Bảng Mạch Phát Tín Hiệu Ne555 Chuyên Dụng
1 Đánh Giá
1 Đã Bán
32
23.400 đ
Xem sản phẩm trên ShopeeQuốc tế
thứ năm 29/04/2021 lúc 07:09 CH
Product description:
This module is a square pulse generator with adjustable frequency and space occupancy ratio. it can be used in laboratories requiring square wave signal, pulse signal for stepping motor drive board, pulse generator for maintenance master.
-size: 20mm x 40mm with 4 3mm mounting holes on the plate
-function: square or rectangular waves with different frequencies
-module output pulse is positive voltage pulse, i.e. vcc voltage at high level and 0v at low level
-parameter indicators:
(1) power supply: use st original ne555 time base integration ic, input voltage: 4.5 v-12vdc. When 5v is supplied, the output current can be around 10-15ma and about 30-35ma.
(2) frequency: 5 frequency bands (measured values)
J1: 0.6 hz~25hz
J2 file: 7hz~300hz
J3 file: 50hz~2.5 khz
J4 block: 350khz~6.6 khz
J5 block: 6.7 khz~180 khz
Space ratio adjustable range: 0.4-0.99
(3) led output indicator, led light at low level, high level led out, led flashing fast and slow signal frequency output change except hop cap, rv1 adjustable frequency, led flashing can be regarded as the corresponding frequency change
(4) input current: 100ma
(5) output voltage: 4.2v-11.4v peak. (Change with electricity supply voltage)
(6) occupancy ratio is the time spent on high-level electricity.Frequency formula: th 0.7 (ra+rb) c, tl 0.7 r2c, pulse cycle t th+tl;Merge two formula cycles t 0.7 (ra+2rb) c, ra, rb for 0-10k adjustable;
(7) input: vcc power supply positive gnd power supply negative output: vcc out gnd input voltage is the same as output. Out is the frequency signal of the output.
This module is a square pulse generator with adjustable frequency and space occupancy ratio. it can be used in laboratories requiring square wave signal, pulse signal for stepping motor drive board, pulse generator for maintenance master.
-size: 20mm x 40mm with 4 3mm mounting holes on the plate
-function: square or rectangular waves with different frequencies
-module output pulse is positive voltage pulse, i.e. vcc voltage at high level and 0v at low level
-parameter indicators:
(1) power supply: use st original ne555 time base integration ic, input voltage: 4.5 v-12vdc. When 5v is supplied, the output current can be around 10-15ma and about 30-35ma.
(2) frequency: 5 frequency bands (measured values)
J1: 0.6 hz~25hz
J2 file: 7hz~300hz
J3 file: 50hz~2.5 khz
J4 block: 350khz~6.6 khz
J5 block: 6.7 khz~180 khz
Space ratio adjustable range: 0.4-0.99
(3) led output indicator, led light at low level, high level led out, led flashing fast and slow signal frequency output change except hop cap, rv1 adjustable frequency, led flashing can be regarded as the corresponding frequency change
(4) input current: 100ma
(5) output voltage: 4.2v-11.4v peak. (Change with electricity supply voltage)
(6) occupancy ratio is the time spent on high-level electricity.Frequency formula: th 0.7 (ra+rb) c, tl 0.7 r2c, pulse cycle t th+tl;Merge two formula cycles t 0.7 (ra+2rb) c, ra, rb for 0-10k adjustable;
(7) input: vcc power supply positive gnd power supply negative output: vcc out gnd input voltage is the same as output. Out is the frequency signal of the output.