ماژول مبدل DC-DC افزاینده ولتاژ 1200 وات 20 آمپر مدل SZ-BT07CCCV-A

SZ-BT07CCCV DC-DC Boost Converter Module

Applications

1. Increasing DC voltage to power electronic circuits and equipment compatible with the output range.
2. Building an adjustable DC power supply within the module's operating limits.
3. Electronic and laboratory projects requiring a DC voltage higher than the input supply.
4. Selected battery power systems, provided that battery voltage, current limits, and charging requirements are properly addressed.

Technical Specifications

1. Model: SZ-BT07CCCV
2. Converter type: DC-DC boost converter
3. Isolation: Non-isolated
4. Input voltage: 10 to 60V DC
5. Adjustable output voltage: 12 to 83V DC
6. Stated maximum input current: 20A
7. Stated maximum output current: 18A
8. Nominal power rating: 1200W; actual output power depends on input voltage, current, and cooling conditions.
9. PWM controller IC: TL494
10. Stated switching frequency: 150kHz
11. Output voltage adjustment: CV potentiometer marked V-ADJ
12. Current limit adjustment: CC potentiometer marked A-ADJ
13. Input undervoltage threshold adjustment: RV1 potentiometer
14. Input undervoltage protection indicator: UVLO
15. Connection type: Screw terminals

Features

1. Boosts a DC input voltage to a higher DC output voltage within the module's operating range.
2. Adjustable output voltage using the CV or V-ADJ potentiometer.
3. Adjustable output current limit using the CC or A-ADJ potentiometer.
4. Adjustable input undervoltage threshold using the RV1 potentiometer.
5. UVLO indicator for input undervoltage protection status.
6. PWM control using the TL494 controller IC.
7. Non-isolated DC-DC boost conversion design.

Output Voltage Adjustment

1. To adjust the output voltage, power the module without a connected load and connect a suitable multimeter across the output terminals. Turn the CV or V-ADJ potentiometer slowly while monitoring the meter. Because of the output capacitors, the voltage may respond slowly when being adjusted from a higher setting to a lower one.

Current Limit Adjustment

1. Use a suitable test load and correctly rated measuring equipment when setting the current limit. Connect an ammeter in series with the load. Never connect an ammeter directly across the output terminals. The CC or A-ADJ potentiometer is used to adjust the output current limit. Turn the potentiometer slowly and do not force it past its mechanical stop.
2. Test the current limiting behavior with a suitable load. The circuit response at the current limit depends on operating conditions and circuit design. For sensitive applications, test the module within the required current range before use.

Input Undervoltage Protection Adjustment (UVLO)

1. The RV1 potentiometer adjusts the input undervoltage protection threshold. Use an adjustable DC power supply with an appropriate current limit and bring the input voltage to the desired threshold. Slowly adjust RV1 until the UVLO indicator changes state. Monitor the input voltage with a multimeter during adjustment.
2. UVLO does not necessarily disconnect the output completely from the input. When the input voltage falls below the set threshold, boost operation may stop while the input voltage remains present at the output. If complete battery or power supply disconnection is required, use a separate disconnect circuit rated for the system voltage and current.

Important Operating Notes

1. Check the output voltage with a multimeter before connecting a load.
2. Do not set the output voltage above the permitted rating of the connected equipment.
3. Avoid shorting the output or reversing the input or output polarity.
4. Use suitable wires and connectors for high-current operation and provide adequate cooling.
5. Never connect an ammeter directly across the output when adjusting the current limit.
6. For battery applications, select the UVLO threshold according to the battery type and operating requirements. Do not treat this feature as a complete battery management system.
7. The module is non-isolated. Do not design the input and output circuits on the assumption that they are electrically isolated.

Package Contents

Frequently Asked Questions About the SZ-BT07CCCV

1. What are the input and output voltage ranges?

   The input voltage range is 10 to 60V DC, and the adjustable output voltage range is 12 to 83V DC.

2. What do the CV, CC, and RV1 potentiometers do?

   The CV or V-ADJ potentiometer adjusts the output voltage, the CC or A-ADJ potentiometer adjusts the output current limit, and the RV1 potentiometer adjusts the input undervoltage protection threshold. The TL494 IC controls the PWM circuit.

3. Does UVLO completely disconnect the output?

   Not necessarily. When the input voltage falls below the set threshold, boost operation may stop while the input voltage remains present at the output. Use a suitable disconnect circuit if complete disconnection is required.

4. Can an ammeter be connected directly to the output to set the current?

   No. Never connect an ammeter directly across the output. Use a suitable test load and connect the ammeter in series with that load.

5. Can the module always deliver 1200W?

   No. The 1200W value is the nominal power rating stated for the product. Actual output power depends on input voltage, input current, output voltage, circuit limitations, and cooling conditions.