“TH” series intelligent high-frequency switch power supply modules are specially developed to meet the demands of modern DC system. The charger rectifiers are designed with world leading patent technology “resonant voltage type soft switching power supply technology”. They feature high efficiency and stability, intelligent control, small size and light weight. Standard RS-485 interface, easy to connect with automation system. “Four remotes” functions, intelligent management. The products are widely used in power plant, substations and etc.

Type No. Naming:

Protection function:

1. Output over-voltage protection:

To prevent the disastrous accident caused by output over-voltage, there is over-voltage protection circuit in the module. Once the output voltage is higher than the threshold, the module locks up automatically and fault indication light is on, the faulty module quits work automatically and doesn’t affect the normal operation of the entire system. The threshold is 320V±5V.

2. Output current limiting protect:

The output current cannot increase infinitely. The maximum output current of is limited to 105% of the rated output current.

3. Output short-circuit protection:

When short circuit, the output voltage drops to 0 immediately. Limit the short circuit current under 15% of rated output current. The module will not be damaged under short circuit state for a time, and resumes to work automatically after debugging.

4. Module parallel protection:

There is parallel protection circuit in each module to ensure that when the fault module quits the system, the normal work of other modules and the system won’t be effect.

5. Over-temperature protection:

Over-temperature protection is mainly for protecting large power components. In particular case, when the temperature of the radiator is over the threshold 85℃, the charger module shuts down automatically to protect itself and resume to work after the temperature comes lower.

6. Output over-current protection:

The output current cannot increase infinitely. If overloaded, the output voltage decreases automatically to protect the power components. The over current protection can be resumed automatically.

7. Measuring function:

Measure the output voltage/current and working position.And the user can know the working condition of the module and system through the digit display.

8. Failure warning function:

When failure it alarms and the indicating lamp lights and the same time the failure information shows on the display screen. The user can easily identify the failure and remove timely.

9. Set function:

Output voltage set: Set the output voltage according to monitor’s command

Stepless current limit: current limit threshold is editable within 10% - 100% rated current

State control: Control the module ON/OFF, boost/float charging voltage change.

Communication function:Communicate with host monitor through RS-485, the monitor achieves parameter setup, working parameter gathering and working condition control through communication.

    Standard cartons and plywood pallet for delivery by air or sea

1.Supply Samples for Test:

We can supply samples for customer to make test on our products. So customer can confirm the quality, parameters and technical details of our products before placing official orders.  

2. Bear all cost during warranty:

We usually provide one year warranty for our products. And we will bear all the cost for fixing and delivery of failure products during warranty period. But the product defects must not be created because of user’s wrong operation.

3. Customization:

We are experienced in SMPS rectifier, DC system, EV charging station and on-board power supply design and manufacturing, and we are able to produce customized products according to customer’s detailed requests. OEM is ok for us.

4. Technical Data and On-Site Support:

A full set of device-related technical information will be provided together with our products, such as equipment assembly drawings, installation layout, electrical flow diagram, operation instruction, maintenance manuals and so on. Meanwhile, for some customers who do not quite understand our products, we can send professional technical personnel to offer on-site installation and commissioning guidance, and training on operation and maintenance.

General Introduction:  

As a company which is listed in China stock exchange market, Shijiazhuang Tonhe Electronics Technologies Co., Ltd. (Hereafter referred as Tonhe) is a high technology enterprise and comprehensive power solution provider, which specializes in power electronics, and combines the R&D, manufacturing, marketing and service of high frequency switching mode power supply and related products.

Established in 1998, Tonhe has already developed 100 models of products in 8 series, which involves the field of electric power, EV charging and power, telecommunication, radio television, EPS, marine power, military industry, etc. With over 500 customers for long-term cooperation, our products win good reputation in both domestic and overseas market.

Dedicated in technologies and engineering, Tonhe obtains a number of patents in power conversation filed, headed by the patent “Resonance Voltage Control Type Power Transformation”. Tonhe is the only one in China who realize soft switch during the whole process of power switching based on the patent technology.

R&D capacity:

Tonhe is market-oriented, with over 10% of the annual sales revenue to the R&D department. There are over 10 research projects every year in our R&D department. As the key center of product research and development, our R&D department has over 100 employee members, among of which are 60 experienced designers, who come from China famous university such as China Science and Technology University, Huazhong Science and Technology University, Shangdong University, Yan Shan University, etc. They had already lauched plenty of invention patents, which guarantee continual development and innovations.

Production Capacity:

Under ISO9001 certification, Military Industry Qualification, and ERP System, the production department focus on customer’s demand and already formed scientific and mature production technique and quality management system. The average satisfaction on product quality, timely delivery is over 95%.

There is production facility including SMT, Reflow Soldering, high-low temperature testing machine, Simulation of transport shaking tester, etc. The annual production capacity reach 100,000 sets, and it would reach 150,000 to 200,000 sets with production area of 15,000 m2 in the year of 2013.

1.Are you manufacturer or trader?

   We are manufacturer, and our factory is located in # 12 building, Tianshan Industrial Park, No. 319 Xiangjiang Road, Shijiazhuang, Hebei Province, China.

2.Do you accept OEM or produce the product by using our brand and Logo?

   OEM or producing products by using customer’s brand and Logo are both acceptable for us.

3.Can you supply samples for test?

   Yes, we can supply samples for customer making test.

4. How long for your warranty time?

    We usually provide 1 year warranty. And during warranty, we will bear all the cost for fixing and delivery of failure products during warranty period. But the product defects must not be created because of user’s wrong operation.

5. Can we be your distributor or sole agent in our country or some special areas?

    We are looking for distributors and sole agent all over the world now. And we have good policy for them. But we usually suggest our customers to be our distributor firstly. Because we have strict requirement on sole agent.