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موجود در انبار فروشگاه میکرو پردازش10
تومان422,000
10 عدد در انبار
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نقد و بررسی اجمالی
ماژول مبدل DC-DC کاهنده و افزاینده HW-140 دارای نمایشگر با امکان کنترل جریان و ولتاژ خروجی
ماژول ترکیبی HW-140 یک ماژول کاهنده و افزاینده دارای نمایشگر می باشد که امکان نمایش
ولتاژ و جریان خروجی را بر نمایشگر خود دارد .
بر روی این ماژول دکمه هایی با نام in/out و on/off تعبیه شده است که با کمک دکمه روشن/خاموش می توان نمایشگر را
خاموش کرد یا خروجی را خاموش کرد. امکان خاموش کردن خروجی بسیار کاربردی است زیرا
برای غیرفعال کردن منبع تغذیه نیازی به جدا کردن کابل نیست.
برای تعیین اینکه آیا خروجی در حال حاضر روشن یا خاموش است، یک LED با نوشته ON وجود دارد و زمانی که
روشن می شود، خروجی نیز فعال می شود. برای تنظیم ولتاژ و جریان نیز ، ماژول دارای
دو عدد مولتی ترن است که به طور مستقل قابل تنظیم هستند. هنگامی که جریان به
حداکثر مقدار تعیین شده می رسد، یک LED با نام CC روشن می شود. این نشان می دهد که ماژول به حد مجاز جریان رسیده
است. علاوه بر این، ماژول دارای یک شروع نرم است، به این معنی که هنگام روشن شدن،
ولتاژ تا مقدار انتخاب شده افزایش می یابد و مستقیما پر نمی شود. دیود ضد جریان
معکوس داخلی مخصوصاً هنگام شارژ باتری کاربرد دارد. به طوری که اگر ولتاژ باتری از
ولتاژ ماژول بیشتر شود، جریان معکوس نشود. علاوه بر این، این دیود به عنوان حفاظت
از قطبیت معکوس در خروجی نیز عمل می کند.
مشخصات
ولتاژ
ورودی : 5.5 ولت الی 30 ولت
ولتاژ خروجی : 0.5 الی 30 ولت
جریان خروجی : حداکثر 3 آمپر (در صورت استفاده ازهیت سینک )
امکان کنترل ولتاژ و جریان خروجی
دارای نمایشگر LCD جهت نمایش ولتاژ و جریان
حداکثر جریان دهی : 3 آمپر (به همراه هیت سینک)
قابلیت قطع ولتاژ خروجی
قابلیت حفاظت در برابر ولتاژ معکوس
توان خروجی: حداکثر 35 وات
وضوح نمایشگر ولتاژ: 0.01 ولت
وضوح نمایش فعلی: 0.002 آمپر
شروع نرم: دارد
حفاظت از اتصال معکوس ورودی : بله
حفاظت از اتصال کوتاه
ریپل پایین ولتاژ خروجی با وجود مدار فیلتر LC
فرکانس کاری: 180 کیلوهرتز
ابعاد : 48*66*25 میلی متر
کاربرد ها
منابع تغذیه
متغیر و پرتابل
درایور LED
شارژر باتری
Specification
HW-140
LCD Digital Display Step-up Step Down Module Buck Converter Voltage Regulator
5.5-30V
LCD Digital Display Step-up Step Down Module Buck Converter Voltage Regulator
5.5-30V
Input Voltage: 5.5-30V (Input Voltage 5V, can also achieve step-up and
step-down, but the
step-down, but the
measurement of voltage and current is inaccurate; under-voltage protection
below 4.7V)
below 4.7V)
Output voltage: 0.5-30V
Output Current: It can work stably in 3A for a long time and reach 4A under
enhanced heat dissipation.
enhanced heat dissipation.
Output power: natural heat dissipation 35W, enhanced heat dissipation 50W
Voltage display resolution: 0.01V
Current Display Resolution: 0.002A
Soft Start: Yes (high power module with load may fail when starting)
Input Reverse Connection Protection: Yes
Output anti-backfilling: Yes
Short circuit protection: Yes
Working frequency: 180KHZ
Feature
1.
LCD can display input and output voltage, output current and output power.
LCD can display input and output voltage, output current and output power.
2. Anti-backconnection protection of input terminal, backconnection will not
burn up.
burn up.
3. Voltage can be boosted, voltage can be lowered, output voltage 0.5-30V
arbitrary regulation,
arbitrary regulation,
limiting current 0-4A arbitrary regulation.
4. The output terminal is anti-backfilling, and no anti-backfilling diode is
added when charging the battery.
added when charging the battery.
5. Keyboard control output ON/OFF status, and can set the default power on to
ON or OFF.
ON or OFF.
6. Using step-up and step-down chip as main controller, external 60V 75A MOS
transistor as switch,
transistor as switch,
double 60V 5A SS56 Schottky as rectifier, 60V voltage withstand value is better
than the immature scheme
than the immature scheme
of XL6009/LM2577 on the market (many devices have insufficient voltage
withstand value, the voltage
withstand value, the voltage
withstand value of MOS transistor and Schottky diode must be greater than the
input plus input voltage value).
input plus input voltage value).
7. Small output ripple, LC filter; typical value: about 100 mV.
8. Containing radiator, feeding module supports isolation column.
Function description
1.
The module has input/output, on/off two buttons: input/output button to switch
the input voltage and output voltage display, long press to switch the output
current output power display; on/off button control output on or off, long
press set power on or off in default output state.
