
Mini 3G Wireless Cellphone Signal Blocker Jammer
Product Introduction
As a professional manufacturer of 24 volt battery charger in stock, 72v ebike battery charger in stock, 48 volt battery charger, we always adhere to technological innovation and accelerate structural adjustment. The company strives to develop a bright future with the majority of users with first-class service. Our company always adheres to the core values of 'honesty, credibility and practicality' to provide customers with truly valuable professional services. We develop together with our partners and increase our efforts in product development and innovation. Our designers have many years of design experience, and continue to absorb foreign product design concepts, further enhance the professional level and industry competitiveness of our team, and develop a large number of novel and diverse products.
Overview of Onboard charger
The on-board charger of a pure electric vehicle or a plug-in hybrid vehicle is a DC charging device whose voltage is the same as that of the battery matched with the original vehicle. According to the control commands of the battery management system, the charging current and voltage parameters are dynamically adjusted to complete the electric charging. The core component of the car charging process. As a power electronic system, the on-board charger is mainly composed of a power circuit and a control circuit. The power circuit is composed of AC rectifier, transformer and power tube, and the DC/DC converter is an important part of it. The control circuit realizes serial communication with the power management, and controls the power drive circuit to output a certain voltage and current according to requirements. Usually for OEMs, the requirements of on-board chargers are low cost, small size, light weight, long life, high reliability and high safety. The current mainstream on-board chargers are generally 3.3kw and 6.6kw.
The basic principle of car charger
Generally there are the following interfaces:
1) AC input: connect the connector coming in from the AC charging socket
2) DC output: the part that the car charger outputs to the battery
3) Low-voltage control interface: low-voltage interface between the on-board charger and the BMS and external connections

Parameters of onboard charger
Item | Parameters |
Ac Input Wide Voltage Range | AC90v-264v |
AC Input Frequency Range | 40-70HZ |
With APFC Function,Power Factor | ≥0.98 |
Soft Switching Technology,Efficiency | ≥93% |
Protection Level | IP67 |
Operating Temperature | -40℃~ +60℃ |
Storage Temperature | -55℃~ +100℃ |
CAN Communication | Optional |
12v3a Auxiliary Power Supply | Optional |
LED Light Indicator for Charging Process | Standard |
Noise | ≤45dB |
Overall Size | 294x210x111(mm) |
Net Weight | 5.9kg |
Specifications of Onboard charger
Specifications&models | Input Voltage Range | Rated Output Voltage | Max Output Voltage | Max Output Current |
SMHC3-4842A | AC90~264V | 48V | 66V | 42A |
SMHC3-6040A | AC90~264V | 60V | 82.5V | 40A |
SMHC3-7240A | AC90~264V | 72V | 99V | 40A |
SMHC3-8440A | AC90~264V | 84V | 116V | 40A |
SMHC3-9632A | AC90~264V | 96V | 132V | 32A |
SMHC3-12025A | AC90~264V | 120V | 165V | 25A |
SMHC3-14423A | AC180~264V | 144V | 198V | 23A |
SMHC3-31210A | AC90~264V | 312V | 440V | 10A |
Application of Onboard charger
As a power electronic system, the on-board charger is mainly composed of a power circuit and a control circuit. For the power circuit, the DC-DC converter composed of the transformer and the power tube is an important part; for the control circuit, its core is the controller, which is used to realize CAN communication with the BMS, collect and analyze the state of the battery. Judgment, and then adjust the charging parameters of the charger and control the power circuit to charge the lithium battery pack according to the three-stage charging curve.

Our Service and Advantages
1. Good knowledge on different market can meet special requirements.
2. Real manufacturer with our own factory located in Dezhou,Shandong China
3. Strong professional technical team ensure to produce the top quality products.
4. Special cost control system ensure to provide the most favorable price.
5. Rich experience on outdoor equipment.

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Tel: +86-18581533864
address:No.7 Geruide Road, Decheng District, Dezhou City, Shandong Province, China
whatsapp: 86 18581533864
Our company has been operating a physical factory for many years, and the quality of our Mini 3G Wireless Cellphone Signal Blocker Jammer has been recognized. Sincere and hard work, customer satisfaction is the driving force of our work! Customer comfort is the highest service tenet of our team! We always regard talent as capital and consider employees who share our culture and create value continuously as valuable assets of the company.
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