chip has built-in temperature protection, frequency compensation, overcurrent protection, short-circuit protection, etc. The frequency can be adjusted from 50K to 500K to facilitate customers to design whether it is certified. The chip has its own current limiting function, which effectively and fully protects the MOS tube from overcurrent burning. This can also be used in the field of boost charging. When the battery voltage is fully charged to the designed output voltage, the chip enters the CV constant voltage mode and no longer outputs a large current. Effectively protect the battery from overcharging.

[color=rgb(51, 51, 51) !important]

png[/img]

[color=rgb(51, 51, 51) !important]Circuit diagram

[color=rgb(51, 51, 51) !important]Precautions for using power converter

[color=rgb(51, 51, 51) !important]1. Strictly follow the characters for wiring. The positive and negative polarity of the input voltage must not be reversed, otherwise it may be damaged.Power module, the output voltage positive and negative polarity may be connected in reverse, which may damage the electrical equipment.

[color=rgb(51, 51, 51) !important]2. To ensure that the module can output sufficient voltage and power, please ensure that the input power supply has sufficient voltage and power.

[color=rgb(51, 51, 51) !important]3. If the output reaches the maximum current value, you need to pay attention to the heat dissipation of the power module. It is recommended to reduce the rating by 80% for more reliable use. (It is best to leave a certain current margin for the module, so that the service life is longer, and try not to use the maximum value).

12v to 24v booster circuit diagram (three)

[color=rgb(51, 51, 51) !important]LTC3788-1 is a high-performance, two-phase, dual-channel, synchronous boost converter product controller used to drive all N-channel power MOSFETs. The synchronous rectification it uses improves efficiency, reduces power losses, and reduces heat sinking requirements, allowing the LTC3788-1 to be used in high power boost applications.

[color=rgb(51, 51, 51) !important]

12v to 24v boost converter circuit diagram (IV)

[color=rgb(51, 51, 51) !important]Zhongguang Xinyuan has launched a high-efficiency 95% boost DC/DC controller SC3671. The device is equipped with an external high-efficiency N-channel MOSFET tube and a rectifier Schottky diode. The chip has built-in temperature protection, frequency compensation, overcurrent protection, short-circuit protection, etc. The frequency can be adjusted from 50K to 500K to facilitate customers to design whether it is certified. The chip has its own current limiting function, which effectively and fully protects the MOS tube from overcurrent burning. This can also be used in the field of boost charging. When the battery voltage is fully charged to the designed output voltage, the chip enters the CV constant voltage mode and no longer outputs a large current. Effectively protect the battery from overcharging.

[color=rgb(51, 51, 51) !important]

Zhongguang Xinyuan Company launched the high-efficiency 95% boost DC/DC controller SC3671, which is an external high-efficiency N-channel MOSFET tube and a rectifier Schottky diode. The chip has built-in temperature protection, frequency compensation, overcurrent protection, short-circuit protection, etc. The frequency can be adjusted from 50K to 500K to facilitate customers to design whether it is certified. The chip has its own current limiting, which effectively and fully protects the MOS tube from overcurrent and burning. This can also be used in the boost charging field. When the battery voltage is fully charged to the designed output voltage, the chip enters the CV constant voltage mode and no longer outputs a large current. Effectively protect the battery from overcharging.

[color=rgb(51, 51, 51) !important]

Zhongguang Xinyuan Company launched the high-efficiency 95% boost DC/DC controller SC3671, which is an external high-efficiency N-channel MOSFET tube and a rectifier Schottky diode. The chip has built-in temperature protection, frequency compensation, overcurrent protection, short-circuit protection, etc. The frequency can be adjusted from 50K to 500K to facilitate customers to design whether it is certified. The chip has its own current limiting, which effectively and fully protects the MOS tube from overcurrent and burning. This can also be used in the boost charging field. When the battery voltage is fully charged to the designed output voltage, the chip enters the CV constant voltage mode and no longer outputs a large current. Effectively protect the battery from overcharging.

[color=rgb(51, 51, 51) !important]

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