Shenzhen Tianzhuo Hongxuan Electronics

Solution

Failure mode and cause analysis of aluminum electrolytic capacitor

Capacitance, also known as“Capacitance,” refers to the storage of free charge at a given potential difference, referred to as C, in international units as Farah (F) . In general, the electric charge moves in an electric field, and when there is a medium between conductors, it prevents the charge from moving and causes the charge to accumulate on the conductor, causing the charge to accumulate and be stored, the amount of charge stored is called capacitance. Capacitance is the ability to hold electric charges. Any electrostatic field is composed of many capacitors, there is an electrostatic field there is a capacitor, capacitance is described by the electrostatic field. It is generally considered that isolated conductor and infinite distance constitute capacitance, conductor grounding equivalent to receive infinite distance, and connected with the earth as a whole. Method 1: With a multimeter will recognize a watch pen touch capacitance one foot, and then with another touch another, when the watch needle will be agile rise and slowly fall, this is the charging and discharging process of the capacitor, clarify that capacitance is good, if not changed, then the exchange table pen will present the above phenomenon, also clarify is good, if not present charge discharge or watch needle rise after not falling is bad capacitance. Do not drop is a breakdown inside, watch needle is not moving is invalid, large capacitor with 1X10 small capacitor with 1X1K or 1X10K file. Method 2: Using digital multimeter capacitance measurement: will shift to the capacitance (according to your measured capacitance value selection file) , test with two table pen lap capacitance two feet, the table has a certain value, and then back to the infinite bit, exchange table pen try again, this time a slight error in the size of the display data, and then back to infinite large, explain capacitance is good, such as can not return infinite large, explain leakage, such as show infinite large, explain the internal open circuit or no capacity.
MORE
Simply take you to understand the widespread PD protocol fast charge development process

The USB-PD protocol, known as USB Power Delivery, may be new to many people, but more and more mobile phones are supporting it as a way to quickly charge devices. Those of you who know a little bit about the USB-PD protocol may think that the Charger output is Type-C, which is different from the usual USB-A output, but it's not just a matter of whether or not you're a USB-PD-enabled charger. A Type-C charger doesn't have to be a USB-PD-enabled charger; a USB-PD-enabled charger, must be output from Type-C.
MORE
How do you test a capacitor?

Capacitance, also known as“Capacitance,” refers to the storage of free charge at a given potential difference, referred to as C, in international units as Farah (F) . In general, the electric charge moves in an electric field, and when there is a medium between conductors, it prevents the charge from moving and causes the charge to accumulate on the conductor, causing the charge to accumulate and be stored, the amount of charge stored is called capacitance. Capacitance is the ability to hold electric charges. Any electrostatic field is composed of many capacitors, there is an electrostatic field there is a capacitor, capacitance is described by the electrostatic field. It is generally considered that isolated conductor and infinite distance constitute capacitance, conductor grounding equivalent to receive infinite distance, and connected with the earth as a whole. Method 1: With a multimeter will recognize a watch pen touch capacitance one foot, and then with another touch another, when the watch needle will be agile rise and slowly fall, this is the charging and discharging process of the capacitor, clarify that capacitance is good, if not changed, then the exchange table pen will present the above phenomenon, also clarify is good, if not present charge discharge or watch needle rise after not falling is bad capacitance. Do not drop is a breakdown inside, watch needle is not moving is invalid, large capacitor with 1X10 small capacitor with 1X1K or 1X10K file. Method 2: Using digital multimeter capacitance measurement: will shift to the capacitance (according to your measured capacitance value selection file) , test with two table pen lap capacitance two feet, the table has a certain value, and then back to the infinite bit, exchange table pen try again, this time a slight error in the size of the display data, and then back to infinite large, explain capacitance is good, such as can not return infinite large, explain leakage, such as show infinite large, explain the internal open circuit or no capacity.
MORE
How do you test a capacitor?

Capacitance, also known as“Capacitance,” refers to the storage of free charge at a given potential difference, referred to as C, in international units as Farah (F) . In general, the electric charge moves in an electric field, and when there is a medium between conductors, it prevents the charge from moving and causes the charge to accumulate on the conductor, causing the charge to accumulate and be stored, the amount of charge stored is called capacitance. Capacitance is the ability to hold electric charges. Any electrostatic field is composed of many capacitors, there is an electrostatic field there is a capacitor, capacitance is described by the electrostatic field. It is generally considered that isolated conductor and infinite distance constitute capacitance, conductor grounding equivalent to receive infinite distance, and connected with the earth as a whole. Method 1: With a multimeter will recognize a watch pen touch capacitance one foot, and then with another touch another, when the watch needle will be agile rise and slowly fall, this is the charging and discharging process of the capacitor, clarify that capacitance is good, if not changed, then the exchange table pen will present the above phenomenon, also clarify is good, if not present charge discharge or watch needle rise after not falling is bad capacitance. Do not drop is a breakdown inside, watch needle is not moving is invalid, large capacitor with 1X10 small capacitor with 1X1K or 1X10K file. Method 2: Using digital multimeter capacitance measurement: will shift to the capacitance (according to your measured capacitance value selection file) , test with two table pen lap capacitance two feet, the table has a certain value, and then back to the infinite bit, exchange table pen try again, this time a slight error in the size of the display data, and then back to infinite large, explain capacitance is good, such as can not return infinite large, explain leakage, such as show infinite large, explain the internal open circuit or no capacity.
MORE
What happens when a solid state capacitor fails?

Capacitors are one of the most widely used electronic component in electronic equipment. They are widely used in circuits for interleaving, coupling, bypass, filtering, tuning, energy conversion and control. What happens when a solid state capacitor fails? Common faults of capacitors. The power supply shall be cut off immediately when one of the following conditions of the capacitor is found. (1) the capacitor case expands or leaks oil. (2) the casing breaks and flashover occurs. (3) abnormal sound inside the capacitor. (4) when the temperature of the shell rises above 55 ° C, the temperature plate falls off.
MORE
What are the common misconceptions about using SMT electrolytic capacitors in daily life?

What are the common misconceptions about using SMT electrolytic capacitors in daily life? When the polarity of the power supply line cannot be determined, it is recommended to choose an infinite electrolytic capacitor. The ripple current through the electrolytic capacitor cannot exceed its allowable range. If it exceeds the specified value, a SMT capacitor with high ripple current resistance should be selected. The working standard voltage of SMT capacitors cannot exceed their rated voltage.
MORE