The module has input/output, on/off two buttons: input/output button to switch
the input voltage and output voltage display, long press to switch the output
current output power display; on/off button control output on or off, long
press set power on or off in default output state.
2.CC current adjustment potentiometer, clockwise rotation can increase the set
current, enter the constant current state, when the load current reaches the
set current, the CC constant current indicator (red) lights up; Accurate CV
voltage adjustment Potentiometer, clockwise rotation can increase the output
voltage. When the indicator output voltage is on, it is the output status
indicator, otherwise it is off.
current, enter the constant current state, when the load current reaches the
set current, the CC constant current indicator (red) lights up; Accurate CV
voltage adjustment Potentiometer, clockwise rotation can increase the output
voltage. When the indicator output voltage is on, it is the output status
indicator, otherwise it is off.
Instructions:
1. Used as an ordinary buck-boost module with overcurrent protection capability
(1) Adjust the CV constant voltage potentiometer so that the output voltage
reaches your desired voltage.
reaches your desired voltage.
(2) Measure the output short-circuit current with a 10A current meter (connect
the two test leads directly to the output end), and adjust the CC constant
current potentiometer to make the output current reach the preset overcurrent
protection value. (For example, if the current value displayed by the
multimeter is 2A, the maximum current will only reach 2A when you use the
module. When the current reaches 2A, the red constant voltage and constant
current LED is on, otherwise the LED is off)
the two test leads directly to the output end), and adjust the CC constant
current potentiometer to make the output current reach the preset overcurrent
protection value. (For example, if the current value displayed by the
multimeter is 2A, the maximum current will only reach 2A when you use the
module. When the current reaches 2A, the red constant voltage and constant
current LED is on, otherwise the LED is off)
Attention: when using in this situation, there will be a voltage drop of 0~0.2V
due to the current sampling resistor at the output. At the same time, the input
and output wires will have a certain linear voltage drop, this is a normal
phenomenon!
due to the current sampling resistor at the output. At the same time, the input
and output wires will have a certain linear voltage drop, this is a normal
phenomenon!
2. Used as a battery charger
Without the constant current function of the module can not be used to charge
the battery, the power of the battery and the charge pressure drop is large,
the charge current is too large, causing damage to the battery, so that the
start of the battery uses constant flow charge, the charge automatically back
to a certain degree of constant voltage charge when you return.
the battery, the power of the battery and the charge pressure drop is large,
the charge current is too large, causing damage to the battery, so that the
start of the battery uses constant flow charge, the charge automatically back
to a certain degree of constant voltage charge when you return.
(1) Determine the float voltage and charging current you need the rechargeable
battery (if the lithium battery parameter is 3.7V/2200mAh, the float voltage is
4.2V and the maximum charging current is 1C, ie 2200mA)
battery (if the lithium battery parameter is 3.7V/2200mAh, the float voltage is
4.2V and the maximum charging current is 1C, ie 2200mA)
(2) Under the no-load condition, the multimeter measures the output voltage and
adjusts the constant voltage potentiometer so that the output voltage reaches
the float voltage. (If the 3.7V lithium battery is charged, set the output
voltage to 4.2V)
adjusts the constant voltage potentiometer so that the output voltage reaches
the float voltage. (If the 3.7V lithium battery is charged, set the output
voltage to 4.2V)
(3) measure the output short-circuit current with a 10A current meter (directly
leads to the two test output terminals), and adjust the constant current
potentiometer, so that the output current reaches the preset charging current
value;
leads to the two test output terminals), and adjust the constant current
potentiometer, so that the output current reaches the preset charging current
value;
(4) connect the battery, charge it.
(Steps 1, 2 and 3 are as follows: input termination power supply, output does
not depend on battery load)
not depend on battery load)
3. Used as LED constant current driver module
(1) Make sure you need to drive the LED working current and the maximum working
voltage;
voltage;
(2) Under no-load conditions, the multimeter measures the output voltage and
adjusts the constant voltage potentiometer, so that the output voltage reaches
the maximum working voltage of the LED.
adjusts the constant voltage potentiometer, so that the output voltage reaches
the maximum working voltage of the LED.
(3) with a multimeter 10A current measurement output short-circuit current,
when adjusting the constant current potentiometer, the output current reaches
the preset LED operating current;
when adjusting the constant current potentiometer, the output current reaches
the preset LED operating current;
(4) LED connected to test machine.
(Steps 1, 2 and 3 are as follows: enter the power and remove the no-load LED.)
Note: this module is more than 3A, the use of 35W, please strengthen the heat!
Not:
1. Module input with output output-short-circuit prohibit-, otherwise the
constant current function will be invalid.
constant current function will be invalid.
2. Please make sure that the power of the power supply is greater than the
power required by the output load!
power required by the output load!
3. While the module to be fully loaded output, the input voltage should be 8V.
When the input voltage is 5V, the output power is about 15W, and the voltage
ammeter will fail. The premise, subject to the maximum output power, such as
module current value 4A, output 17V, the current should not exceed 2A.
When the input voltage is 5V, the output power is about 15W, and the voltage
ammeter will fail. The premise, subject to the maximum output power, such as
module current value 4A, output 17V, the current should not exceed 2A.
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توضیحات کوتاه
ماژول مبدل DC-DC کاهنده و افزاینده HW-140 دارای نمایشگر با امکان کنترل جریان و ولتاژ خروجی
