18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
Other information
product
polymer lithium battery Primary battery Rechargeable Battery LR03 alkaline battery
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

battery 18650 rechargeable

release time:2024-04-07 Hits:     Popular:AG11 battery

  About the design of voltage feedback circuit in current mode switching battery 18650 rechargeable

  In order to solve this problem, the current mode control mode can be used. Current-mode control not only retains the output voltage feedback of voltage-mode control, but also adds inductor current feedback; and this current feedback serves as the slope function of the PWM control converter, thereby eliminating the need for a sawtooth wave generator, making the system performance significantly better. superiority. The characteristics of the current-mode control method are as follows:

  1. The system has fast input and output dynamic response and high stability;

  2. High output voltage accuracy;

  3. Has the inherent ability to control the power switch current;

  4. Good parallel operation capability. Since the rate of change of the feedback inductor current didt changes directly with changes in the input voltage and output voltage. In the voltage feedback loop, the output of the error amplifier is used as a current given signal. Compared with the feedback inductor current, it directly controls the on-off duty cycle of the power switch. Therefore, voltage feedback is a very important issue in the design of current-mode power supplies. This article introduces the design of the voltage feedback circuit when using the current mode control chip uc3842.

  Introduction to uc3842

  Its internal reference circuit generates a +5V reference voltage as the internal battery 18650 rechargeable of UC3842, and the attenuated 2.5V voltage is used as the error amplifier reference, and can be used as a circuit output 5V/50mA battery 18650 rechargeable. The oscillator produces square wave oscillation. The oscillation frequency depends on the external timing component. The resistor R connected between pin 4 and pin 8 and the capacitor C connected between pin 4 and ground jointly determine the oscillation frequency of the oscillator, f= 1.8/RC. The feedback voltage is connected to the inverting terminal of the error amplifier from pin 2. Pin 1 is connected to an external RC network to change the closed-loop gain and frequency characteristics of the error amplifier, and pin 6 outputs a square wave that drives the switching tube as a totem pole output. Pin 3 is the current detection terminal, used to detect the current of the switch tube. When the voltage of pin 3 is ≥ 1V, UC3842 will turn off the output pulse to protect the switch tube from overcurrent damage. The UC3842PWM controller is equipped with an undervoltage lockout circuit with a turn-on threshold of 16V and a turn-off threshold of 10V. Because of this, oscillation when the circuit is operating near the threshold voltage can be effectively prevented.

  UC3842 has the following features:

  1. The number of pins is small, the peripheral circuit is simple, and the price is low;

  2. The voltage regulation rate is very good;

  3. The load regulation rate is significantly improved;

  4. Good frequency response characteristics and large stability;

  5. It has over-current limit, over-voltage protection and under-voltage lockout functions.


Read recommendations:

Lithium Battery LQ12-150

Flywheel battery

Classification Society Lithium Battery

convenient energy storage power supply wholesale

3.7v 2200mah 18650 lithium battery

Last article:3.7v 3000mah 18650 battery

Next article:button cell battery cr1620

Popular recommendation

701224 polymer battery Product

2023-03-22

1.2V Ni-MH Battery

2023-03-22

18650 battery 10000mah

2023-03-22

18650 battery pack manufacturer

2023-05-09

wall-mounted energy storage battery wholesale

2023-05-10

Coin Battery CR 1632

2022-09-27

Lithium Battery LQ12-100

2022-07-29

775767 3500MAH 7.4V

2023-06-10

903242 2500mAh 3.7V

2022-08-23

R20

2022-12-01

502030 200MAH 3.7V

2023-06-12

Coin Battery CR 1620

2022-09-27

LR6

2022-11-16

9V card-mounted carbon battery 6F22

2023-06-28

Plastic pet muzzle

2022-09-22

li ion 18650 battery pack wholesale

2023-06-25

3.7V 18650 lifepo4 battery

2023-06-25

button cell battery cr2025

2023-06-25

LR936 battery

2023-06-25

3.7 volt battery 18650

2023-06-25

Lithium Thionyl Chloride Primary Battery State - of - Charge Detection

2025-04-22

The influence of charge transfer resistance on low-temperature performance.LR44 battery

2024-07-03

Which Is Better for Tricycles: Lithium Ion Batteries or Lead Acid Batteries?

2025-02-14

Lithium battery conductivity

2024-07-02

Lithium power battery daily maintenance.18650 battery 3.7v 6000mah

2023-07-12

Influencing factors on thermal stability of lithium battery cathode materials.CR3032 battery

2023-06-08

Why 18650 lithium batteries can become an important component of modern mobile power sources.26650 b

2023-06-25

AG8 battery.Overview of power lithium battery industry technology: lithium-ion batteries will remain

2023-10-14

The disadvantage of lithium iron phosphate battery.lifepo5 battery for solar energy storage manufact

2023-05-08

Classification of lithium battery separators.18650 lithium battery cells

2023-07-20
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP