Discover the workings of the ReLife RL-304P 6 Port USB Mobile Charger. Explore details on PWM IC, LY9531 IC, FP6296 IC, 30P45 IC, and 22LTH9M IC. And the Same 6-Port USB Mobile Charger SUNSHINE SS-304D. So Follow This Page And Find Your Need for Repair Help.
ReLife RL-304P 6-Port USB Mobile Charger
This charger comprises two primary circuits:
Power Circuit: This circuit handles the transformation of AC to DC, voltage direction, and boosting current to supply power to USB ports.
Display Circuit: This circuit estimates voltage and current and outputs this data to the display to provide real-time feedback.
Let's break this down step by step:
Power Circuit Explanation
The control circuit is dependable for changing over AC (rotating current) from the mains into steady DC (direct current) which can be utilized to charge multiple gadgets. Here's how each component works in this circuit:
Bridge Rectifier: KBP307
Purpose: Converts AC input voltage to DC yield voltage.
Operation: The KBP307 bridge rectifier has 4 pins, with two utilized for AC input and two for DC yield. It changes over the fluctuating AC voltage into throbbing DC. This throbbing DC still contains swells, which will be smoothed out by capacitors in the task taking-after.
Capacitors: 400V 47µF
Purpose: SmootSmooththe DC voltage after rectification.
Operation: These capacitors are connected in parallel after the rectifier to filter and smooth out the ripples in the throbbing DC. They offer assistance to give a more stable DC voltage.
PWM IC: LY9531
Purpose: Controls the switching of the power transistor to direct voltage.
Operation: The LY9531 is a Beat Width Modulation (PWM) controller. It works by quickly switching the ttransformer'sessential winding on and off, which permits the voltage to step down from the tall input to a reasonable level for charging. The yield of this PWM section is directed and bolstered into the transformer.
Transformer
Purpose: Steps down high voltage to a lower voltage appropriate for USB charging.
Operation: The transformer works in conjunction with the LY9531 PWM controller. It steps down the tall voltage (after correction) to the lower voltage required to control USB gadgets. The transformer is moreover portion of the confinement handle, which keeps the high-voltage AC side and low-voltage DC side electrically separate.
Feedback and Filter Section
Purpose: Guarantees steady yield voltage by directing feedback.
Operation: After the transformer steps down the voltage, this segment gives input to the PWM IC (LY9531) to alter the exchange and guarantee steady voltage yield. The channel segment smoothens out any remaining voltage ripples.
Boost Section
Purpose: Increments the current yield to guarantee legitimate charging of numerous devices.
Operation: This segment is mindful of boosting the current to guarantee each USB harbour gets sufficient current (regularly up to 2.4A per harbour). It works in couple with the control conveyance circuit, guaranteeing that each gadget gets the recertified current.
Power Distribution: 6-Pin Connector
Purpose: DisDisseminatentrol to the USB ports.
Operation: The 6-pin connector conveys the controlled and boosted control to the show circuit and the 6 USB yield ports. Each harbour is provided with fitting voltage and current for charging.
Diode: SB10100L
Purpose: Gives correction and protection.
Operation: The SB10100L is a Schottky boundary diode that is regularly utilized for correction in exchanging control supplies. It makes a difference in anticipating turnaround current, ensuring the circuit from potential damage.
FP6296 IC
Purpose: Voltage control or current detecting IC.
Operation: The FP6296 is likely an exchanging controller or a current-sensing IC that makes a difference oversee voltage levels, guaranteeing that the yield voltage remains steady notwithstanding of stack on the USB ports.
Circuit Explanation
The show circuit is dependable for observing the voltage and current yield of the charger and showing this data on a user-readable interface. Here’s how the components in this segment work:
TM1622 IC
Purpose: CPU for preparing voltage and current estimations and controlling the display.
Operation: The TM1622 is a microcontroller that forms the input voltage and current information from the control circuit and controls the showing of this information. It has 64 pins and interfacing with different other components to guarantee precise observing and display.
XPD738 IC
Purpose: Analog to computerized converter (ADC) for voltage and current readings.
Operation: This IC changes the analogue signals of voltage and current into computerized signals that the CPU (TM1622) can prepare. With 16 pins, it likely intinterfacesth other detecting components to guarantee real-time checking of each USB port's output.
30P45 IC
Purpose: Voltage control or exchanging IC.
Operation: This 8-pin IC may be dependable for either voltage direction or exchanging capacities, guaranteeing that the yield to the show area is well-regulated and stable.
22LTH9M IC
Purpose: Likely another controller or current detecting IC.
Operation: This 16-pin IC may handle current detecting or voltage direction for the show area, giving criticism to the TM1622 CPU for precise estimation display.
WLX 896 07 IC
Purpose: Conceivable back IC for show or control distribution.
Operation: This 16-pin IC is likely included in overseeing control conveyance or helping with show usefulness. Iseemsem handles auxiliary preparing assignments to bolster the essential CPU.
Working of the Whole Circuit:
AC to DC Transformation: The main control is encouraged into the charger, where the bridge rectifier (KBP307) changes over it into a throbbing DC. The 400V 47µF capacitors smooth out the DC voltage.
PWM and Voltage Direction: The LY9531 PWM controller directs the exchanging of control transistors to step down the voltage utilizing a transformer. The transformer separates and steps down the voltage to the required level.
Feedback Control: The input and channel segments direct the yield voltage by altering the PWM obligation cycle, guaranteeing that the yield remains stable.
Boosting Current: The boost area increments the current yield so that each USB harbour can supply adequate control to charge devices.
Power Conveyance: The directed and boosted DC voltage is dispersed through a 6-pin connector to both the USB yield ports and the show circuit.
Voltage and Current Checking: The show circuit (fueled by the TM1622) gets input from the control circuit, forms the information utilizing the XPD738 and other ICs, and shows real-time voltage and current information.
Output to USB Ports: Each USB harbour gets steady voltage and current based on the dissemination area, guaranteeing secure and productive charging.
Final Thoughts:
All the components in the ReLife RL-304P charger work together in a carefully controlled handle to guarantee secure charging. The control circuit handles the tall voltage, changes over and controls it, whereas the show circuit measures and gives client input. Each segment is basic to the charger's usefulness, guaranteeing both security and effective control conveyance.
FAQs
What is the PWM IC used in the Relife RL-304P 6-Port USB Mobile Charger?
The PWM IC used in the Relife RL-304P 6-Port USB Mobile Charger is the LY9531 IC.
What is an alternative IC for the LY9531 in the Relife RL-304P charger?
Alternatives to the LY9531 IC include the LY9523, LY9525, LY9526, LY9527, and LY9528 ICs.
What is the value of the largest capacitor in the power circuit of the Relife RL-304P?
The largest capacitor on this board is a 400V 47µF capacitor.
Is the circuit of the Relife RL-304P identical to the SUNSHINE SS-304D model?
Yes, the Relife RL-304P and the SUNSHINE SS-304D share a similar circuit design and components.
What does the KBP307 component do in the Relife RL-304P charger?
The KBP307 is a bridge rectifier that converts the AC input into DC output voltage.
What role does the SB10100L diode play in the circuit?
This SB10100L diode is a Schottky barrier diode used for rectification and reverse current protection in the circuit.
Which IC is responsible for processing voltage and current data in the display circuit of the Relife RL-304P?
This TM1622 IC is responsible for processing voltage and current data and controlling the display in the Relife RL-304P charger.
What type of IC is the FP6296, and what is its function?
This FP6296 is likely a voltage regulation or current-sensing IC, ensuring consistent voltage output under various load conditions.
What is the purpose of the transformer in the power circuit of the Relife RL-304P?
The transformer steps down the high AC voltage to a lower DC voltage suitable for USB charging while providing electrical isolation between the high-voltage and low-voltage sections.
What is the PWM IC used in the SUNSHINE SS-304D 6-Port USB Mobile Charger?
The PWM IC used in the SUNSHINE SS-304D 6-Port USB Mobile Charger is the LY9531 IC.