Kingtronics Blog

A.Power supply circuits

Stable DC power supplies are divided into intermittent control types (switching regulator) and continuous control types (Dropper).
Recent trends have shown an overwhelming growth in switching regulators, and so we talk mainly about switching regulators below.
The capacitors used in switching regulators are selected depending on the circuit. A forward switching regulator is shown as an example in Flg.6-1. Another type is a fly back regulator.



(1) Aluminum electrolytic capacitors for input (primary) smoothing circuits The Aluminum electrolytic capacitors for input smoothing circuits used on commercial voltages (100 V.AC, 200 V.AC) and commercial frequencies (60 Hz, 50 Hz) must have a high withstand voltage and a ripple current resistance complying with twice the commercial frequency (normally full-wave current).
These capacitors have large volumes (ground contact areas) compared to other components they are assembled with ,and so the demand for more compact capacitors, as well as power supplies, is strong. Another problem is the need for longer aluminum electrolytic capacitor lives, but products guaranteed for 5000 hours at 105℃ have recently been developed, thus realizing freedom from maintenance for 10 years.

(2) Aluminum electrolytic capacitors for output smoothing circuits The rated voltage of aluminum electrolytic capacitors used for smoothing at switching frequencies (20 k to 500 kHz) is determined by the output voltage, and they must have low impedance (low ESR) at switching frequencies. Therefore aluminum electrolytic capacitors for output smoothing are designed to have low impedance at 20 k to 500 kHz, and the recent development of a low resistance electrolyte using new materials has resulted in products with 1/3 to 1/4 the impedance of conventional products with the same volume. These low impedance products also have an extremely stable life

B. ECU for automotive

The electronization of in-vehicle control is accelerating these days. ECU (electrical control unit) which carries out in-vehicle control is asked for high reliance, a miniaturization, and high quality, and many aluminum electrolytic capacitors are used for it. A typical application example is shown below. 

(1) Power train ECU (Engine、 HV-Inverter etc.)


(2) Motor control ECU（Power steering, a blower / radiator fan motor, an electric pump etc.）


(3) LED lump


(4) Airbag


In automotive application, there are mainly an object for smoothing of input and output of the power supply of ECU and an object for energy reserve.
The rated voltage of 25 to 50 V.DC is mainly used.Not only current aluminum capacitor, aluminum capacitor with conductive polymer and
electrolyte is increasing due to improve quality, performance, with standing-voltage.It contributes to the small size of ECU, and a weight saving these days.

Kingtronics started the business of the production of trimmer potentiometer, we have manufactured with mature and precise techniques for over 30 years.

In the report from QYR search, the market demand of trimpot will increase incredibly by 2026.

And Kingtronics is listed as top 4 manufacturer of trimpot in the report.

Why not turning to us for a try of qualified product with ISO and RoHS certification.

Take a look at below cross reference, and let us help you with your demand!

Check here: https://weeklywall.com/trimmer-potentiometer-market-by-size-share-development-2026-maxim-integrated-nidec-copal-electronics-kingtronics/

Key companies operating in the global Trimmer Potentiometer market

Bourns,
Maxim Integrated,
Nidec Copal Electronics,
Kingtronics,

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Aluminum Electrolytic Capacitors – Snap-in Type

#1 Switch to LED Bulbs 
Replacing regular incandescent lightbulbs with LED bulbs, which last longer, save much more energy efficient, and can provide a cleaner, more natural looking light. 

#2 Turn off the light
This is the most common way to save electricity. Leaving electronics on standby means that electricity is still being used so they can be turned on at a moment’s notice. eg. When you leave a room, make a habit of turning off the lights, every single time.

#3 Spend less time in the shower 
Especially true if you have an electric shower and a water meter. Take showers instead of baths. Baths use a lot more water than showers. Spending even a minute less in the shower every day can make a real difference to your annual consumption.

#4 Wash clothes on a lower temperature 
Most of your washing can be done at a lower temperature – like 30 degrees – and still provide the same results. Doing this will help to reduce your electricity consumption as your washing machine won’t need to heat the water to such a high temperature.

#5 Purchase energy efficient appliances 
This is an expensive one to get into, but if you’re upgrading appliances then making sure you get one with a high efficiency rating will help save you money every day that it’s running.